Mechanical Metrics of Virtual Polycrystals (MechMet)

Mechanical Metrics of Virtual Polycrystals (MechMet)
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虚拟多晶的力学指标 (MechMet)

DOI:
10.1007/s40192-021-00206-7
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发表时间:
2021
影响因子:
3.3
通讯作者:
Echlin, McLean P.
Echlin, McLean P.
中科院分区:
材料科学3区
文献类型:
--
作者:
Dawson, Paul R.;Miller, Matthew P.;Pollock, Tresa M.;Wendorf, Joe;Mills, Leah H.;Stinville, Jean Charles;Charpagne, Marie Agathe;Echlin, McLean P.

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多晶微结构的细节往往影响单调和循环载荷下的屈服和应变局部化的早期阶段,特别是在弹性各向异性材料。一个新的软件包,MechMet(力学度量)提供了一个方便的有限元工具,结合微观结构引起的非均匀性的调查,在多晶体中的弹性场方程求解。模拟的位移场被用来计算几个力学指标,如应变和应力张量,方向刚度,相对施密德因子,和方向的强度刚度比。MechMet所需的虚拟多晶体有限元网格可以使用Neper软件包或任何其他产生10节点四面体意外元素的方法创建。使用ParavieworVisIt可以自动生成可视化的输出文件。本文概述了MechMet软件包及其在立方和六方结构多晶材料中的应用。
The details of polycrystalline microstructure often influence the early stages of yielding and strain localization under monotonic and cyclic loading, particularly in elastically anisotropic materials. A new software package,MechMet(mechanical metrics) provides a convenient finite element tool for solving field equations for elasticity in polycrystals in conjunction with investigations of microstructure-induced heterogeneity. The simulated displacement field is used to compute several mechanical metrics, such as the strain and stress tensors, directional stiffness, relative Schmid factor, and the directional strength-to-stiffness ratio. The virtual polycrystal finite element meshes needed byMechMetcan be created with theNeperpackage or any other method that produces a 10-node, tetrahedral, serendipity element. Formatted output files are automatically generated for visualization withParavieworVisIt. This paper presents an overview of theMechMetpackage and its application to polycrystalline materials of both cubic and hexagonal structures.
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DOI: --
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期刊:
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