Logo: University of Southern California
Prepreg Technology
Aging Effects
Nanocomposites
Sandwich Materials
Metals Processing
High-Temperature Composites and Liquid Molding
Acoustics and Vibration of Composites
Mechanical Testing
Miscellaneous

Prepreg Technology

In recent years, the composites industry has experienced a major shift from autoclave to out-of-autoclave (OoA) processing methods. This shift has been motivated by the high capital and operating costs of autoclaves as well as the long cycle times. As the demand for composites in commercial aircraft increases, autoclave processing will not be able to satisfy the required production rates.

While there are advantages to OoA processing, a major disadvantage is the increased susceptibility to defect formation due to the absence of compaction pressure provided by an autoclave. Therefore, one major focus of the M. C. Gill Composites Center is defect reduction in composite parts made from OoA prepregs. The Composites Center has access to a wide variety of characterization, fabrication and processing techniques that enable comprehensive analysis of OoA prepregs. Our efforts have led to new insights into defect sources and mitigation strategies. Recent contributions to this field are noted below.

Aging of Composites

As exemplified by wind turbine blades and components of oil platforms, the use of polymers and polymer composites for civil infrastructure is accelerating. In such applications, long-term durability is critical, as structures are generally expected to provide decades of service with minimal inspection or maintenance. Understanding the effects of aging on the mechanical performance of polymers and polymer composites are essential to mitigation strategies as well as lifetime prediction.

The M. C. Gill Composites Center at USC has been actively studying the effects of exposure to aging environments on the mechanical and thermal properties of composite materials. Studies have focused on thermal, oxidative, hygrothermal, and radiation aging effects. Research from this topic has led to several publications in the leading journals of the field; the most recent papers are listed below.

Nanocomposites

The performance of conventional materials can be enhanced by introducing nano-sized reinforcing phases. This reinforcing phase can be in the form of particles (ceramic particles), sheets (e.g. graphene microsheets), or fibers (e.g. carbon nanotubes). Understanding the mechanism responsible for improved mechanical properties is crucial to further development of processing techniques and improvement of properties.

The M.C. Gill Composites Center at USC has extensive experience in studying different aspects of nano-composites, including correlating processing parameters with mechanical properties of such materials. Our group has worked with a range of nano-inclusions, including carbon nanotubes, graphene, and nano-structured aluminum alloys. Below are some of our group’s publications, presenting our recent contributions to the field.

Sandwich Materials

Sandwich structures, consisting of two (frequently composite) face sheets bonded on either side of a low-density core material, display excellent out-of-plane compression and shear properties with very low areal density. For this reason, composite sandwich structures have long appealed to the aerospace industry for use in weight-critical applications.

The M.C. Gill Composites Center at USC has experience in studying how material selection, structural design, and manufacturing process parameters affect the mechanical performance of composite sandwich structures. In addition to introducing and characterizing novel core materials, our recent work includes characterizing and predicting quasi-static, dynamic, and vibroacoustic properties as a function of constituent element material properties. Below are some of our group’s most recent publications, describing our contributions to this field.

Metals Processing

Creating a material that is lightweight and yet strong is the ultimate goal of many material scientists. Lightweight metals such as aluminum, magnesium, titanium and their alloys are light and tough, resulting in extensive adoption for widespread use in aerospace, automobile, and other industries.

The M.C. Gill Composites Center at USC has a broad background in exploring and developing novel processing techniques and unique microstructures for such materials. Two highlights are manufacturing and production of aluminum and syntactic steel foams. Research from this topic has led to publications in the leading journals of the field; the most recent papers are listed below.

High-Temperature Composites and Liquid Molding

Carbon fiber composites are increasingly used in high-temperature applications, driving the development of new resin systems such as benzoxazines and polyimides. These resins can be used to fabricate fan blades, ducts, or casings for jet and rocket engines, where service temperatures can reach several hundred degrees Celsius. Manufacturing techniques include compression molding and resin transfer molding (RTM).

Due to the complex chemistry of these resins, the processing is significantly more challenging than for traditional epoxies. Research at the M.C. Gill Composites Center focuses on comprehensive materials characterization and the development of optimized manufacturing procedures. Through a combination of experiments and modeling, we demonstrate defect formation mechanisms and prevention strategies, and establish process windows and manufacturing guidelines as deliverables for our industrial sponsors.

Acoustics and Vibration

Traditionally, strategies for reducing the acoustic energy transmission have fundamentally relied on the principles underlying the Acoustic Mass Law. This law states that transmission loss in a theoretic infinite barrier with zero stiffness is directly proportional to both the frequency of the sound transmitted and aerial density of the acoustic barrier. For weight critical applications, strategies that rely on this principle are untenable.

The M.C. Gill Composites Center at USC has recently been investigating alternative strategies for acoustic transmission mitigation including. One such strategy uses an array of membrane-type acoustic metamaterials as an acoustic barrier for narrow-band low-frequency acoustic rejection. We also have experience optimizing the acoustic transmission properties of sandwich structures through the design of a novel core material. The Composite Center boasts significant experience in fabricating, experimentally characterizing, and modeling (analytic and finite element) these structures to determine and improve their vibroacoustic performance. Below are some of our group’s most recent publications, presenting our recent contributions to this field.

