Accession Number : ADA327751

Title :   Implementation of a Unified Constitutive Model into the PAFEC Finite Element Package.

Descriptive Note : Final rept.,

Corporate Author : DEFENCE SCIENCE AND TECHNOLOGY ORGANIZATION CANBERRA (AUSTRALIA)

Personal Author(s) : Paul, J.

PDF Url : ADA327751

Report Date : MAY 1997

Pagination or Media Count : 46

Abstract : A unified constitutive material model was implemented in to the PAFEC Finite Element Package Level 8.1. The modifications allow the PAFEC Package to perform time dependent plasticity. This includes the calculation of the updated material Jacobian used in the formulation of the global stiffness matrix. Automated time stepping, reduced storage requirements and structural convergence features were also included in the code. A series of test analyses addressing different aspects such as element types and loading conditions were performed and shown to agree with expected results.

Descriptors :   *PLASTIC DEFORMATION, *FINITE ELEMENT ANALYSIS, *STRESS RELAXATION, ALGORITHMS, LOAD DISTRIBUTION, STRESS ANALYSIS, TIME DEPENDENCE, MATRICES(MATHEMATICS), STRUCTURAL ANALYSIS, STIFFNESS, RESIDUAL STRESS, JET FIGHTERS, PLASTIC PROPERTIES, AUSTRALIA, CYCLIC LOADS, STRUCTURAL INTEGRITY.

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE