Dynamic Constitutive/Failure Models
Abstract
Many important impact engineering applications rely on numerical simulations using finite element/difference computer codes for analysis. Several unique codes have been developed in recent years incorporating novel concepts such as slide line logics, erosion, rezoning, dezoning, etc. The modeling of material behavior in computer codes, while achieving improved sophistication in recent years, still lags behind our present knowledge of dynamic behavior and failure. Accurate descriptions of the dynamic inelastic behavior of materials for metals, ceramics, and composites in computer codes must include the effects of strain rate, loading history, high pressure, high temperature, large deformation, and internal damage. The objective of this report is to identify and explore solutions to critical issues in modeling material behavior under high loading rates for use in computer codes. The report will bring together a critical mass of active presenters involved in various aspects of modeling the response of nonreactive materials to high strain rate loading. Attention will be focused in issues that require high strain rate loading. Attention will be focused on issues that require interactions between experimentalists, material scientists, applied mechancians and model builders, and developers of advanced computer codes. Keywords: Impact, Spall, Concrete, Plastic flow, Brittle.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 01, 1988
- Accession Number
- ADA204538
Entities
People
- A. M. Rajendran
- T. N. Nicholas
Organizations
- University of Dayton