On the micromechanics of void mediated failure in HCP crystals

On the micromechanics of void mediated failure in HCP crystals
复制标题

HCP 晶体中空洞介导失效的微观力学

DOI:
10.1016/j.jmps.2022.104923
复制
发表时间:
2022
影响因子:
5.3
通讯作者:
Benzerga, A. Amine
Benzerga, A. Amine
中科院分区:
工程技术2区
文献类型:
--
作者:
Indurkar, Padmeya P.;Joshi, Shailendra P.;Benzerga, A. Amine

文献摘要

参考文献

被引文献

相似文献

本文采用三维空胞法研究了初始平坦空洞对六方晶体有效行为的影响。使用一组本构关系,占滑移和孪生的结晶基质。在某些材料中,硬币形裂纹的极限情况更好地代表了初始空隙的形成。单元边界条件使得空隙间韧带的内部颈缩或空隙撞击是唯一可能的失效模式。细胞的整体行为进行了分析,在各种应力状态和两个加载方向,特别注意到损伤相关的微观结构变量的演变。特别强调的是放在晶体学方面的空隙生长和合并,这往往被证明是难以代表使用唯象各向异性塑性模型。
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.
含有任意椭圆体空隙的塑性各向异性固体的古尔森型准则
DOI: --
发表时间: 2015
期刊:
影响因子: --
作者:
L. Morin;J. Leblond;D. Kondo
通讯作者: D. Kondo
DOI: 10.1016/j.jmps.2016.04.023
发表时间: 2016-09
影响因子: 5.3
作者:
Balaji Selvarajou;B. Kondori;A. Benzerga;S. Joshi
通讯作者: Balaji Selvarajou;B. Kondori;A. Benzerga;S. Joshi
DOI: 10.1016/j.actamat.2015.12.034
发表时间: 2016-04-01
期刊: ACTA MATERIALIA
影响因子: 9.4
作者:
Pineau, A.;Benzerga, A. A.;Pardoen, T.
通讯作者: Pardoen, T.
DOI: 10.1016/j.cma.2016.06.005
发表时间: 2016-10
影响因子: 7.2
作者:
S. Kweon;B. Sagsoy;A. Benzerga
通讯作者: S. Kweon;B. Sagsoy;A. Benzerga
DOI: 10.1016/j.actamat.2011.12.002
发表时间: 2012-02-01
期刊: ACTA MATERIALIA
影响因子: 9.4
作者:
Li, Bin;Joshi, Shailendra P.;Mukai, T.
通讯作者: Mukai, T.