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Title: A Weibull brittle material failure model for the ABAQUS computer program

A Weibull brittle material failure model for the ABAQUS computer program A statistical failure theory for brittle materials that traces its origins to the Weibull distribution function is developed for use in the general purpose ABAQUS finite element computer program. One of the fundamental assumptions for this development is that Mode 1 microfractures perpendicular to the direction of the principal stress contribute independently to the fast fracture. The theory is implemented by a user subroutine for ABAQUS. Example problems illustrating the capability and accuracy of the model are given. 24 refs., 12 figs.
Authors:
Publication Date:
OSTI Identifier:5643325
Report Number(s):LA-12152-MS
ON: DE91016813
DOE Contract Number:W-7405-ENG-36
Resource Type:Technical Report
Data Type:
Research Org:Los Alamos National Lab., NM (United States)
Sponsoring Org:DOE; USDOE, Washington, DC (United States)
Country of Publication:United States
Language:English
Subject: 36 MATERIALS SCIENCE; 99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE; CERAMICS; FRACTURE PROPERTIES; FAILURES; PROBABILITY; GLASS; GRAPHITE; A CODES; BRITTLENESS; FINITE ELEMENT METHOD; MATHEMATICAL MODELS; CARBON; COMPUTER CODES; ELEMENTAL MINERALS; ELEMENTS; MECHANICAL PROPERTIES; MINERALS; NONMETALS; NUMERICAL SOLUTION 360203* -- Ceramics, Cermets, & Refractories-- Mechanical Properties; 360603 -- Materials-- Properties; 990200 -- Mathematics & Computers