Accession Number : AD0773015

Title :   Modifications to TOODY for Lethality Calculations.

Descriptive Note : Contract rept.,

Corporate Author : ROADRUNNER RESEARCH LTD ALBUQUERQUE N MEX

Personal Author(s) : Walsh,Robert T.

Report Date : DEC 1973

Pagination or Media Count : 148

Abstract : Provisions for predicting time-dependent failure and for modeling composite materials are incorporated into the TOODY two- dimensional stress wave propagation computer program. The four failure criteria are based on the history of a single scalar stress. The composite material model accounts for unequal heating of material components and treats three phases, solid-liquid, vapor and a mixed phase in which only part of the material is vaporized. Test calculations are included for the purpose of checking the models and the coding. The resulting code provides a capability to perform significant lethality studies for configurations for which one-dimensional approximations are unsatisfactory. (Author-PL)

Descriptors :   *Composite materials, *Computer programs, Failure, Equations of state, Stress waves, Asbestos, Polymers, Lethality

Subject Categories : Laminates and Composite Materials
      Computer Programming and Software

Distribution Statement : APPROVED FOR PUBLIC RELEASE