NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Molecular dynamics simulation of propagating cracksSteady state crack propagation is investigated numerically using a model consisting of 236 free atoms in two (010) planes of bcc alpha iron. The continuum region is modeled using the finite element method with 175 nodes and 288 elements. The model shows clear (010) plane fracture to the edge of the discrete region at moderate loads. Analysis of the results obtained indicates that models of this type can provide realistic simulation of steady state crack propagation.
Document ID
19820050323
Document Type
Reprint (Version printed in journal)
Authors
Mullins, M. (Polyatomics Research, Inc. Mountain View, CA, United States)
Date Acquired
August 10, 2013
Publication Date
June 1, 1982
Publication Information
Publication: Scripta Metallurgica
Volume: 16
Subject Category
STRUCTURAL MECHANICS
Funding Number(s)
CONTRACT_GRANT: NCC2-160
Distribution Limits
Public
Copyright
Other