热震破裂的自相似性和标度性
Self-similarity and scaling of thermal shock fractures
摘要：
用二维边界元法数值求解了半空间表面热冲击载荷下裂纹斑图形成问题。数值模拟结果与100-200随机同时增长和相互作用的裂纹被用来获得裂纹长度和间距的比例关系。数值结果表明，这种具有准静态裂纹扩展的斑图形成过程是不稳定的，在某一点上，过剩的能量导致最长裂纹之一的不稳定扩展。从数值结果中也确定了不稳定性的发生。
英文摘要：
The problem of crack pattern formation due to thermal shock loading at the surface of half-space is solved numerically using two-dimensional boundary element method. The results of numerical simulations with 100-200 random simultaneously growing and interacting cracks are used to obtain scaling relations for crack length and spacing. The numerical results predict that such process of pattern formation with quasi-static crack growth is not stable and at some point the excess energy leads to unstable propagation of one of the longest crack. The onset of instability has also been determined from numerical results.
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。
