Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published March 30, 1997 | public
Journal Article

Adaptive Lagrangian modelling of ballistic penetration of metallic targets

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

Created:
August 19, 2023
Modified:
October 18, 2023