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 by MechMet can be created with the Neper package or any other method that produces a 10-node, tetrahedral, serendipity element. Formatted output files are automatically generated for visualization with Paraview or VisIt. This paper presents an overview of the MechMet package and its application to polycrystalline materials of both cubic and hexagonal structures.

多晶微观结构的细节通常会影响单调和循环载荷下屈服和应变局部化的早期阶段，尤其是在弹性各向异性材料中。一个新的软件包MechMet（机械指标）提供了一个方便的有限元工具，用于解决多晶中的弹性场方程，并结合微观结构引起的异质性进行了研究。模拟的位移场用于计算几个机械指标，例如应变和应力张量，方向刚度，相对施密特因子以及方向强度与刚度之比。可以使用Neper创建MechMet所需的虚拟多晶有限元网格封装或任何其他方法可生成10节点四面体巧合元素。格式化的输出文件会自动生成，以使用Paraview或VisIt进行可视化。本文概述了MechMet封装及其在立方和六边形结构的多晶材料中的应用。