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Title:On terminal crack velocities in brittle materials
Author(s):Sadd, Martin Howard
Subject(s):Terminal Crack Velocities
Brittle Materials
Abstract:Using an energy analysis, the limiting or terminal crack velocity of a semi-infinite crack in an infinite medium is investigated. It is proposed that a crack will run in such a manner as to minimize the Lagrangian function of the surrounding medium. Contributions from plastic work are also included in the analysis. For a crack with a constant stress intensity factor, the terminal crack velocity is found to be 35% of the dilatational wave speed. Plastic work has only a slight effect on the final result, tending to increase the terminal speed.
Issue Date:1967-08
Publisher:Department of Theoretical and Applied Mechanics. College of Engineering. University of Illinois at Urbana-Champaign
Series/Report:TAM R 300
Genre:Technical Report
Sponsor:American Iron and Steel Institute, Committee on Properties of Iron and Steel
Rights Information:Copyright 1967 Board of Trustees of the University of Illinois
Date Available in IDEALS:2021-11-04

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  • Technical Reports - Theoretical and Applied Mechanics (TAM)
    TAM technical reports include manuscripts intended for publication, theses judged to have general interest, notes prepared for short courses, symposia compiled from outstanding undergraduate projects, and reports prepared for research-sponsoring agencies.

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