Crack-tip blunting and crack-opening displacement under large-scale yielding
Crack-tip blunting and crack-opening displacement under large-scale yielding
复制标题
大屈服下裂纹尖端钝化和裂纹张开位移
DOI：
--
复制
发表时间：
1976
期刊：
影响因子：
--
通讯作者：
T. Shoji
中科院分区：
文献类型：
--
作者：
T. Shoji
再结晶法是一种新发展起来的测量塑性应变的方法，它使直接观察裂纹尖端附近的强烈应变区成为可能。用这种方法得到的区域形状和塑性应变分布与莱斯和约翰逊的理论结果相似。还证实了大规模屈服条件下裂纹尖端的渐进性钝化，即COD，与裂纹尖端附近这些强烈应变区的扩展密切相关。
AbstractThe recrystallization method, a newly developed technique for measuring plastic strain, makes it possible to observe directly the intense strain region near the crack tip. The shape of this zone and the plastic strain distribution obtained by this method are similar to the theoretical findings of Rice and Johnson. It is also confirmed that progressive crack-tip blunting under large-scale yielding, i.e. COD, is closely related to the extension of these regions of intense strain near the crack tip.