Mechanical Behavior and Failure Analysis

The composites industry is always looking to develop novel resin systems and fabric architectures to push the limits of various performance metrics; but before composites incorporating new material systems or processing techniques are deployed, it is important to have a full and reliable understanding of their mechanical properties. Additionally, a complementary understanding of failure mechanisms can inform designers of how to avoid the loading conditions under which failure can be anticipated.

The M. C. Gill Composites Center has made considerable investments in developing and maintaining the infrastructure necessary for a full battery of mechanical tests. Our facilities boast four load frames and an impact drop tower, allowing us to conduct quasi-static, dynamic, and fatigue testing. Additional analysis can be conducted using the available light and electron microscopes. Below are some of our group’s most recent publications, highlighting work in which our mechanical testing infrastructure was integral.

Miscellaneous

Because the study of composite materials requires a cross-disciplinary perspective as well as a wide array of laboratory instrumentation, we recruit members from diverse backgrounds—including physics, chemical engineering, mechanical engineering, and, of course, materials science. This diversity in our infrastructure and the technical breadth of our staff puts us in the unique position to take on a broad range of projects sometimes only tangentially related to our primary areas of focus. Below are our recent publications that reflect that diversity of backgrounds and training.

  • J-242     “The Effects of Heat Treatment on 7075 Al Cold Spray Deposits”, M.R. Rokni, C.A. Widener, V.K. Champagne, G.A. Grawford, and S.R. Nutt, Surface and Coatings Technology 310, 278-285(2017). (Download from USC Composites or ScienceDirect)
  • J-241     “Reuse and Upcycling of Thermoset Prepreg Scrap: Case Study with Out-Of-Autoclave Carbon Fiber/Epoxy Prepreg” Gaurav Nilakantan, S. Nutt,J Compos Matls (2017)(Download from USC Composites)
  • J-240     “Honeytubes: Hollow lattice truss reinforced honeycombs for crushing protection”J Xu, B Liu, Y Huan, S Nutt, J Li, and S Yin, Compos Structures 160 1147-54 (2017) 1-10 (Download from USC Composites or ScienceDirect)
  • J-239     “Modelling and monitoring of out-time and moisture absorption effects on cure kinetics and viscosity for an out-of-autoclave(OoA) prepreg”D Kim,T Centea,and S Nutt, Compos Sci & Tech 138[18]201-208 (2017)(Download from USC Composites or ScienceDirect)
  • J-238     “Assembly of layered monetite-chitosan nanocomposite and its transition to organized hydroxyapatite: An alternative to bone substitute material”J. Moradian-Oldak,Q.Ruan, D. Liberman, Y. Zhang, D. Ren, Y. Zhang, and S. Nutt, ACS Biomaterials Sci & Engrg 2[6] 1049-58(2016)(Download from USC Composites or ACS)
  • J-237     “Amelogenin affects brushite crystal morphology and promotes its phase transformation to monetite” Ren, Dongni;Ruan, Qichao; Tao, Jinhui;Lo, Jonathan;Nutt, Steven;Moradian-Oldak,Janet. Crystal Growth & Design Aug 16[9]4981-90 (2016)(Download from USC Composites or Wiley)
  • J-236     “Effect of prepreg format on defect control in out-of-autoclave processing”L.K. Grunenfelder, A Dills, T Centea, and S Nutt, Compos A, Nov (2016) (Download from USC Composites or ScienceDirect)
  • J-235     “Thermal Oxidation aging of polydicyclopentadiene and composites” Y. Hu, Y. Zhang,and S.R. Nutt, Polymer Composites, June (2016)(Download from USC Composites or Wiley)
  • J-234     “All-printed Strain Sensors:Builidng Blocks of the Aircraft Structural Health Monitoring System” Y. Zhang, N. Anderson, S. Bland,S. Nutt, G. Jursich, and Shiv. Hoshi, Sensors and Actuators A, Oct(2016) (Download from USC Composites or ScienceDirect )
  • J-233     “The effects of heat treatment on 7075 Al cold spray deposits” M.R. Rokni, C.A. Widener, V.K. Champagne, and S.R. Nutt, Surf Coatings&Tech, Oct (2016)(Download from USC Composites or ScienceDirect) )
