| 缝纫复合材料单向板面内力学性能的试验研究 |
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| 引用本文： | 魏玉卿, 王放, 张俊乾. 缝纫复合材料单向板面内力学性能的试验研究[J]. 固体力学学报, 2009, 30(5): 444-449. |
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| 作者姓名： | 魏玉卿 王放 张俊乾 |
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| 作者单位： | 南京电子技术研究所,南京,210039; 西南大学材料科学与工程学院,重庆,400715; 上海市应用数学和力学研究所,上海,200072 |
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| 基金项目： | 国家自然科学基金项目 |
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| 摘 要： | 对缝纫复合材料单向板在单向拉伸载荷作用下的面内力学性能进行试验研究,给出了缝纫密度、缝纫线直径对复合材料单向板面内拉伸强度的影响规律.研究发现复合材料的破坏模式与缝纫密度有关,对于中低密度缝纫的单向板其破坏模式为纤维断裂,而对于高密度缝纫的单向板其破坏模式为复合材料撕裂破坏.并从复合材料细观结构层次上揭示了破坏模式和拉伸强度与缝纫密度之间的内在关系.
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| 关 键 词： | 缝纫 复合材料 拉伸强度 破坏模式 细观结构 |
EXPERIMENTAL STUDY FOR THE IN-PLANE MECHANICAL PROPERTIES OF STITCHED COMPOSITE LAMINATES |
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| EXPERIMENTAL STUDY FOR THE IN-PLANE MECHANICAL PROPERTIES OF STITCHED COMPOSITE LAMINATES[J]. Chinese Journal of Solid Mechanics, 2009, 30(5): 444-449. |
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| Authors: | Yuqing Wei Fang Wang Junqian Zhang |
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| Abstract: | The in-plane mechanical properties of stitched uniaxial composite laminates under uniaxial tensile loading are investigated experimentally. The effects of the stitch density and diameter of stitching thread on the in-plane tensile strength are obtained. The study shows that the failure mode is connected with stitch density: fiber breakage is main failure mode when stitch density is low, while when the stitch density is very high,the failure mode is splitting of the composite laminate. The internal relations of stitch density with failure mode and tensile strength are uncovered on the microstructure scale. |
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| Keywords: | stitch composite tensile strength failure mode microstructure |
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