Homogeneous stress–strain states computed by 3D-stress algorithms of FE-codes: application to material parameter identification
Homogeneous stress–strain states computed by 3D-stress algorithms of FE-codes: application to material parameter identification
复制标题
通过 FE 代码的 3D 应力算法计算均匀应力应变状态:在材料参数识别中的应用
DOI:
10.1007/s00366-013-0337-7
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发表时间:
2015
影响因子:
8.7
通讯作者:
Hartmann
中科院分区:
文献类型:
--
作者:
Krämer ;Rothe ;Hartmann
In view of code verification of finite element implementations and for material parameter identification purposes it is of interest to make use of stress algorithms developed for three-dimensional finite element computations. In the case of homogeneous deformations various boundary-conditions for given displacements or stresses are possible and define a sub-problem of three-dimensional stress–strain states, which are either one-, two- or three-dimensional. Examples are uniaxial tension/compression, plane stress conditions or biaxial tensile problems. Caused by the fact that the stress algorithms are strain-driven, the constraints of zero stresses in a specific direction lead for elastic and inelastic constitutive models to a particular system of differential-algebraic equations. How to treat such stress algorithms and how to solve the resulting system of differential-algebraic equations, which are developed for finite element programs, for specific stress and displacement boundary conditions is discussed in this article. Additionally, it is worked out that the consistent tangent operator is required in the same manner as in 3D-FE computations. The second topic treats the extension of the entire procedure for material parameter identification procedure applied to test data for different materials such as steel, rubber material and powder. In this respect, uniaxial tensile, biaxial tensile tests, and laterally constrained loading paths are exemplarily investigated. These investigations and the proposed procedure are applied for small and finite strain problems. In this investigation measure of the quality of identification is discussed as well.
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影响因子:
1.6
作者:
R. Mahnken;M. Johansson;K. Runesson
通讯作者:
K. Runesson
DOI:
--
发表时间:
2001
期刊:
影响因子:
--
作者:
A. Lion
通讯作者:
A. Lion
DOI:
10.1007/pl00010769
发表时间:
1998
期刊:
Forschung im Ingenieurwesen
影响因子:
--
作者:
R. Kreißig
通讯作者:
R. Kreißig
DOI:
--
发表时间:
1999
期刊:
影响因子:
--
作者:
P. Spellucci
通讯作者:
P. Spellucci
DOI:
--
发表时间:
1984
期刊:
影响因子:
--
作者:
W. Hoyer;J. W. Schmidt
通讯作者:
J. W. Schmidt