SYMPOSIA PAPER Published: 01 January 1979
STP34937S

Analysis of Load-Displacement Relationship to Determine J-R Curve and Tearing Instability Material Properties

Source

Exact methods, based on dimensional analysis of the dependence of the load on crack length and displacement using deformation theory of plasticity, are used to obtain J from a single load-displacement record for different configurations. The methods also permit the evaluation of the crack length increment Δa, and hence, complete J-R curves can be constructed. Formulae for Tmat and Tapp are presented as well.

Author Information

Ernst, H
Washington University, St. Louis, Mo.
Paris, PC
Washington University, St. Louis, Mo.
Rossow, M
Washington University, St. Louis, Mo.
Hutchinson, JW
Harvard University, Cambridge, Mass.
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Details
Developed by Committee: E08
Pages: 581–599
DOI: 10.1520/STP34937S
ISBN-EB: 978-0-8031-4746-1
ISBN-13: 978-0-8031-0364-1