Crack Analysis of Power Hardening Materials Using a Penalty Function and Superposition Method

G Yagawa; T Aizawa; Y Ando

doi:10.1520/STP36984S

SYMPOSIA PAPER Published: 01 January 1980

STP36984S

Crack Analysis of Power Hardening Materials Using a Penalty Function and Superposition Method

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Crack analysis is performed for plates characterized by the power hardening material law. A new superposition method of the analytical and the finite element models is proposed with the use of the penalty function, which is frequently adopted to solve the optimization problems. The characteristic distributions of the stress and strain around the crack tip are calculated and compared with the analytical results. Numerical discussion is also made regarding the effects of the crack length to plate width ratio and the power exponent in the hardening law on the nondimensional values of the J-integral, the crack opening displacement, and the residual load point displacement.

Author Information

Yagawa, G

University of Tokyo, Tokyo, Japan

Aizawa, T

University of Tokyo, Tokyo, Japan

Ando, Y

University of Tokyo, Tokyo, Japan

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Details

Developed by Committee: E08

Pages: 439–452

DOI: 10.1520/STP36984S

ISBN-EB: 978-0-8031-4770-6

ISBN-13: 978-0-8031-0363-4

Crack Analysis of Power Hardening Materials Using a Penalty Function and Superposition Method

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