  • J-232     “Manufacturing Cost Relationships for Vacuum Bag-Only Prepreg Processing” Timotei Centea and S.R. Nutt, J.Compos Matls 50[17] 2305-2321(2016) (Download from USC Composites or SAGE Journals)
  • J-231     “Development of a Process Window for Minimizing Volatile-Induced Surface Porosity in the Resin Transfer Molding of a Benzoxazine/Epoxy Blend” M. Anders*, J.Lo, T. Centea, and S.R. Nutt, J Advanced Matls Feb (2016)(Download from USC Composites )
  • J-230     “Eliminating Volatile-Induced Surface Porosity During Resin Transfer Molding of a Benzoxazine/Epoxy Blend” M. Anders*, J.Lo, T. Centea, and S.R. Nutt, Composites: Part A 84(2016)442-454(Download from USC Composites or ScienceDirect)
  • J-229     “The Effect of Processing Parameters on Volatile Release for a Benzoxazine/Epoxy Blended RTM Resin; J. Lo, M. Anders, T. Centea, and S.R. Nutt, Compos. A Feb (2016) (Download from USC Composites or ScienceDirect )
  • J-228     “Reuse and Upcycling of Aerospace Prepreg Scrap and Waste” Gaurav Nilakantan and S.R. Nutt, Reinforced Plastics 59[1]44-51(2015)(Download fromUSC Composites)
  • J-227     “Thermosetting Polymer Based Flexible Synthetic Cement for Successful Zonal Isolation in Thermal Wells-A New Approach” R. Shanbhag, Z. Melrose, S.R. Nutt,M.Cleveland,and R.Keese, Soc Petrol Engrs July(2015)(Download from USC Composites or Soc Petrol Engrs )
  • J-226     “Water Immersion aging of Polydicyclopentadiene Resin and Glass Fiber Composites”Yinghui Hu*, Xiaochen Li, Augustus W. Lang, Yunpeng Zhang, and S.R. Nutt,Polymer Degradation and Stability (2015) (Download from USC Composites or ScienceDirect)
  • J-225     “Two-Step SPD Processing of a Trimodal Al-Based Nanocomposite”Yuzheng Zhang, S Sabbaghianrad, H. Yang, T.D. Topping, T.G. Langdon, E.J. Lavernia, J.M. Schoenung, and S.R. Nutt, Metall Trans Sept (2015) (Download from USC Composites or Springer)
  • J-224     “Defect reduction strategies for the manufacture of contoured laminates using vacuum bag-only prepregs” Y. Ma, T. Centea, and S.R. Nutt, Polymer Compos Sept (2015) (Download from USC Composites or Wiley)
  • J-223     “Ductile phase toughening in TiBw/Ti-Ti3Al metallic-intermetallic laminates” H. Wu, B. Jin, L. Geng, G. Fan, X. Cui, M. Huang, R. Hicks, and S. Nutt, Metall Trans A, June (2015). (Download from USC Composites or Springer)
  • J-222     “Damage Evaluation in Tube Spinnability Test with Ductile Fracture Criteria” H. Ma, W. Xu, B. Jin, D. Shan, and S.R. Nutt, Intl J. Mech. Sci. 100 (2015) 99-111. (Download from USC Composites or ScienceDirect)
  • J-221     “Surface Porosity during Vacuum Bag Only Prepreg Processing: Causes and Mitigation Strategies” L. Hamill, T. Centea, and S. Nutt, Compos. Part A 75 (2015) 1-10. (Download from USC Composites or ScienceDirect)
  • J-220     “Hypervelocity Impact Testing of a Metallic Glass-Stuffed Whipple Shield” DC Hofmann, L Hamill, E Christianson, and S Nutt, Adv Engrg Matls (2015) 1-10 (Download from USC Composites or Wiley)
  • J-219     “Parametric Modeling, Higher Order FEA and Experimental Investigation of Hat-Stiffened Composite Panels” X. Li, R.M. Hicks, A. Pun, S. Joshi, and S. Nutt, Compos. Structures 128 (2015) 207-220 (Download from USC Composites or ScienceDirect)
  • J-218     “Micro-strain Evolution and Toughening Mechanisms in a Trimodal Al-based Metal Matrix Composite” Yuzheng Zhang, Troy Topping, Hanry Yang, Enrique Lavernia, Julie Schoenung, and Steven R. Nutt, Metall. Trans A, 46 [3] 1196-1204 (2015) (Download from USC Composites or Springer)
  • J-217     “Hygrothermal aging effects on fatigue of glass fiber/polydicyclopentadiene composites” Y. Hu, A.W. Lang, X. Li, and S.R. Nutt, Polymer Degrad & Stability 110 464-472 (2014) (Download from USC Composites or ScienceDirect)
  • J-216     “A Review of Out-of-Autoclave Prepregs – Material Properties, Process Phenomena, and Manufacturing Considerations” T. Centea, L. K. Grunenfelder, and S.R. Nutt, Compos. A 70 Mar (2015) 132-154 (Download from USC Composites or ScienceDirect)
  • J-215     “Amelogenin-Chitosan Matrix for Human Enamel Regrowth: Effects of viscosity and Supersaturation Degree” Q. Ruan, N. Siddiqah, X. Li, S. Nutt, and J. Oldak, Connective Tissue Research, 55 [S1] 150-154 (2014) (Download from USC Composites or Taylor & Francis Online)
