短纤维对基体微裂纹扩展的阻滞效应分析
MECHANICS OF CRACK ARREST IN SHORT FIBER REINFORCED COMPOSITES
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摘要: 本文用细观力学方法分析短纤维对基体微裂纹扩展的阻滞效应。考虑了单向和随机各向两类短纤维增强复合材料,用应力强度因子和应变能密度因子的变化来表征纤维阻滞裂纹扩展的效应。本文对三种短纤维复合材料作出了具体计算。Abstract: A theoretical analysis for crack arrest in short-fiber reinforced composites is presented in this paper.Both unidirectional and random orientational short fibers in the matrix are considered.Stress intensity factor and strain energy density factor are used to show the crack arresting effects.
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Key words:
- short-fiber reinforced composites /
- microcrack arrest
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