On the micromechanics of void mediated failure in HCP crystals
On the micromechanics of void mediated failure in HCP crystals
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HCP 晶体中空洞介导失效的微观力学
DOI:
10.1016/j.jmps.2022.104923
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发表时间:
2022
影响因子:
5.3
通讯作者:
Benzerga, A. Amine
中科院分区:
文献类型:
--
作者:
Indurkar, Padmeya P.;Joshi, Shailendra P.;Benzerga, A. Amine
Three-dimensional voided cell calculations are carried out to investigate the effect of initially flat voids on the effective behavior of hexagonal crystals. The crystalline matrix is described using a set of constitutive relations that account for slip and twinning. In some materials, the limiting case of penny-shaped cracks better represents incipient void formation. Cell boundary conditions are such that internal necking of the intervoid ligament or void impingement are the only possible failure modes. The overall behavior of the cell is analyzed under various stress states and two loading orientations, with special attention given to the evolution of damage-relevant microstructural variables. Particular emphasis is placed on crystallographic aspects of void growth and coalescence, which often prove difficult to represent using phenomenological anisotropic plasticity models.
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DOI:
--
发表时间:
2015
期刊:
影响因子:
--
作者:
L. Morin;J. Leblond;D. Kondo
通讯作者:
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影响因子:
5.3
作者:
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作者:
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DOI:
10.1016/j.cma.2016.06.005
发表时间:
2016-10
影响因子:
7.2
作者:
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通讯作者:
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影响因子:
9.4
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