  • J-214     “In-situ cure monitoring of an out-of-autoclave prepreg: Effects of out-time on viscosity, gelation and vitrification" D.Kim, T.Centea, S.R.Nutt, Compos.Sci.&Tech.102(2014)132-138. (Download from USC Composites or ScienceDirect)
  • J-213     “Preparation and utility of self-lubricating & anti-wear graphene oxide/nano-polytetrafluoroethylene hybrid” T. Huang, T. Li, Y. Xin, B. Jin, Z. Chen, C. Su, H. Chen, and S.Nutt, accepted in RSC Advances, April 2014 (Download from USC Composites or RSC)
  • J-212     “Transverse compression failuire of unidirectional composites” Y. Hu, N. Kar, and. S. Nutt, accepted in Polymer Compos. (2014) (Download from USC Composites or Wiley)
  • J-211     “Bio-Inspired Impact Resistant Composites” L. Grunenfelder, N. Suksangpanya, C. Slinas, G. Milliron, N. Yaraghi, S. Herrera, I. Evans-Lutterodt, S.R. Nutt, P. Zavattieri, D. Kisailus, Acta Biomaterialia Apr (2014). (Download from USC Composites or ScienceDirect)
  • J-210     “Effects of Fabric Target Shape and Size on the V50 Ballistic Impact Response of Soft Body Armor Composite Structures” G. Nilakantan and S. Nutt, Compos. Structures 116 661-669(2014) (Download from USC Composites or ScienceDirect)
  • J-209     “Out-Time Effects on Cure Kinetics and Viscosity for an Out of Autoclave (OOA) Prepreg: Modeling and Monitoring” D. Kim, T. Centea, S.R. Nutt, Compos. Sci. & Tech. 100(2014)63-69 (Download from USC Composites or ScienceDirect)
  • J-208     “Poly(phenylene oxide) modified cyanate ester resin for self-healing” L. Yuan, S. Huang, Y. Hu, A. Gu, G. Liang, G Chen, Y Gao, and, S. Nutt, Polymers for Advanced Technologies (2104) (Download from USC Composites or Wiley)
  • J-207     “Compressive efficiency of stretch-stretch hybrid hierarchical composite lattice cores” Y. Sha and S. Nutt, Materials & Design 56 731-739 (2014) (Download from USC Composites or ScienceDirect)
  • J-206     “Effects of Clamping Design on the Ballistic Impact Response of Soft Body Armor” G. Nilakantan and S. Nutt, Compos Structures 108 137-50 (2014) (Download from USC Composites or ScienceDirect)
  • J-205     “High-yield synthesis of single-layer graphene microsheets with dimensional control” Z. Chen, T. Huang, B.C. Jin, J. Hu, H. Lu, and S. Nutt, Carbon 68 (2013) 167-174 (Download from USC Composites or ScienceDirect)
  • J-204     “Blends of Polystyrene and Poly (n-Butyl Methacrylate) Mediated by Perfluorocarbon End Groups” Jingguo Shen, Victoria A. Piunova, Steven Nutt and Thieo E. Hogen-Esch, Polymer 215790-5800 (2013) (Download from USC Composites or ScienceDirect)
  • J-203     “Synthesis of poly(urea-formaldehyde) encapsulated dibutyltin dilaurate through the self-catalysis of core materials” L. Yuan, F. Chen, A. Gu, G. Liang, C. Lin, S. Huang, and S. Nutt, Polymer Bulletin Sept (2013) (Download from USC Composites or Springer)
  • J-202     “A cyanate ester/microcapsule system with low cure temperature and self-healing” L. Yuan, S. Huang, A. Gu, G. Liang, F. Chen, Y. Hui, and S. Nutt, Compos Sci & Tech 87 (2013) 111-117 (Download from USC Composites or ScienceDirect)
  • J-201     “Hypervelocity Impact of Bulk Metallic Glasses and Composites" L. Hamill, S. Roberts, M. Davidson, W.L. Johnson, S. Nutt, and D.C. Hofmann, Adv. Engrg. Matls, 15 [9] 1-9 (2013) (Download from USC Composites or Wiley)
  • J-200     “Inertial stabilization of flexible polymer micro-lattice materials” S. Yin, A. Jacobsen, L. Wu, and S. Nutt, J Mater Sci, (2013) (Download from USC Composites or Springer)
  • J-199     “Damping and low-velocity impact behavior of filled composite pyramidal lattice structures” Y Sha and S Nutt, J Compos Mater (2013) (Download from USC Composites or Sage)
  • J-198     “In-plane compression of hollow composite pyramidal sandwich columns” S. Yin, S. Nutt, J Compos Mater Apr (2013) (Download from USC Composites or Sage)
  • J-197     “An Amelogenin-Chitosan promotes assembly of an enamel-like layer with a dense interface” Q Ruan, Y Zhang, X Yang, S Nutt, and J Moradian-Oldak, Acta Biomaterialia, 9 (2013) 7789-7297 (Download from USC Composites or ScienceDirect)
