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Adaptive Lagrangian modelling of ballistic penetration of metallic targets

Camacho, G. T. and Ortiz, M. (1997) Adaptive Lagrangian modelling of ballistic penetration of metallic targets. Computer Methods in Applied Mechanics and Engineering, 142 (3-4). pp. 269-301. ISSN 0045-7825. http://resolver.caltech.edu/CaltechAUTHORS:20171213-102621794

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Abstract

A Lagrangian finite element model of ductile penetration is developed. Adaptive meshing is accorded a key role in following the large deformations which develop during penetration. An explicit contact/friction algorithm is used to treat the multi-body dynamics. Rate-dependent plasticity, heat conduction and thermal coupling are also accounted for in the calculations. The properties and predictive ability of the model are exhibited in several applications: copper rod impact, perforation of aluminum plates by conical-nosed projectiles and penetration of high-strength steel targets by WHA long rods. The simulations show close agreement with experimental observations and prior numerical results.


Item Type:Article
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https://doi.org/10.1016/S0045-7825(96)01134-6DOIArticle
http://www.sciencedirect.com/science/article/pii/S0045782596011346PublisherArticle
Additional Information:© 1997 Elsevier. Received 23 May 1995. The work has been funded by the Army Research Office University Research Initiative through grant DAAL 03-92-G-0107. The authors are indebted to Prof. R. Clifton, Dr. J. Nagtegaal of HKS Inc. and Dr. M. Raftenberg of BRL for helpful suggestions and discussions.
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Funding AgencyGrant Number
Army Research Office (ARO)DAAL 03-92-G-0107
Record Number:CaltechAUTHORS:20171213-102621794
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20171213-102621794
Official Citation:G.T. Camacho, M. Ortiz, Adaptive Lagrangian modelling of ballistic penetration of metallic targets, In Computer Methods in Applied Mechanics and Engineering, Volume 142, Issues 3–4, 1997, Pages 269-301, ISSN 0045-7825, https://doi.org/10.1016/S0045-7825(96)01134-6. (http://www.sciencedirect.com/science/article/pii/S0045782596011346)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:83882
Collection:CaltechAUTHORS
Deposited By: Lydia Suarez
Deposited On:13 Dec 2017 18:54
Last Modified:13 Dec 2017 18:54

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