A damage initiation criterion for a class of viscoelastic solids
A damage initiation criterion for a class of viscoelastic solids
复制标题
一类粘弹性固体的损伤萌生准则
DOI:
10.1098/rspa.2018.0064
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Kannan, K.
中科院分区:
文献类型:
--
作者:
Alagappan, P.;Rajagopal, K. R.;Kannan, K.
We extend the methodology introduced for the initiation of damage within the context of a class of elastic solids to a class of viscoelastic solids (Alagappanet al.2016Proc. R. Soc. Lond. A: Math. Phys. Eng. Sci.472, 20160231. (doi:10.1098/rspa.2016.0231)). In a departure from studies on damage that consider the body to be homogeneous, with initiation of damage being decided by parameters that are based on a quantity such as the strain, that requires information concerning a special reference configuration, or the use of ad hoc parameters that have no physically meaningful origins, in this study we use a physically relevant parameter that is completely determined in the current deformed state of the body to predict the initiation of damage. Damage is initiated due to the inhomogeneity of the body wherein certain regions in the body are unable to withstand the stresses, strains, etc. The specific inhomogeneity that is considered is the variation of the density in the body. We consider damage within the context of the deformation of two representative viscoelastic solids, a generalization of a model proposed by Gent (1996Rubber Chemistry and Technology69, 59–61. (doi:10.5254/1.3538357)) for polymeric solids and a generalization of the Kelvin–Voigt model. We find that the criterion leads to results that are in keeping with the experiments of Gent & Lindley (1959Proc. R. Soc. Lond. A: Math. Phys. Eng. Sci.249, 195–205. (doi:10.1098/rspa.1959.0016)).
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影响因子:
2.6
作者:
Alagappan, P;Rajagopal, KR;Kannan, K
通讯作者:
Kannan, K
影响因子:
2.7
作者:
P. Alagappan;K. Rajagopal;K. Kannan
通讯作者:
K. Kannan
DOI:
10.1098/rspa.2016.0231
发表时间:
2016
期刊:
Physical and Engineering Sciences
影响因子:
--
作者:
Alagappan, P.;Kannan, K.;Rajagopal, K. R.
通讯作者:
Rajagopal, K. R.
影响因子:
1.5
作者:
K. Volokh
通讯作者:
K. Volokh
影响因子:
3.4
作者:
BUECHE, AM
通讯作者:
BUECHE, AM