  • J-196     “Modified Graphene/Polymiide Nanocomopsites: Reinforcing and Tribologicial Effects” Huang, Ting; Xin, Yuanshi; Li, Tongsheng; Nutt, Steven; Su, Chao; Chen, Haiming; Liu, Pei; Lai, Zuliang, ACS Applied Mater. & Interfaces (2013)(Download from USC Composites or ACS)
  • J-195     “Radiation Effects on Composites for Long-Duration Lunar Habitats” K. Rojdev, M.J.E. O’Rourke, C. Hill. S. Nutt, and W. Atwell, J Compos Mater (2012) (Download from USC Composites or Sage)
  • J-194     “Dynamic Micro-strain Analaysis of Ultrafine-Grained Aluminum Magnesium alloy using Digital Image Correlation”, Y. Zhang, T. Topping, E. Lavernia, and S. Nutt, accepted in Met Trans A April (2013) (Download from USC Composites or Springer)
  • J-193     “Compression and low-velocity impact behavior of aluminum syntactic foam” G. Castro and S. Nutt, accepted inMat Sci & Engrg (2013) (Download from USC Composites or ScienceDirect)
  • J-192     “Tension-tension fatigue behavior of layer-to-layer 3-D angle-interlock woven composites” L. Jin, B. Jin, S. Nutt, B. Sun, and B. Gu, Mater Chem & Phys 1-8 (2013) (Download from USC Composites or ScienceDirect)
  • J-191     “Effects of extrusion deformation on microstructure, mechanical properties and hot workability of b containing TiAl alloy” W.C. Xu, D.B. Shan, H. Zhang, X.A. Li, Y.Z. Zhang, and S. Nutt, Mater Sci & Engrg 571 199-206 (2013)(Download from USC Composites or ScienceDirect)
  • J-190     “Synthesis of syntactic steel foam using gravity-fed infiltration” G Castro and SR Nutt, Mater Sci & Engrg 553 89-95 (2012)(Download from USC Composites or ScienceDirect)
  • J-189     “Investigating Amorphous Metal Composite Architectures as Spacecraft Shielding” M Davidson, S Roberts, G Castro, RP Dillon, A Kunz, H Kozachkov, MD Demetriou, WL Johnson, S Nutt, DC Hofmann, Adv Engrg Matls (2012) (Download from USC Composites or Wiley)
  • J-188     “Stretch-bend-dominated hierarchical composite pyramidal lattice cores” Y Sha, L Wu, and SR Nutt, Compos Structures 98 153-159 (2012) (Download from USC Composites or ScienceDirect)
  • J-187     “Effect of room-temperature out-time on tow impregnation in an out-of-autoclave prepreg,” LK Grunenfelder, T Centea, P Hubert, and SR Nutt, Compos. A 45 119-126 (2012)(Download from USC Composites or ScienceDirect)
  • J-186     “InGaN/GaN Multiple Quantum Wells Grown on Nonpolar Facets of Vertical GaN Nanorod Arrays” Yeh, Ting-Wei; Lin, Yen-Ting; Stewart, Lawrence; Dapkus, Dan; Sarkissian, Raymond; O'Brien, John; Ahn, Byungmin; Nutt, Steven, Nano Letters 12 [6] 3257-3262 (2012) (Download from USC Composites or ACS)
  • J-185     “Novel polytphenylene oxide microcapsules filled with epoxy resins” L. Yuan, A Gu, S. Nutt, J. Wu, C. Lin, F. Chen, and G. Liang, Polymers Adv. Tech. 24 [1] 81-89 (2012)(Download from USC Composites or Wiley)
  • J-184     “Scaling of membrane-type locally resonant acoustic metamaterial arrays” C.J. Naify, C-M Chang, G McKnight, and S R Nutt, J Acousitic Soc America 132 [4] pt 2 (2012) 2784-2792 (Download from USC Composites or AIP)
  • J-183     “Influence of Hot Isostatic Pressing on the Microstructure and Mechanical Behavior of a Nanostructured Al Alloy” T. Topping, B. Ahn, SR Nutt, and EJ Lavernia, Powder Metall July (2012) (Download from USC Composites or Publisher)
  • J-182     “In situ strain analysis of potential habitat composites exposed to a simulated long-term lunar radiation exposure” K. Rojdev, M.J.E. O’Rourke, C. Hill, S. Nutt, and W. Atwell, J Rad Phys & Chem (2012) (Download from USC Composites or ScienceDirect)
  • J-181     “Diametral compression of pultruded composite rods” N.K. Kar, Y. Hu, B. Ahn, and S.R. Nutt, Composites Sci & Tech72 [11] 1283-1290 (2012). (Download from USC Composites or ScienceDirect)
  • J-180     “Tension-tension fatigue of hybrid composite rods” N. Kar, Y. Hu, E. Barjasteh, and S. Nutt, Composites A 43[5]2115-2124 (2012) (Download from USC Composites or ScienceDirect)
  • J-179     “Prepreg age monitoring via differential scanning calorimetry” L. Grunenfelder and S.R. Nutt, accepted in J Reinforced Plastics & Composites. 31 [5] (2012) 295-302. (Download from USC Composites or Sage)
