SYMPOSIA PAPER Published: 01 January 1988
STP33080S

On the Application of -Curves and Maximum Load Toughness to Structures

Source

An approximate procedure is presented which allows a ductile fracture analysis to be performed with a single fracture toughness value measured at maximum load in a small-scale test. This maximum load toughness value is used to predict an R-curve which is then used to predict maximum stress and crack extension. Predictions from this approach are compared with experimental data from 20 wide-plate specimens made from various ductile materials. A limited number of these specimens are also analyzed using experimental R-curves in order to investigate the effect of the assumed shape of the R-curve on predictions. In addition, an analysis is presented which allows one to determine the critical tearing modulus required for a structure to exhibit collapse controlled failure. Potential applications of these analyses are discussed.

Author Information

Anderson, TL
Texas A & M University, College Station, TX
Gordon, JR
Fracture Department, The Welding Institute, Abington, Cambridge, England
Garwood, SJ
Fracture Department, The Welding Institute, Abington, Cambridge, England
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Details
Developed by Committee: E08
Pages: 291–317
DOI: 10.1520/STP33080S
ISBN-EB: 978-0-8031-5041-6
ISBN-13: 978-0-8031-0972-8