Accession Number : ADA329896

Title :   Characterisation of D6AC Steel Using A Unified Constitutive Model

Descriptive Note : Technical rept

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

Personal Author(s) : Searl, A. ; Paul, J.

PDF Url : ADA329896

Report Date : JUL 1997

Pagination or Media Count : 50

Abstract : An experimental test program was undertaken to characterise the inelastic response of D6AC steel under differing cyclic loading. A unified constitutive model was used to describe material behaviour. Constants for the model were extracted from the test results and numerical model predictions were compared with the experimental results. The tests revealed that D6AC steel saturates after one cyclic loop and a change in modulus was observed after unloading from a tensile load. Also described are improvements in the testing of uniaxial specimens, focusing on techniques for specimen alignment to minimise out of plane bending effects.

Descriptors :   *PLASTIC DEFORMATION, *FINITE ELEMENT ANALYSIS, *STEEL, *STRESS RELAXATION, MATHEMATICAL MODELS, EXPERIMENTAL DATA, MATHEMATICAL PREDICTION, AUSTRALIA, CYCLIC LOADS.

Subject Categories : Metallurgy and Metallography

Distribution Statement : APPROVED FOR PUBLIC RELEASE