Stochastic multiscale modeling with random fields of material properties defined on nonconvex domains
Stochastic multiscale modeling with random fields of material properties defined on nonconvex domains
复制标题
在非凸域上定义材料属性随机场的随机多尺度建模
DOI:
10.1016/j.mechrescom.2019.01.008
复制
发表时间:
2019
影响因子:
2.4
通讯作者:
Guilleminot, J.
中科院分区:
文献类型:
--
作者:
Chu, S.;Guilleminot, J.
A methodology to model and generate spatially dependent material uncertainties in stochastic multiscale analysis is proposed. The approach consists in defining non-Gaussian random fields through transport maps acting on Gaussian fields, defined by appropriately filtering a Gaussian white noise. In contrast to standard covariance-based representations, the proposed strategy can efficiently accommodate the case of fields with anisotropic correlation structures on nonconvex domains. This case is especially relevant to computational homogenization involving random microstructures with connected phases. The theoretical stochastic framework is first laid down. A numerical application associated with a polydisperse random microstructure is then presented to illustrate various aspects of the method.
登录
查看更多内容
DOI:
10.1098/rspa.2017.0858
发表时间:
2018
期刊:
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
影响因子:
--
作者:
L. A. Mihai;T. Woolley;A. Goriely
通讯作者:
A. Goriely
DOI:
10.1016/j.cma.2018.12.036
发表时间:
2019-04
影响因子:
7.2
作者:
B. Staber;J. Guilleminot;Christian Soize;J. Michopoulos;A. Iliopoulos
通讯作者:
B. Staber;J. Guilleminot;Christian Soize;J. Michopoulos;A. Iliopoulos
影响因子:
2.6
作者:
Christian Soize
通讯作者:
Christian Soize
DOI:
--
发表时间:
2018
期刊:
影响因子:
--
作者:
K. Acton;S. Baxter
通讯作者:
S. Baxter
DOI:
10.1002/zamm.201500255
发表时间:
2017
期刊:
ZAMM ‐ Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik
影响因子:
--
作者:
B. Staber;J. Guilleminot
通讯作者:
J. Guilleminot