Experimental relationship between equivalent plastic strain and constraint for crack initiation

Walter G. Reuter, Wilson R. Lloyd, Richard L. Williamson, James A. Smith, Jonathan S. Epstein

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The applicability of fracture mechanics data generated from standard fracture toughness specimens in predicting structural integrity is often a concern. For elastic-plastic conditions, a second parameter identified as `constraint' (hydrostatic stress divided by the equivalent stress) is being used to link different specimen/flaw configurations, thus providing a mechanism for using data generated from standard fracture toughness specimens to predict structural integrity. Much of the literature is concerned with the difference in constraint between specimens and a structure, while little effort is being given to investigating the sensitivity of the crack initiation process to constraint for a given material. This paper presents experimental results relating crack initiation processes to constraint for a ferritic steel and an aluminum-based alloy.

Original languageEnglish
Title of host publicationASTM Special Technical Publication
EditorsRavinder Chona
PublisherPubl by ASTM
Pages55-79
Number of pages25
Edition1189
ISBN (Print)0803118678
StatePublished - 1993
EventProceedings of the 23rd National Symposium on Fracture Mechanics - College Station, TX, USA
Duration: Jun 18 1991Jun 20 1991

Publication series

NameASTM Special Technical Publication
Number1189
ISSN (Print)0066-0558

Conference

ConferenceProceedings of the 23rd National Symposium on Fracture Mechanics
CityCollege Station, TX, USA
Period06/18/9106/20/91

Fingerprint

Dive into the research topics of 'Experimental relationship between equivalent plastic strain and constraint for crack initiation'. Together they form a unique fingerprint.

Cite this