  • J-178     “Hybrid truss concepts for carbon fiber composite lattice structures” S. Yin, L. Wu, L. Ma, and S. Nutt, Composites Part B 43 [4] 1749-1755 (2012) (Download from USC Composites or Publisher)
  • J-177     “Vertical Nonpolar Growth Templates for Light Emitting Diodes Formed with GaN Nanosheets” Yeh, Ting-Wei; Lin, Yen-Ting; Ahn, Byungmin; Stewart, Lawrence; Dapkus, Dan; Nutt, S. Appl. Phys Lett. 100 [3] 033119 (2012) (Download from USC Composites or AIP)
  • J-176     “Synthesis of syntactic steel foam using mechanical pressure infiltration” G. Castro and S. Nutt, Mater Sci & Engrg A535 (2012) 274-280 (Download from USC Composites or ScienceDirect)
  • J-175     “Moisture Absorption in Unidirectional Hybrid Composites” E. Barjasteh and S.R. Nutt, Compos. A, 43 [1] (2012) 158-164 (Download from USC Composites or ScienceDirect)
  • J-174     “Multifunctional Superhydrophobic Composite Films from a Synergistic Self-Organization Process” H. Lu, and M. Fang, Z. Tang, and S. Nutt J. Mater. Chem. 22 (2012) 109-114. (Download from USC Composites or RSC)
  • J-173     “Transmission loss of membrane-type acoustic metamaterials with coaxial ring masses” C. Naify, CM Chang, G. McKnight, and S. Nutt, J Appl Phys 110 (2011) 124903. (Download from USC Composites or AIP)
  • J-172     “The effect of filler on thermal aging of next-generation power lines” E. Barjasteh, S. Nutt, Composites A, 42 [12] 1873-1882 (2011) (Download from USC Composites or ScienceDirect)
  • J-171     “Influence of Process Parameters on the Mechanical Behavior of a Nanostructured Al Alloy" Troy Topping, Byungmin Ahn, Ying Li, Steve Nutt, and Enrique Lavernia, Metall Trans A 43 [2] (2011) 505-519. (Download from USC Composites or Springer)
  • J-170     “Pyramidal lattice sandwich structures with hollow composite trusses” S. Yin, L. Wu, L. Ma, and S. Nutt Compos. Structures 93 [12] (2011) 3104-3111. (Download from USC Composites or ScienceDirect)
  • J-169     “Response to Comments on An Analytical Study of Sound Transmission Through Unbounded Panels of Functionally Graded Materials” C. Huang and S. Nutt, J Sound & Vibration (2011). (Download from USC Composites or ScienceDirect)
  • J-168     “Membrane-type metamaterials: transmission loss of multi-celled arrays” C. Naify, C.M. Chang, G. McKnight, F. Scheulen, S. Nutt, J. Appl. Phys. 109 104092 (2011) (Download from USC Composites or AIP)
  • J-167     “Bending fatigue of hybrid composite rods” NK Kar, E Barjasteh, EJ Bosze, and SR Nutt, Compos A 42 [3] (2011) 328-336 (Download from USC Composites or ScienceDirect)
  • J-166     “An Analytical Study of Sound Transmission Through Unbounded Panels of Functionally Graded Materials” C. Huang and S. Nutt, J Sound & Vibration 330 [6] (2010) 1153-1165. (Download from USC Composites or ScienceDirect)
  • J-165     “Single-Layer Graphene Nanosheets with Controlled Grafting of Polymer Chains” M Fang, H Lu, Y Yang, and S Nutt, J Amer Chem Soc 20 (2010) 1982-1992. (Download from USC Composites or RSC)
  • J-164     “Vitreous carbon micro-lattice structures” A.J. Jacobsen, S. Mahoney, W.B. Carter, and S. Nutt, Carbon 49 (2010) 1025-1032. (Download from USC Composites or ScienceDirect)
  • J-163     “Diffusivity and climatic simulation of hybrid foams” A. Desai, M.V. Alonso, and S.R. Nutt, J. Cellular Plast. 46 [5] (2010) 461-478. (Download from USC Composites or Sage)
  • J-162     “Transmission loss and dynamic response of membrane-type locally resonant acoustic metamaterials” C Naify, C-M Chang, G McKnight, and S Nutt, J Appl Phys 108 (2010) 114905-912. (Download from USC Composites or AIP)
  • J-161     “Transmission loss of honeycomb sandwich structures with attached gas layers" Christina Naify, Changzheng Huang, Matthew Sneddon, and Steven Nutt, J Applied Acoustics 72 [2-3](2010) 71-77 (Download from USC Composites or ScienceDirect)
  • J-160     “Void formation in composite prepregs – effect of dissolved moisture” L Grunenfelder and SR Nutt, Compos Sci & Tech 70 [16] (2010) 2304-09. (Download from USC Composites or ScienceDirect)
