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A Cohesive model of fatigue crack growth

Nguyen, O. and Repetto, E. A. and Ortiz, M. and Radovitzky, R. A. (2001) A Cohesive model of fatigue crack growth. International Journal of Fracture, 110 (4). pp. 351-369. ISSN 0376-9429. doi:10.1023/A:1010839522926.

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We investigate the use of cohesive theories of fracture, in conjunction with the explicit resolution of the near-tip plastic fields and the enforcement of closure as a contact constraint, for the purpose of fatigue-life prediction. An important characteristic of the cohesive laws considered here is that they exhibit unloading-reloading hysteresis. This feature has the important consequence of preventing shakedown and allowing for steady crack growth. Our calculations demonstrate that the theory is capable of a unified treatment of long cracks under constant-amplitude loading, short cracks and the effect of overloads, without ad hoc corrections or tuning.

Item Type:Article
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URLURL TypeDescription ReadCube access
Ortiz, M.0000-0001-5877-4824
Additional Information:© Kluwer Academic Publishers 2001. Received 15 December 1999; accepted in revised form 15 January 2001. Support from the Office of the Naval Research through grant N00014-96-0068 is gratefully acknowledged. We are grateful to Dr Abe Askari of The Boeing Co. for helpful suggestions and discussions.
Funding AgencyGrant Number
Office of Naval Research (ONR)N00014-96-0068
Subject Keywords:Cohesive law, fatigue, finite elements, overload, short cracks
Issue or Number:4
Record Number:CaltechAUTHORS:20171212-143333386
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Official Citation:Nguyen, O., Repetto, E., Ortiz, M. et al. International Journal of Fracture (2001) 110: 351.
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:83834
Deposited By: Lydia Suarez
Deposited On:20 Dec 2017 00:29
Last Modified:15 Nov 2021 20:14

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