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Finite element simulation of dynamic fracture and fragmentation of glass rods

Repetto, E. A. and Radovitzky, R. and Ortiz, M. (2000) Finite element simulation of dynamic fracture and fragmentation of glass rods. Computer Methods in Applied Mechanics and Engineering, 183 (1-2). pp. 3-14. ISSN 0045-7825. https://resolver.caltech.edu/CaltechAUTHORS:20171212-155115498

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Abstract

The aim of this communication is to provide further illustration of the feasibility of simulating fragmentation explicitly, crack by crack. Cracks are allowed to form and propagate along element boundaries in accordance with a tension-shear cohesive-law model. No topological restrictions are imposed on the cracks, which may nucleate at the surface or in the interior, branch, and link up to form fragments. As the fragments scatter, the complex collisions which they undergo and the attendant frictional interactions are also resolved explicitly by recourse to a contact algorithm. We present a new model of radial cracking which permits the calculation of normal impact to proceed in an axisymmetric mode, without artificially constraining fragment rotation within meridional planes. The scope and versatility of the approach is demonstrated by simulating the propagation of failure waves in glass rods subjected to impact. Key aspects of the observational evidence, such as the failure wave speeds, are correctly predicted by the simulations.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/S0045-7825(99)00208-XDOIArticle
http://www.sciencedirect.com/science/article/pii/S004578259900208XPublisherArticle
ORCID:
AuthorORCID
Ortiz, M.0000-0001-5877-4824
Additional Information:© 2000 Elsevier. Received 7 September 1998. The support of the Army Research Office through contract DAAH04-96-1-0056 is gratefully acknowledged.
Group:GALCIT
Funders:
Funding AgencyGrant Number
Army Research Office (ARO)DAAH04-96-1-0056
Subject Keywords:Failure waves; Fragmentation; Finite element modelling
Issue or Number:1-2
Record Number:CaltechAUTHORS:20171212-155115498
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20171212-155115498
Official Citation:E.A. Repetto, R. Radovitzky, M. Ortiz, Finite element simulation of dynamic fracture and fragmentation of glass rods, In Computer Methods in Applied Mechanics and Engineering, Volume 183, Issues 1–2, 2000, Pages 3-14, ISSN 0045-7825, https://doi.org/10.1016/S0045-7825(99)00208-X. (http://www.sciencedirect.com/science/article/pii/S004578259900208X)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:83849
Collection:CaltechAUTHORS
Deposited By: Lydia Suarez
Deposited On:19 Dec 2017 19:48
Last Modified:24 Feb 2020 10:30

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