Accession Number : ADA290666

Title :   Analysis of Adiabatic Shear Bands in Thermoviscoplastic Materials Under Combined Loading,

Corporate Author : MISSOURI UNIV-ROLLA

Personal Author(s) : Batra, Romesh C.

PDF Url : ADA290666

Report Date : NOV 1994

Pagination or Media Count : 13

Abstract : We study the initiation and growth of adiabatic shear bands in a thin-walled steel tube deformed first quasistatically either in simple compression or simple tension or by a pressure applied to the inner surface of the tube and then one end of the tube is kept fixed and the other end is twisted with a prescribed tangential speed. The objective is to see how prior quasistatic deformations of the tube affect the nominal shear strain at which a shear band initiates in the tube. The first set of numerical experiments simulates tests recently conducted by Murphy who found that the nominal strain at the initiation of the shear bands decreased with an increase in the axial static compressive stress induced in the tube. (AN)

Descriptors :   *VISCOPLASTICITY, *PLASTIC DEFORMATION, VELOCITY, STRESS STRAIN RELATIONS, EXPERIMENTAL DATA, STATIC LOADS, TENSILE STRESS, STEEL, STRAIN RATE, SHEAR STRESSES, NUMERICAL METHODS AND PROCEDURES, PRESSURE DISTRIBUTION, ADIABATIC CONDITIONS, TORQUE, AXIAL LOADS, SURFACE TENSION, COMPRESSIVE PROPERTIES, TUBES, SHEAR STRENGTH, THIN WALLS.

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE