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A cohesive approach to thin-shell fracture and fragmentation

Cirak, Fehmi and Ortiz, Michael and Pandolfi, Anna (2005) A cohesive approach to thin-shell fracture and fragmentation. Computer Methods in Applied Mechanics and Engineering, 194 (21-24). pp. 2604-2618. ISSN 0045-7825.

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We develop a finite-element method for the simulation of dynamic fracture and fragmentation of thin-shells. The shell is spatially discretized with subdivision shell elements and the fracture along the element edges is modeled with a cohesive law. In order to follow the propagation and branching of cracks, subdivision shell elements are pre-fractured ab initio and the crack opening is constrained prior to crack nucleation. This approach allows for shell fracture in an in-plane tearing mode, a shearing mode, or a bending of hinge mode. The good performance of the method is demonstrated through the simulation of petalling failure experiments in aluminum plates.

Item Type:Article
Related URLs:
URLURL TypeDescription
Ortiz, Michael0000-0001-5877-4824
Pandolfi, Anna0000-0002-7084-7456
Additional Information:© 2005 Elsevier. Received 15 January 2004, Revised 9 March 2004, Accepted 20 July 2004, Available online 28 January 2005. The support of DoE through Caltech’s ASCI Center for the Simulation of the Dynamic Response of Materials (DOE W-7405-ENG-48, B523297) is gratefully acknowledged. MO is also grateful for partial support from the Office of Naval Research through grant N00014-96-1-0068.
Funding AgencyGrant Number
Department of Energy (DOE)W-7405-ENG-48/B523297
Office of Naval Research (ONR)N00014-96-1-0068
Subject Keywords:Shells; Finite elements; Subdivision shape functions; Cohesive fracture; Petalling failure
Issue or Number:21-24
Record Number:CaltechAUTHORS:20171128-110244891
Persistent URL:
Official Citation:Fehmi Cirak, Michael Ortiz, Anna Pandolfi, A cohesive approach to thin-shell fracture and fragmentation, In Computer Methods in Applied Mechanics and Engineering, Volume 194, Issues 21–24, 2005, Pages 2604-2618, ISSN 0045-7825, (
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:83510
Deposited By: Lydia Suarez
Deposited On:29 Nov 2017 20:44
Last Modified:24 Feb 2020 10:30

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