Local and non-local modeling aspects of three-dimensional cracks growth initiation
Local and non-local modeling aspects of three-dimensional cracks growth initiation
复制标题
三维裂纹扩展的局部和非局部建模
DOI:
10.1007/s10704-020-00424-8
复制
发表时间:
2020
影响因子:
2.5
通讯作者:
Rodin, Gregory J.
中科院分区:
文献类型:
--
作者:
Rodin, Gregory J.
Three-dimensional crack growth initiation is examined under the assumption that the crack front remains smooth. Two important modeling issues, specific to three-dimensional rather than two-dimensional cracks, are addressed. First, it is established that, at each point along the crack front, the velocity and configurational force are two-dimensional vectors, lying in the local normal plane. This allows one to generalize any two-dimensional crack growth criterion to three dimensions. Second, a simple mesoscopic model to account for along-the-front non-locality is proposed. This model eliminates pathological growth patterns ubiquitous to basic models applied to three-dimensional cracks. Further, the model is straightforward to use as it relies on standard fracture properties only.
DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
A. Movchan;Huajian Gao;J. Willis
通讯作者:
J. Willis
DOI:
--
发表时间:
2016
期刊:
影响因子:
--
作者:
R. Ballarini;G. Royer
通讯作者:
G. Royer