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Elastic-Plastic Fracture Mechanics for Two-Dimensional Stable Crack Growth and Instability Problems
D. Broek
GT. Hahn
MF. Kanninen
CW. Marschall
AR. Rosenfield
EF. Rybicki
RB. Stonesifer
出版
ASTM International
, 1979
URL
http://books.google.com.hk/books?id=SOd6zgEACAAJ&hl=&source=gbs_api
註釋
An elastic-plastic fracture mechanics methodology for treating two-dimensional stable crack growth and instability problems is described. The paper draws on "generation-phase" analyses in which the experimentally observed applied-load (or displacement) stable crack growth behavior is reproduced in a finite-element model. In these calculations a number of candidate stable crack growth parameters are calculated for the material tested. The quality of the predictions that can be made with these parameters is tested with "application-phase" analyses. Here, the finite-element model is used to predict stable crack growth and instability for a different geometry, with a previously evaluated parameter serving as the criterion for stable growth. These analyses are applied to and compared with measurements of crack growth and instability in center-cracked panels and compact tension specimens of the 2219-T87 aluminum alloy and the A533-B grade of steel.
