AnisoBicrystal_Schmid_Analyzer

Zenodo (CERN European Organization for Nuclear Research)

Abstract

This Python code calculates classical and anisotropic effective Schmid factors for bicrystal systems. It was developed to analyze slip activation near grain boundaries by combining crystallographic slip geometry with an anisotropic elastic incompatibility-stress model. Based on: Tiba et al., "Incompatibility stresses at grain boundaries in Ni bicrystalline micropillars analyzed by an anisotropic model and slip activity", Acta Materialia 83 (2015) 227–238. Supported crystal-structure front ends: BCC : cubic stiffness, {110}<111>, {112}<111>, {123}<111> FCC : cubic stiffness, {111}<110> HCP : hexagonal stiffness, HCP slip and twin systems in Miller-Bravais notation The user can select the crystal structure and define key model parameters at the beginning of the script, including Euler angles, elastic constants, grain volume fraction, grain boundary geometry, loading axis and magnitude, and optional plastic slip activity.

Authors 1

1. Zhuocheng Xie corresponding Aachen

   RWTH Aachen University

   Affiliation as printed

   RWTH Aachen University