Delamination and Stitched Failure in Stitched Composite Joints

机译：缝合复合节点的分层和缝合失效

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The effect of stitches on the failure of a single lap joint configuration was determined in a combined experimental and finite element study. The experimental program was conducted to determine debond growth under static monotonic loading. The stitches were shown to delay the initiation of the debond and provide load transfer beyond the load necessary to completely debond the stitched lap joint. The experimentally determined debond length vs. applied load was used an input parameter in the finite element analysis of both configurations. The strain energy release rates at the debond front were calculated using plate finite elements. Nonlinear fastener elements were used to model the stitches and multipoint constraints were used to model the contact problem. Models of the unstitched configuration showed significant values of modes I and II across the width of the joint and showed that mode III is zero at the centerline but increases near the free edge. Models of the stitched configuration showed that the stitches were effective in reducing mode I to zero, but had less of an effect on modes II and III.

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作者
Glaessgen, E. H. ; Raju, I. S. ; Poe, C. C.;
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年度 1999
页码 1-28
总页数 28
原文格式 PDF
正文语种 eng
中图分类工业技术;
关键词
Delamination; Composite materials; Failure; Finite element method; Growth; Loads(Forces); Debonding(Materials);

机译：分层;复合材料;失效;有限元法;生长;载荷（力）;剥离（材料）;

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专利

1. Effects of stitch density and stitch thread thickness on mode II delamination properties of Vectran stitched composites [J] . J. Herwan, A. Kondo, S. Morooka Plastics, Rubber and Composites . 2014,第9期

机译：线迹密度和线迹厚度对Vectran缝合复合材料II型分层性能的影响
2. Effect of stitch density and stitch thread thickness on damage progression and failure characteristics of stitched composites under out-of-plane loading [J] . K.T. Tan, A. Yoshimura, N. Watanabe, Composites Science and Technology . 2013,第JANa期

机译：面外载荷下针迹密度和线迹厚度对缝合复合材料破坏进程和破坏特性的影响
3. Influence of Stitching Parameters on the Joint Strength of Welded-Stitched Composites [J] . Wittman L-M, Kleffel T., Mattner T., International Polymer Processing: The Journal of the Polymer Processing Society . 2018,第5期

机译：缝合参数对焊接复合材料的关节强度的影响
4. Delamination and stitch failure in stitched composite joints [C] . Glaessgen, E. H. In: AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference and Exhibit, 40th, St. Louis, MO, Apr. 12-15, 1999, Collection of Technical Papers. Vol. 1 (A99-24601 05-39), Reston, VA, American Institute of Aeronautics and Astro . 1999

机译：缝合复合接头的脱层和缝合不良
5. An investigation of mechanical behavior and failure mechanisms of composite T-joints with transverse stitching. [D] . Stickler, Patrick Bickford. 2001

机译：横向缝复合T型接头的力学行为和破坏机理研究。
6. Mechanical Performance of Unstitched and Silk Fiber-Stitched Woven Kenaf Fiber-Reinforced Epoxy Composites [O] . Yasir Khaleel Kirmasha, Mohaiman J. Sharba, Zulkiflle Leman, 2020

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7. Delamination Buckling of Kevlar and Twaron Stitched GlassEpoxy Composite Laminates by Experiments [O] . Madusudhana R Parlapalli, Kwok C Soh, Dong W Shu 2015

机译：通过实验分析Kevlar和Twaron缝合玻璃/环氧复合材料层合板的剥离

Delamination and Stitched Failure in Stitched Composite Joints

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