A LATIN-based model reduction approach for the simulation of cycling damage
A LATIN-based model reduction approach for the simulation of cycling damage
复制标题
用于模拟循环损伤的基于 LATIN 的模型简化方法
DOI：
10.1007/s00466-017-1523-z
复制
发表时间：
2018
影响因子：
4.1
通讯作者：
P. Ladevèze
中科院分区：
文献类型：
--
作者：
M. Bhattacharyya;A. Fau;U. Nackenhorst;D. Néron;P. Ladevèze
本文的目的是介绍一种考虑模型降阶的结构循环损伤寿命预测新方法。与经典的损伤计算增量格式不同，本文使用了一种非增量技术--拉丁方法作为求解框架。这种方法引入了一种PGD模型降阶技术，大大降低了计算成本。以循环荷载作用下的结构为例，将损伤视为各向同性，并考虑了微缺陷闭合效应。这里使用拉丁方法的困难来自于不能通过内部变量变换转换成线性关系的州法律。在这项工作中介绍了对这个问题的具体处理。
The objective of this article is to introduce a new method including model order reduction for the life prediction of structures subjected to cycling damage. Contrary to classical incremental schemes for damage computation, a non-incremental technique, the LATIN method, is used herein as a solution framework. This approach allows to introduce a PGD model reduction technique which leads to a drastic reduction of the computational cost. The proposed framework is exemplified for structures subjected to cyclic loading, where damage is considered to be isotropic and micro-defect closure effects are taken into account. A difficulty herein for the use of the LATIN method comes from the state laws which can not be transformed into linear relations through an internal variable transformation. A specific treatment of this issue is introduced in this work.
DOI：
10.1016/j.cma.2010.10.009
发表时间：
2011-01-15
影响因子：
7.2
作者：
Kerfriden P;Gosselet P;Adhikari S;Bordas S
通讯作者：
Bordas S