Technical Papers

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COMPRESSION CREEP RUPTURE OF AN E-GLASS/VINYL ESTER COMPOSITE: ANALYTICAL MODELING
Steven E. Boyda, John J. Leskob aArmy Research Laboratory, 4600 Deer Creek Loop, Aberdeen Proving Ground, MD 21005-5069, (410) 306 . 0701, FAX (410) 306 - 0829, steven.e.boyd@arl.army.mil bMaterials Response Group, Department of Engineering Science & Mechanics, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061 (540) 231 . 5259, FAX (540) 231 . 9187, jlesko@vt.edu
The growing use of polymer matrix composites in civil infrastructure, marine and military applications provides the impetus for developing mechanical models to describe their response under combined mechanical loading and fire. Although much research h...

COMPRESSION STRENGTH OF NOTCHED COMPOSITES
Cary J. Martin and Winston L. Hedges Hexcel Dublin, California 94568
The compressive strength of carbon-fiber reinforced composites containing large notches was investigated in an experimental and analytical study. The focus was on quantifying the compressive performance of current materials in the presence of large n...

Compressive Failure Analysis and Experimental Results for a Carbon/Epoxy Composite Cured at Different Isothermal Temperatures
Koushyar, Minaie
This paper presents compressive failure analysis and experimental results for a commercial carbon fiber prepreg (977-2 UD) cured at different isothermal cure temperatures. To obtain mechanical properties, compressive strength, and also stress-strain cu...

Compressive Response of Low Density ABS and Electroplated Sandwich Cores
Markkula, Storck, Burns, Zupan
The high strength and low weight requirements of advanced land, air and sea vehicles are often meet by taking advantage of sandwich panel structures. The low density cores used are limited to feasible topologies by current manufacturing techniques. Fus...

Computation of The Surface Long-Waviness Occurring on SMC-Parts Using Integrative Simulation Methods
Michaeli, Kremer
Compression molding of sheet molding compound (SMC) is widely applied to produce high quality parts for the automotive industry. These parts are commonly used for exterior applications in passenger cars and utility vehicles. A characteristic quality fe...

COMPUTATIONAL SIMULATION METHODS TO EVALUATE DESIGN CONCEPTS FROM ADVANCED MATERIALS
Ctistos C. Chart-k NASA Glenn Research Center Cleveland, Ohio
Effective computational simulation methods are described for modeling the inherent multi- disciplinary interactions which arise from introducing new materials and which govern the accurate response of propulsion systems. Results are presented for propu...

Computational Simulation of Progressive Damage in Composite Stiffened Panels with Discrete Source Damage
Zhang, Abdi
Stitched/Resin Film-Infused (S/RFI) composites have been identified as low-weight and costeffective materials. However, the application of S/RFI composites in aircraft yield more challenges to aircraft designers due to a lack of understanding failure m...

COMPUTERIZED CALCULATION OF COMPOSITE LAMINATES AND STRUCTURES: THEORY AND REALITY
M. Sonnen, C. Laval, A. Seifert MATERIAL S.A. Brussels, Belgium
The database and design software for composites, which has been developed by the authors, is now being used in research and industry. The reactions from composite design experts worldwide using the software give new insight into the calculation of co...

CONDUCTING POLYMER/ POLYIMIDE NANOCOMPOSITE COATING ON AA-2024 ALLOY
Submitted by Kunal Shah, Sandeep Kottarath & J. O. Iroh Department of Chemicals & Materials Engineering, 498 Rhodes Hall Mail Location # 12, University of Cincinnati, Cincinnati, OH-45221
Poly (N-ethyl aniline) (PNEA) coating was electrodeposited on AA-2024 alloy by using the constant current electrochemical process. The electrodeposition parameters such as monomer concentration and applied current were varied to optimize the corrosio...

CONDUCTIVE NANOCOMPOSITES: FOCUS ON LIGHTNING STRIKE PROTECTION
Thao Gibson and Dr. Sirina Putthanarat University of Dayton Research Institute, Dayton OH 45436 Dr. Jennifer Chase Fielding, Alicia Drain, and Katherine Will Air Force Research Laboratory, Materials and Manufacturing Directorate, Wright-Patterson AFB, OH 45433 Megan Stoffel Southwestern Ohio Council for Higher Education, Dayton OH 45433
The structural components of many aircraft platforms are being transitioned from metals to polymeric matrix composites (PMCs) due to lighter weight. However, since PMCs are electrically insulative, if struck by lightning the resin may vaporize, the fib...

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