A Procedure for the Determination of Ductile Fracture Toughness Values Using JIntegral Techniques

Autor: Clarke, GA, Andrews, WR, Begley, JA, Donald, JK, Embley, GT, Landes, JD, McCabe, DE, Underwood, JH
Zdroj: Journal of Testing and Evaluation; January 1979, Vol. 7 Issue: 1 p49-56, 8p
Abstrakt: A procedure to determine the ductile fracture toughness value JIc, the value of the Jintegral at incipient crack growth, is described. The procedure was developed by the working committee of ASTM Task Group E24.01.09 on Elastic-Plastic Fracture under Committee E-24 on Fracture Testing. The principal goal of this report is to present a procedure for JIcdetermination that may be used as a basis for an ASTM standard on elastic-plastic testing. Although this procedure is described in terms of the multiple-specimen technique, any single-specimen method can be used as long as a good correspondence exists between the crack extension as measured by the heat tinting technique and that measured by single-specimen methods.
Databáze: Supplemental Index