| 纤维端头裂纹对复合材料有效性能的影响 |
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| 引用本文： | 杨庆生,陈浩然,等.纤维端头裂纹对复合材料有效性能的影响[J].大连理工大学学报,1992,32(6):664-669. |
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| 作者姓名： | 杨庆生 陈浩然 |
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| 作者单位： | 大连工学院工程力学研究所
(杨庆生，陈浩然)，大连工学院工程力学研究所(唐立民) |
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| 摘 要： | 利用自洽有限元法研究了在纤维端点界面脱粘的短纤维复合材料的有弹弹性性能问题，计算了含有纤维端头裂纹的单向短纤维复合材料的有效纵向拉伸模量和纵向剪切模量，并分析了体分比，刚度比，长径比等物理，几何因素的影响，通过与现有结果的比较，证实了本文结果的合理性，研究表明，纤维端头裂纹对效纵向拉伸模量和剪切模量均有明显的影响。
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| 关 键 词： | 复合材料 裂纹 界面脱粘 有效性能 |
Effects of fiber-end crack on effective properties of composites |
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| Yang Qingsheng,Chen Haoran,Tang Limin.Effects of fiber-end crack on effective properties of composites[J].Journal of Dalian University of Technology,1992,32(6):664-669. |
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| Authors: | Yang Qingsheng Chen Haoran Tang Limin |
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| Abstract: | The paper researches into the effective properties of short fiber composite with the fiber-end debonding. The self-consistent finite element method is used to evaluate longitudinal effective Young's modulus and shear modulus for unidirectional fiber composite containing the fiber-end crack. Some comparative results are discussed. It is shown that the effective properties are considerably affected by fiber-end carck. |
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| Keywords: | composite materials cracks stiffness predictions/self-consistent FEM interface debonding effective properties |
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