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¡¥GREEN¡¦ NANOCOMPOSITE USING SOY PROTEIN AND NANOCLAY PARTICLES Xiaosong Huang and Anil N. Netravali Fiber Science Program, Cornell University Ithaca, NY 14853 Considerable amount of research is being conducted at present in developing biodegradable polymers and composites because of the environmental problems caused by petroleum-based non-degradable materials that are currently being used. Mechanical propert...
0.94-Meter (37-Inch) Cryogenic Demonstration Tank M.J. Warner, D. J. Son, D.M. Lester Thiokol Propulsion Brigham City, Utah Approved for public release; distribution unlimited. This paper presents the design, analysis, fabrication, and testing of a 940 mm (37-inch) diameter by 1,118 mm (44-inch) long cryogenic demonstration tank that was developed and manufactured under a contract for SRS Technologies of Huntsville, Alabama. ...
10 YEARS OF SEISMIC AND STRENGTHENING CASE HISTORIES USING FRPS IN THE NORTHWEST Peter Barlow Contech Services, Inc. Seattle, Washington A review of five case studies detailing the application of FRPs in both transportation and building applications for seismic as well as strengthening applications. Material properties and engineering rational for the selection of both glass and carbon...
10KW SMALL WIND TURBINE SYSTEMS DEVELOPMENT USING A COMPOSITE STRUCTURE Gaku Kimura, Takaya Sakurai, Toshiyuki Uzawa, GH Craft Ltd., 733 Itazuma, Gotemba-shi, Shizuoka, Japan 412-0048 www.Ghcraft.com This paper deals with some of wind turbine solutions based on higher efficiency premises for small wind turbine systems, coupled with demands for unique Japanese climate and wind condition. CFRP rotor blades are made using a light RTM (L-RTM) process with
120MM PRESTRESSED THERMOPLASTIC COMPOSITE OVERWRAPPED GUN TUBE Andrew Littlefield, Edward Hyland, and John Keating US Army RDECOM-ARDEC Benét Laboratories Watervliet, NY 12180 USA The emphasis on lightweight large caliber weapons systems has placed the focus on the use of advanced composite materials. Using composite materials not only directly removes weight from the gun tube but, by better balancing the tube, allows the use of...
2006 WESTERN WASHINGTON UNIVERSITY HUMAN POWERED SUBMARINE: THE VIKING DREKAR Nicole Larson, Carissa Book, Randy Holt, Dave Gertler Western Washington University . Plastics Engineering Technology Bellingham, WA 98225 Biennially, the Human Powered Submarine (HPS) Races are held in Southern California. Western Washington University (WWU) participated by entering a seventeen-foot long, two- person, propeller driven submarine named the Drekar. It was entirely student d...
21st Century Analysis and Design of Composite Flight Vehicle Structures using an FEA-Based Electronic Handbook Leemans The persistent challenge to design lighter and more damage tolerant structures is leading engineers to increase the use of advanced composite materials into their designs. This in turn has revealed the necessity to develop robust analysis and design to...
2D MICROMECHANICS AND EFFECTIVE MODULI OF CIRCULAR FIBER-REINFORCED COMPOSITES Haeng-Ki Lee, Bong-Rae Kim Department of Civil and Environmental Engineering, Korea Advanced Institute of Science and Technology 373-1 Guseong-dong, Yuseong-gu, Daejon 305-701, South Korea This paper summarizes some results of a numerical study (Kim and Lee [1]) conducted to develop a prediction model for circular fiber-reinforced composites considering a finite representative volume element (RVE). The finite Eshelby??s tensor proposed by L
3 DIMENSIONAL FIBER STRUCTURES FOR COMPOSITES Nanlin Han* and Lin Sun 3D Nanocomposites, Inc., ** 27653 Woodfield Pl, Valencia, California 91355, USA This paper unveils a new approach of using Velcro (hook, loop and mushroom-like fasteners) on both sides of fiber plies to make 3D composites and increase their interlaminate strength without disturbing the 2D laying processes of the current major composi
3-D PROCESS MODEL FOR AUTOCLAVE CURING OF LARGE COMPOSITE STRUCTURES X. Zeng, J. Raghavan, and V. Kaushik Composites Materials & Structures Research Group, University of Manitoba Winnipeg, Manitoba, R3T 5V6, Canada Loren Hendrickson Boeing Canada Technology - Winnipeg Division, Winnipeg, Manitoba, R3J 3M6, Canada A three-dimensional finite element-based process model has been developed for the prediction of process-induced warpage during autoclave processing of large composite structures. This process model includes various sub-modules viz. input module, 3-D SIMCL
3D REFRACTION COMPUTED TOMOGRAPHY APPLIED TO METAL MATRIX COMPOSITES Bernd R. Müller, Axel Lange, Michael Harwardt, Manfred P. Hentschel, Bernhard Illerhaus, Jürgen Goebbels, Joachim Bamberga, Falko Heutlinga Federal Institute for Materials Research and testing (BAM), Germany a MTU Aero Engines, Germany For the first time Metal Matrix Composites (MMC) have been investigated by 3D Computed Tomography combined with enhanced interface contrast due to X-ray refraction. X-ray refraction is a relatively new approach for the characterization of advanced ma...
