A random field model for anisotropic strain energy functions and its application for uncertainty quantification in vascular mechanics
A random field model for anisotropic strain energy functions and its application for uncertainty quantification in vascular mechanics
复制标题
各向异性应变能函数的随机场模型及其在血管力学不确定性量化中的应用
DOI:
10.1016/j.cma.2018.01.001
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发表时间:
2018
影响因子:
7.2
通讯作者:
Guilleminot, J.
中科院分区:
文献类型:
--
作者:
Staber, B.;Guilleminot, J.
This paper deals with the construction of random field models for spatially-dependent anisotropic strain energy functions indexed by complex geometries. The approach relies on information theory and the principle of maximum entropy, which are invoked in order to construct the family of first-order marginal probability distributions in accordance with fundamental constraints such as polyconvexity, coerciveness and consistency at small strains. We then address the definition of a sampling methodology able to perform on domains that are non-homotopic to a sphere, with the aim to generate the non-Gaussian random fields on non-simplified geometries—such as patient-specific geometries in computational biomechanics. The algorithm is based on the construction of a diffusion field that involves local geometrical features of the manifolds defining domain boundaries. We finally present numerical applications on vascular tissues, including the case of an arterial wall defined by real patient-specific data.
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DOI:
10.1137/120898346
发表时间:
2013
期刊:
Multiscale Model. Simul.
影响因子:
--
作者:
J. Guilleminot;Christian Soize
通讯作者:
Christian Soize
DOI:
10.1002/cnm.2549
发表时间:
2013
影响因子:
2.1
作者:
E. Marchandise;C. Geuzaine;J. Remacle
通讯作者:
J. Remacle
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
影响因子:
1.6
作者:
D. Brands;A. Klawonn;O. Rheinbach;J. Schröder
通讯作者:
J. Schröder
DOI:
--
发表时间:
2017
期刊:
影响因子:
--
作者:
B. Staber;J. Guilleminot
通讯作者:
J. Guilleminot