Experimental determination of J-Q in the two-parameter characterization of fracture

Book · Wed Nov 01 00:00:00 EST 1995

OSTI ID:122621

Li, S; Chiang, F P ^[1]

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1. State Univ. of New York, Stony Brook, NY (United States). Lab. for Experimental Mechanics Research

It is well recognized that using a single parameter to characterize crack tip deformation is no long adequate if constraint is present. Several approaches of two-parameter characterization scheme have been proposed. There are the J-T approach, the J-Q approach of Shih et al and the J-Q approach of Sharma and Aravas. The authors propose a scheme to measure the J and Q of the J-Q theory of Sharma and Aravas. They find that with the addition of Q term the experimentally measured U-field displacement component agrees well with the theoretical prediction. The agreement increases as the crack tip constraint increases. The results of a SEN and a CN specimen are presented.

• OSTI ID: 122621
• Report Number(s): CONF-950740-; ISBN 0-7918-1335-5; TRN: IM9547%%201
• Resource Relation: Conference: Joint American Society of Mechanical Engineers (ASME)/Japan Society of Mechanical Engineers (JSME) pressure vessels and piping conference, Honolulu, HI (United States), 23-27 Jul 1995; Other Information: PBD: 1995; Related Information: Is Part Of Fatigue and fracture mechanics in pressure vessels and piping. PVP-Volume 304; Mehta, H.S.; Wilkowski, G.; Takezono, S.; Bloom, J.; Yoon, K.; Aoki, S.; Rahman, S.; Nakamura, T.; Brust, F.; Yoshimura, S. [eds.]; PB: 594 p.
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
FRACTURE MECHANICS
FRACTURE PROPERTIES
CRACKS
MATHEMATICAL MODELS
THEORETICAL DATA
EXPERIMENTAL DATA