Application of the GTN Model to Quantify Constraint Effects on Ductile Fracture of API X65 Steels

Abstract:

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This paper quantifies the effects of geometry, the loading mode and the specimen size on fracture toughness of the API X65 steel, via plane strain finite element (FE) damage analyses using the GTN model. The validity of FE damage analyses is checked first by comparing with experimental test data for small-sized, cracked bar test. Then the analyses are extended to investigate the effects of the relative crack depth and the specimen size on fracture toughness. It is shown that fracture toughness of the API X65 steel increases with decreasing the relative crack depth and increasing the specimen size.

Info:

Periodical:

Key Engineering Materials (Volumes 324-325)

Edited by:

M.H. Aliabadi, Qingfen Li, Li Li and F.-G. Buchholz

Pages:

667-670

DOI:

10.4028/www.scientific.net/KEM.324-325.667

Citation:

Y. J. Kim et al., "Application of the GTN Model to Quantify Constraint Effects on Ductile Fracture of API X65 Steels", Key Engineering Materials, Vols. 324-325, pp. 667-670, 2006

Online since:

November 2006

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Price:

$35.00

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