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《Mechanics and Engineering》 2005-01
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ON IN-PLANE ELASTIC MODULUS OF STITCHED COMPOSITE LAMINATES

WEI Yuqing(Department of Mechanics, Qingdao Institute of Architecture and Engineering, Qingdao 266033, China)ZHANG Junqian(Institute of Applied Mathematics and Mechanics of Shanghai University, Shanghai 200072, China)  
A theoretical approach is presented for analyzing the in-plane mechanical properties of the stitched composite laminates based on the microstructures of fibers near the stitch holes. The geometrical characteristics of the distorted fibers in the stitch unit cells are considered. The elastic constants and stiffness matrices of lamina and laminate are obtained finally. The effects of stitching parameters on the equivalent elastic modulus of the laminates are studied using the finite element analysis. The results show that the material properties of stitched composite laminates are inhomogeneous due to stitching, and the equivalent elastic modulus of the laminates decreases with the increase of the stitch density and thread diameter.
【CateGory Index】: TB332
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【References】
Chinese Journal Full-text Database 3 Hits
1 LIU Bingshan,YAN Ying~*(Aircraft Design and Research Institute,Beijing University of Aeronautics and Astronautics,Beijing100083,China);New method on the elastic properties of stitched composites——Flow field model Ⅰ: Elastic constants calculation of the stitched laminar[J];Acta Materiae Compositae Sinica;2006-04
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【Co-references】
Chinese Journal Full-text Database 10 Hits
1 Cheng Xiaoquan (School of Aeronautics Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100083, China) Zhao Long (Beijing Aeronautical Manufacture Technology Research Institute, Beijing, 100024, China) Zhang Yining (Shenyang Institute of Aircraft Design and Development, Shenyang, 110035, China);Properties of stitched composite laminates——the principle properties of simple laminates[J];Journal of Beijing University of Aeronautics and Astronautics;2003-11
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5 YAO Chengzhao,FENG Zhihai,XU Bin(Beijing Space Research Institute of Material & Processing Technology,Beijing 100076,China);A Study of Whole Stitch Relay on Mould Processing Technologyof Composites Fabric Reinforcements[J];JOURNAL OF MATERIALS ENGINEERING;1999-07
6 LI Chen,XU Xi-wu(Research Institute of Structures and Strength,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China);Prediction of In-plane Tensile Strength of Stitched Laminates[J];Journal of Materials Science and Engineering;2005-06
7 JIN Chun-hua,ZHOU Chun-wei,WANG Xin-wei(College of Aerospace Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China);Meso-Mechanical Analysis of Stitching Laminated Composites[J];Journal of Materials Science and Engineering;2006-04
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9 DENG Chuan bin , ZHANG Jun qian, LI Ping (1 Resource & Environment Science College,Chongqing University, Chongqing 400044,China; 2 Key Lab of Biomechanics & Tissue Engineering Under Nationa Education Ministration, Chongqing University, Chongqing;Effect of Stitching on the In-plane Tensile Strength of Stitched Composite Laminates[J];Journal of Chongqing University(Natural Science Edition);2002-01
10 WEI Yu qing 1, ZHANG Jun qian 1, WANG Hai 2 (1.College of Resource & Environment Science, Chongqing University, Chongqing 400044, China; 2. Shenyang Aircraft Design Institute, Shenyang 110035, China);Analytical Model for the In-plane Properties of Stitched Composite Laminates[J];Journal of Chongqing University(Natural Science Edition);2002-12
【Secondary References】
Chinese Journal Full-text Database 3 Hits
1 Yu Qianqian,Chen Gang,Zheng Zhicai (CNGC Institute 53,Jinan 250031,China);APPLICATION AND REVIEW OF RESEARCH IN STICHING TECHNOLOGY FOR COMPOSITES[J];Engineering Plastics Application;2009-05
2 Niu Tian-jun,Chen Nan-liang(Collage of Textile,Donghua University,Shanghai 201620,China);RESEARCH OF THE DRAWING AND ABRASION PROPERTY OF SEWING YARN USED IN COMPOSITES[J];Fiber Reinforced Plastics/Composites;2008-02
3 YU Zhi-guo1,CHAI Ya-nan2,SONG Bi-feng1(1 College of Aeronautics,Northwestern Polytechnical University,Xi'an 710072,China;2 Aircraft Strength Research Institute of China,Xi'an 710065,China);Experimental Study on Strength of Non-stitched/Stitched Skin-to-Stiffener Structures[J];Journal of Materials Engineering;2008-11
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