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Finite-deformation irreversible cohesive elements for three-dimensional crack-propagation analysis

Ortiz, M. and Pandolfi, A. (1999) Finite-deformation irreversible cohesive elements for three-dimensional crack-propagation analysis. International Journal for Numerical Methods in Engineering, 44 (9). pp. 1267-1282. ISSN 0029-5981. http://resolver.caltech.edu/CaltechAUTHORS:20171213-094245696

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Abstract

We develop a three-dimensional finite-deformation cohesive element and a class of irreversible cohesive laws which enable the accurate and efficient tracking of dynamically growing cracks. The cohesive element governs the separation of the crack flanks in accordance with an irreversible cohesive law, eventually leading to the formation of free surfaces, and is compatible with a conventional finite element discretization of the bulk material. The versatility and predictive ability of the method is demonstrated through the simulation of a drop-weight dynamic fracture test similar to those reported by Zehnder and Rosakis. The ability of the method to approximate the experimentally observed crack-tip trajectory is particularly noteworthy.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://dx.doi.org/10.1002/(SICI)1097-0207(19990330)44:9<1267::AID-NME486>3.0.CO;2-7DOIArticle
http://onlinelibrary.wiley.com/doi/10.1002/(SICI)1097-0207(19990330)44:9%3C1267::AID-NME486%3E3.0.CO;2-7/abstractPublisherArticle
ORCID:
AuthorORCID
Pandolfi, A.0000-0002-7084-7456
Additional Information:© 1999 John Wiley & Sons, Ltd. Received 16 September 1997. Revised 15 May 1998. This research has been supported by the Office of Naval Research through grant N00014-95-1-0453.
Group:GALCIT
Funders:
Funding AgencyGrant Number
Office of Naval Research (ONR)N00014-95-1-0453
Subject Keywords:cohesive law; finite deformations; three dimensional; crack propagation; finite element; dynamic fracture
Record Number:CaltechAUTHORS:20171213-094245696
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20171213-094245696
Official Citation:Ortiz, M. and Pandolfi, A. (1999), Finite-deformation irreversible cohesive elements for three-dimensional crack-propagation analysis. Int. J. Numer. Meth. Engng., 44: 1267–1282. doi:10.1002/(SICI)1097-0207(19990330)44:9<1267::AID-NME486>3.0.CO;2-7
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:83866
Collection:CaltechAUTHORS
Deposited By: Lydia Suarez
Deposited On:13 Dec 2017 22:38
Last Modified:13 Dec 2017 22:38

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