Dynamic Response in an Elastic-Plastic Projectile Due to Normal Impact,
Abstract
A numerical study of the dynamic response of an elastic-plastic projectile due to normal impact has been made using the finite element structural response code ADINA. The projectile is a finite length circular cylindrical bar striking a rigid target. First, three (central-difference, Newmark, Wilson) direct integration schemes were used for uniaxial stress wave problems in a linear-hardening material and the results were compared with an exact analytical solution in order to evaluate accuracy and stability. Then, additional numerical results for perfectly-plastic materials were obtained in order to show the effect of strain-hardening. Finally, some results for a multi-linear material model based on two-dimensional elements are presented order to show the lateral effect. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 01, 1985
- Accession Number
- ADP004952
Entities
People
- J. D. Vasilakis
- J. E. Flaherty
- P. C. T. Chen
Organizations
- United States Army Armament Research, Development and Engineering Center