论文部分内容阅读
基于弹性力学空间轴对称问题的通解，研究了短纤维增强复合材料中纤维端部的轴对称币形和柱形界面裂纹尖端的应力奇异性，得到了裂纹尖端附近的奇异应力场．研究结果表明，这两种轴对称界面裂纹尖端的应力奇异性相同，并且与平面应变状态下相应模型的应力奇异性一致，材料性能对裂纹尖端附近奇异应力场的影响可用三个组合参数描述
Based on the general solution to the axisymmetric problem of elastic mechanics, the stress singularity of the crack tip at the axial symmetry of the fiber ends and the cylindrical interface in short fiber reinforced composites was studied. The singular stress field near the crack tip was obtained. The results show that the stress singularities at the crack tip of the two kinds of axisymmetric interface are the same and are consistent with the stress singularity of the corresponding model in the plane strain state. The effect of material properties on the singular stress field near the crack tip can be described by three combination parameters