Accession Number : ADA298590

Title :   Finite Strain Plasticity Constitutive Modeling in Computational Mechanics.

Descriptive Note : Final rept.,

Corporate Author : ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Huffington, Norris J., Jr

PDF Url : ADA298590

Report Date : JUL 1995

Pagination or Media Count : 36

Abstract : The utility of employing discrete point input constitutive data (effective stress vs. effective plastic strain) for finite elastoplastic response problems is examined. A difficulty that occurs when the response effective plastic strain passes points of slope discontinuity in the input data is noted, and an algorithm that circumvents this difficulty is introduced. This algorithm has been successfully incorporated in the DYNA3D hydrocode and the NIKE3D structural mechanics code. (MM)

Descriptors :   *STRAIN(MECHANICS), *HYDRODYNAMIC CODES, *PLASTIC PROPERTIES, *ELASTOPLASTICITY, COMPUTER PROGRAMS, ALGORITHMS, COMPUTATIONS, STRESS ANALYSIS, SLOPE, DISCRETE DISTRIBUTION, DISCONTINUITIES, PLASTIC FLOW.

Subject Categories : Fluid Mechanics
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE