Accession Number:

ADA204538

Title:

Dynamic Constitutive/Failure Models

Descriptive Note:

Final rept. for 10-11 May 1988

Corporate Author:

DAYTON UNIV OH RESEARCH INST

Personal Author(s):

Report Date:

1988-12-01

Pagination or Media Count:

505.0

Abstract:

Many important impact engineering applications rely on numerical simulations using finite elementdifference 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.

Subject Categories:

  • Ceramics, Refractories and Glass
  • Laminates and Composite Materials
  • Properties of Metals and Alloys
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE