Published March 30, 1997
| public
Journal Article
Adaptive Lagrangian modelling of ballistic penetration of metallic targets
- Creators
- Camacho, G. T.
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Ortiz, M.
Chicago
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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.
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.Additional details
- Eprint ID
- 83882
- DOI
- 10.1016/S0045-7825(96)01134-6
- Resolver ID
- CaltechAUTHORS:20171213-102621794
- Army Research Office (ARO)
- DAAL 03-92-G-0107
- Created
-
2017-12-13Created from EPrint's datestamp field
- Updated
-
2021-11-15Created from EPrint's last_modified field
- Caltech groups
- GALCIT