Options of decomposition of tensors of full stresses in modeling the processes of elastic-plastic deformation of auxetic media with cubic symmetry of properties

PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019 Pub Date : 2019-11-19 DOI:10.1063/1.5132050

M. Krivosheina, E. Tuch, S. Kobenko

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Abstract

The paper presents the results of calculations of the elastoplastic deformation of the target using two variants of the decomposition of the total stress tensors into parts, corresponding to the volume strain and shear strain. The processes of elastoplastic deformation of a target made of a single-crystal VZhM8 alloy under shock loading by a steel projectile are simulated. The influence on the results of numerical simulation of the application of two variants of the decomposition of the total stress tensors for the target of a single-crystal alloy VZhM8, possessing auxeticity in the direction of loading, is shown.The paper presents the results of calculations of the elastoplastic deformation of the target using two variants of the decomposition of the total stress tensors into parts, corresponding to the volume strain and shear strain. The processes of elastoplastic deformation of a target made of a single-crystal VZhM8 alloy under shock loading by a steel projectile are simulated. The influence on the results of numerical simulation of the application of two variants of the decomposition of the total stress tensors for the target of a single-crystal alloy VZhM8, possessing auxeticity in the direction of loading, is shown.

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性质为三次对称的塑性介质弹塑性变形过程中全应力张量分解的选择

本文给出了用总应力张量分解的两种方法计算目标弹塑性变形的结果，这两种方法分别对应于体积应变和剪切应变。模拟了单晶VZhM8合金靶在钢弹冲击载荷作用下的弹塑性变形过程。给出了在加载方向上具有互助性的单晶合金VZhM8靶的总应力张量分解的两种变体对数值模拟结果的影响。本文给出了用总应力张量分解的两种方法计算目标弹塑性变形的结果，这两种方法分别对应于体积应变和剪切应变。模拟了单晶VZhM8合金靶在钢弹冲击载荷作用下的弹塑性变形过程。给出了在加载方向上具有互助性的单晶合金VZhM8靶的总应力张量分解的两种变体对数值模拟结果的影响。

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PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019

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