  • J-159     “Effect of grain size on strain rate sensitivity of cryomilled Al-Mg alloy” B. Ahn, R Mitra, EJ Lavernia, SR Nutt, J Mater Sci 45 (2010) 4790-4795. (Download from USC Composites or Springer)
  • J-158     “High strain rate deformation and resultant damage mechanisms in ultrafine-grained aluminum matrix composites” R. Vogt, Z. Zhang, E. Huskins, B. Ahn, S. Nutt, K.T. Ramesh, E.J. Lavernia, J.M. Schoenung Mater Sci & Engrg A527 (2010) 5990-5996. (Download from USC Composites or ScienceDirect)
  • J-157     “Glass transition temperature changes of polymer nanocomposites comprised of finely dispersed ZnO quantum dots” M. Wong, R. Tsuji, H.J. Sue, and S. Nutt, Soft Matter 6 (2010) 4482-4490. (Download from USC Composites or RSC)
  • J-156     “Effects of organophilic modified attapulgite nano-rods on thermal and mechanical behavior of segmented polyurethane elastomers” C-H. Wang, Y-T Shieh, G. Guo, S. Nutt Polymer Composites 31[11]1890-1898 (2010). (Download from USC Composites or Wiley)
  • J-155     “Modeling of hybrid composite foam” A. Desai, V. Alonso, and S.R. Nutt, J. Cell. Plast. 46 (2010) 113-128. (Download from USC Composites or Sage)
  • J-154     “Predicting the sound transmission loss of sandwich panels by statistical energy analysis approach” T. Wang, S. Li, S. Rajaram, S.R. Nutt, J Vibration & Acoustics, 132 [1] (2010). (Download from USC Composites or ASME)
  • J-153     “Covalent Polymer Functionalization of Graphene Nanosheets and Mechanical Properties of Composites” M. Fang, K. Wang, H. Lu, Y. Yang, and S. R. Nutt, J. Mater. Chem. 19 (2009) 7098-7105. (Download from USC Composites or RSC)
  • J-152     “Measurements of loss factors of honeycomb sandwich structures” P. Peters, M. Sneddon, and S.R. Nutt, Noise Control Engrg J. 57 [1] (2009) 27-31. (Download from USC Composites or IngentaConnect)
  • J-151     “Tensile Deformation and Fracture Mechanism of Bulk Bimodal Ultrafine Grained Al-Mg Alloy" Zonghoon Lee, Velimir Radmilovic, Byungmin Ahn, Enrique Lavernia, and Steve Nutt, Met. Trans. A (2009) 795-801. (Download from USC Composites or Springer)
  • J-150     “The effects of soft-segment molecular weight and organic modifier on properties of organic-modified MMT-PU nanocomposites” C-H Wang, Y-T Shieh, and S. Nutt, J. App. Polymers 114 (2009) 1025-1032. (Download from USC Composites or Wiley)
  • J-149     “Carbon nanotube reinforced acoustically transparent epoxy nanocomposites for underwater sonar windows” W. Chen, S. Rajaram, S. Thomas, and S.R. Nutt, J. Adv. Mater. 41 [3](2009) 5-17.  (Download from USC Composites or Refdoc)
  • J-148     "Small-scale transmission loss facility for flat lightweight panels", Shankar Rajaram, Tongan Wang and Steven Nutt, Noise Control Enrg J 57 [5](2009) 536-542. (Download from USC Composites or IntegaConnect)
  • J-147     “Thermal aging of fiberglass/carbon fiber hybrid composites” E. Barjasteh, E. Bosze, Y-I Tsai, and S.R. Nutt,Composites A 40 [12] (2009) 2038-2045. (Download from USC Composites or ScienceDirect)
  • J-146     “Wave speeds of honeycomb sandwich structures: an experimental approach” P. Peters and S.R. Nutt, App. Acoustics 71 [2] (2009)115-119 (Download from USC Composites or ScienceDirect).
  • J-145     “Temperature Dependence of Resin Flow in an Out-Of-Autoclave Process,” S. Thomas and S.R. Nutt, Applied Compos. Material 16 [3](2009) 183-96 (Download from USC Composites or Publisher).
  • J-144     “Basalt Fiber - Epoxy Laminates with Functionalized Multi-walled Carbon Nanotubes" Wei Chen, Hongbin Shen, Maria L Auad, Steven R. Nutt, Compos. A 40 [8] 1082-1089 (2009) (Download from USC Composites or Publisher).
  • J-143     “Parametric Analysis of Tensile Properties of Bimodal Aluminum Alloys by Finite Element Method” W.L. Zhang, S. Li, and S.R. Nutt, J. Mater. Sci. Tech. 25 [2] (2009) 281-288. (Download from USC Composites or Publisher)
  • J-142     “Enhancing the specific strength and specific stiffness of phenolic microsphere syntactic foams reinforced with carbon fibers” Yi-Jen Huang, Chia-Hao Wang, Yu-Lin Huang, Gangjian Guo, and S.R. Nutt, Polymer Compos. 31 [2] (2009) 256-262(Download from USC Composites or Wiley)
