非均质材料中的吸引裂纹和排斥裂纹
Attractive and repulsive cracks in a heterogeneous material
摘要：
本文对非均匀二维弹性脆性材料在单轴应力作用下相互作用的裂纹扩展路径进行了实验研究。对于一个给定的初始裂纹组合几何形状，我们观察到两种类型的裂纹路径：第一种对应于排斥，然后是裂纹一端的吸引和另一端的尖端到尖端的吸引。第二种是纯粹的吸引力。在给定的样品中，仅观察到一种裂纹路径类型。因此，两种类型之间的选择似乎是一个统计的集体过程。
英文摘要：
We study experimentally the paths of an assembly of cracks growing in interaction in a heterogeneous two-dimensional elastic brittle material submitted to uniaxial stress. For a given initial crack assembly geometry, we observe two types of crack path. The first one corresponds to a repulsion followed by an attraction on one end of the crack and a tip to tip attraction on the other end. The second one corresponds to a pure attraction. Only one of the crack path type is observed in a given sample. Thus, selection between the two types appears as a statistical collective process.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