3D SPLINE VARIATIONAL ANALYSIS OF A COMPOSITE DOUBLE-LAP SHEAR JOINT Gregory A. Schoeppner, David H. Mollenhauer Air Force Research Laboratory, AFRL/MLBC, Wright-Patterson AFB, OH 45433 and Endel Iarve University of Dayton Research Institute, Dayton, OH 45469 Adhesive bonding has been used to join or repair metallic and/or composite structural components to achieve or restore their designed structural stiffness and strengths. It has been demonstrated in numerous programs over many years that the critical in...
3-D WEAVING OF EXOTIC FIBERS:LESSONS LEARNED AND SUCCESS ACHIEVED Dr. Keith Sharp, Dr. Alexander Bogdanovich 3TEX Inc., 109 MacKenan Dr, Cary NC 27511 3-D orthogonal woven preforms offer potential benefits to composites beyond the well- established improvements to delamination suppression, impact resistance and damage tolerance. The ?¡ãZ?¡À yarns in their architecture not only limit matrix crack growth
3D WEAVING: WHAT, HOW, AND WHERE Larry Dickinson, Mansour Mohamed and Alexander Bogdanovich 3TEX, Inc. 10 17 Main Campus Drive, Suite 3200, Raleigh, NC 27606 There have been many publications on 3D Weaving, and there are numerous patents on a variety of devices that may be used to make a 3D Woven structure. The majority of the 3D woven products that are currently commercially available are formed by a 2D we...
3-D WOVEN PI PREFORM JOINTS: AN ENABLING TECHNOLOGY FOR LARGE COMPOSITE STRUCTURE Ronald P. Schmidt, Shaw M. Lee, and Lee M. Cooke Lockheed Martin Aeronautics Company, Fort Worth, TX Joints are typically a weak link in composite structures, especially when subjected to any out of plane loading as occurs from fuel pressure in a wing, kick loads at terminations, skin buckling, or bending of a curved section. This particular loading pers
3D-BRAIDED TEXTILE PREFORMS ¡V FROM VIRTUAL DESIGN TO HIGH-PERFORMANCE-BRAID Jan Stueve, Thomas Gries Institut fuer Textiltechnik, RWTH Aachen University, Aachen, Germany Narciso Tolosana Enrech Department of Mechanical Engineering, University of Zaragoza, Zaragoza, Spain Among various textile processes for the production of textile reinforcement structures, 3D-braiding is a quite young technology that enables the production of near-net-shape textile preforms without generating waste. First applications of 3D-braids for...
3D-REINFORCEMENT OF COMPOSITE T-JOINTS BY MEANS OF ROBOT ASSISTED STITCHING TECHNOLOGY ¢X¢X ¢X ¢X (0) 89 607 22966 * Germany, Manuel.Herkt@eads.net, Peter.Middendorf@eads.net, Marinus.Schouten@eads.net, Phone: +49 (0) 89 607 27993, +49 (0) 89 607 26595, +49 (0) 89 607 22966 +EADS Military Aircraft, MT212, 81663 Munich, Germany, Christian.Less@eads.com Phone: +49 (0) 89 607 38189 * Fraunhofer Institut fur Kurzzeitdynamik, Ernst-Mach-Institut (EMI), Eckerstrase 4 79104 Freiburg, Germany, Werner.Riedel@emi.fhg.de, Phone: +49 (0) 761 2714 335 #University of Stuttgart, Institute of Aircraft Design, Pfaffenwaldring 31, 70569 Stuttgart, Germany, Drechsler@ifb.uni-stuttgart.de, Phone: +49 (0) 711 685 2402 Focus of this paper is to show the manufacturing of reinforced T-joints and give a short outlook on their performance under dynamic strength testing in a specially designed testing facility. Another aspect is the strain rate dependence of the tested sa...
900°F Glass Transition Temperature Material for Structural Composites and High Temperature Composite Tooling Applications Lincoln, McHale, Jurek, Hout, Curliss P2SITM 900HT composite prepreg system exhibits a glass transition temperature of 900°F (482°C) and excellent mechanical strength retention above 400°C. Void free composites are easily fabricated into structural components using a variety of reinforceme...
A 3D Abaqus Toolkit for Fire Response Prediction of Composite Sandwich Structure Luo, Lua, Chen, Shi A thermo-mechanical structural response prediction and fire simulation is developed by enhancing, packaging, and integrating our existing solution modules as an add-on toolkit for commercial finite element solvers such as ABAQUS. Current state-of-the-a...
A 3-D PERCOLATION MODEL FOR CONDUCTIVE PARTICULATE COMPOSITES D.L. Dummer P.E. & , D.W. Radford PhD. Composite Materials, Manufacture, & Structures Laboratory (970) 491-8677 Colorado State University Mechanical Engineering Fort Collins, CO 80523-1374 Percolation in particulate filled composites has not been adequately simulated in a 3D continuum space. The physical attributes of these two-phase materials are not well characterized by the approaches of classical percolation theory and thus, predic...
Technical Papers
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