Stress wave radiation from brittle crack extension by molecular dynamics and FEM

Date issued

2013

Journal Title

Journal ISSN

Volume Title

Publisher

University of West Bohemia

Abstract

We present results for molecular dynamic (MD) and finite element (FEM) simulations in 3D bcc iron crystals, with embedded central through crack (001)[110] of Griffith type, loaded in mode I. The sample geometry and border conditions in MD were chosen in such a way as to invoke a cleavage crack extension. Acoustic emission (AE) sources caused by the crack were analysed on both the atomistic and continuum level with FEM.

Description

Subject(s)

molekulární dynamika, simulace konečných prvků, bcc krystaly železa

Citation

Applied and Computational Mechanics. 2013, vol. 7, no. 1, p. 23-30.