  • J-141     “Strain mapping of Al-Mg alloy with multi-scale grain structure using digital image correlation method” B. Ahn and S.R. Nutt,” Experimental Mechanics 50 [1] (2009) 117-123 (Download from USC Composites or Springer)
  • J-140     “Influence of hygrothermal environment on thermal and mechanical properties of carbon fiber/fiberglass reinforced matrix composite materials” Y-I Tsai, E.J. Bosze, E. Barjasteh, and S.R. Nutt, Compos. Sci. & Technol.69 [3-4] (2009) 432-437 (Download from USC Composites or ScienceDirect)
  • J-139     “Sound transmission prediction by 3-D elasticity” C. Huang and S.R. Nutt, App. Acoustics 70 [5] (2009) 730-736 (Download from USC Composites or ScienceDirect)
  • J-138     “Hybrid Network Structure and Mechanical Properties of Rod-Like Silicate/Cyanate Ester Nanocomposites” Y. Pan, Y. Xu, L. An, H. Lu, Y. Yang, W. Chen, and S. Nutt, Macromolecules 41 [23] (2008) 9245-9258 (Download from USC Composites or ACS)
  • J-137     “Modeling of Fiber-Reinforced Phenolic Foam” A. Desai, M. V. Alonso, and S.R. Nutt, J. Cellular Plastics 44 [5](2008) 391-413 (Download from USC Composites or Sage)
  • J-136     “Dynamic observations of deformation in an ultrafine-grained Al-Mg alloy with bimodal grain structure” B Ahn, E.J. Lavernia and S.R. Nutt, J. Mater. Sci.43 [23](2008) 7403-7408. (Download from USC Composites or Springer)
  • J-135     “The Influence of Functionalized MWCNT Reinforcement on the Thermomechanical Properties and Morphology of Epoxy Nanocomposites” W. Chen, H. Lu, and S. Nutt, Compos. Sci. & Tech. 68 [12](2008) 2535-2542 (Download from USC Composites or ScienceDirect)
  • J-134     “Optimal design of acoustical sandwich panels with a genetic algorithm” T. Wang, S. Li, and S.R. Nutt, Applied Acoustics 70 [3](2008) 416-425 (Download from USC Composites or ScienceDirect)
  • J-133     “Synthesis and characterization of organically modified attapulgite/polyurethane nanocomposites” C-H Wang, M.L. Auad, N.E. Marcovich, and S. Nutt, J App Polymer Sci 109 [4] (2008) 2562-2570. (Download from USC Composites or Wiley)
  • J-132     “In Situ Estimation of Through-Thickness Resin Flow Using Ultrasound” S. Thomas, C. Bongiovanni, and S.R. Nutt, Compos. Sci & Tech 68 [15-16] 3093-3098 (2008). (Download from USC Composites or ScienceDirect)
  • J-131     "Expansion Mechanisms in Foaming Aluminum Melts" Z. Song and S.R. Nutt, Metall. Trans. 39 [9] (2008) 2215-2227. (Download from USC Composites or Springer)
  • J-130     “Strain rate sensitivity studies of cryomilled Al alloy performed by nanoindentation” B. Ahn, R. Mitra, A.M. Hodge, E. Lavernia, and S. Nutt Matls Sci Forum 584-86 (2008) 221-226. (Download from USC Composites or Scientific.net)
  • J-129     "Consolidation and Forging Methods for a Cryomilled Al Alloy" by A. Newbery, B. Ahn, R. Hayes, P. Pao, S. Nutt, and E. Lavernia, Metall. Trans. A 39 [9] (2008) 2193-2205. (Download from USC Composites or Springer)
  • J-128     “Large UFG Al alloy plates from cryomilling” A.P. Newbury, E. Lavernia, B. Ahn, S. Nutt, P. Pao, and T. Topping,J. Mater. Proc. Tech. 203 (2008) 37-45. (Download from USC Composites or ScienceDirect)
  • J-127     “Micro-scale truss structures with three-fold and six-fold symmetry formed from self-propagating polymer waveguides” A. Jacobsen, W. Barvosa-Carter, and S. Nutt, Acta Mater. 56 [11] (2008) 2540-2548. (Download from USC Composites or ScienceDirect)
  • J-126     “Shear Behavior of Polymer Micro-truss Structures Formed from Self-propagating Polymer Waveguides” A. Jacobsen W. Barvosa-Carter, and S. Nutt Acta Mater. 56 [6] (2008) 1209-1218. (Download from USC Composites or ScienceDirect)
  • J-125     “Characterization of Nano-Cellulose Reinforced Shape Memory Polyurethanes,” M. L. Auad, V. S. Contos, S. Nutt, M.I. Aranguen, and N.E. Marcovich, Polymer International 57 [4] (2008) 651-659. (Download from USC Composites or Wiley)
  • J-124     “Mechanical Behavior of Hybrid Composite Phenolic Foam,” A. Desai, M.L. Auad, H. Shen, and S.R. Nutt, J. Cellular Plastics 44 [1] (2008) 15-36. (Download from USC Composites or Sage)