TY - GEN
T1 - Applicability evaluation of the weight function based strip yield model for an embedded crack problems
AU - Gotoh, Koji
AU - Nagata, Yukinobu
PY - 2009
Y1 - 2009
N2 - Applicability evaluation of the developed weight function based strip yield model for an embedded crack by applying the slice synthesis methodology in elastic-perfect plastic bodies under monotonic uniform loading is performed. Although the weight function based strip yield model for apart-through semi-elliptical surface crack in an elastic-perfect plastic bodies under monotonic uniform loading was proposed by Daniewicz and Aveline (2000), applicable geometries of cracked bodies is limited. Their proposed strip yield model treats only a semi-elliptical surface crack in semi-infinite bodies. Besides, quantitative investigations of the applicability seem to be insufficient. The authors proposed the improved strip yield model with slice synthesis methodology for an embedded crack, which enables to treat the finite boundary problems. By applying proposed model, the back surface effect of the crack opening behaviour and the plastic zone growth can be considered. The validity of improved strip yield model for embedded cracks is confirmed by comparing crack opening profiles under some crack geometries with elastic-plastic finite element analyses.
AB - Applicability evaluation of the developed weight function based strip yield model for an embedded crack by applying the slice synthesis methodology in elastic-perfect plastic bodies under monotonic uniform loading is performed. Although the weight function based strip yield model for apart-through semi-elliptical surface crack in an elastic-perfect plastic bodies under monotonic uniform loading was proposed by Daniewicz and Aveline (2000), applicable geometries of cracked bodies is limited. Their proposed strip yield model treats only a semi-elliptical surface crack in semi-infinite bodies. Besides, quantitative investigations of the applicability seem to be insufficient. The authors proposed the improved strip yield model with slice synthesis methodology for an embedded crack, which enables to treat the finite boundary problems. By applying proposed model, the back surface effect of the crack opening behaviour and the plastic zone growth can be considered. The validity of improved strip yield model for embedded cracks is confirmed by comparing crack opening profiles under some crack geometries with elastic-plastic finite element analyses.
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U2 - 10.1115/OMAE2009-79562
DO - 10.1115/OMAE2009-79562
M3 - Conference contribution
AN - SCOPUS:77953083697
SN - 9780791843468
T3 - Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE
SP - 107
EP - 113
BT - Proceedings of the 28th International Conference on Ocean, Offshore and Arctic Engineering 2009, OMAE2009
T2 - 28th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2009
Y2 - 31 May 2009 through 5 June 2009
ER -