Accession Number : AD0754119

Title :   Two-Dimensional Stress Waves Resulting from Axisymmetric Impact of Finite-Length Rods.

Descriptive Note : Technical rept.,

Corporate Author : NORTH CAROLINA STATE UNIV RALEIGH

Personal Author(s) : Chang,H. L. ; Horie,Y.

Report Date : JAN 1973

Pagination or Media Count : 102

Abstract : A numerical analysis has been developed to study the dynamic problem of axisymmetrically impacting, finite-length rods. The analysis is based upon the method of characteristics and the medium is assumed elastic/viscoplastic, satisfying von Mises yielding criterion, isotropic hardening, and viscoplastic incompressibility. The numerical results are in general comparable to those of elastic-plastic solids by the numerical finite-difference method. The paper examines the influence of viscoplasticity on two-dimensional stress wave propagation, dynamic Saint Venant's principle, reflection of two-dimensional stress waves from free boundaries, and internal phenomena due to stress wave interactions. (Author)

Descriptors :   (*RODS, IMPACT SHOCK), STRESSES, ELASTIC PROPERTIES, PLASTIC PROPERTIES, IMPACT, MECHANICAL WAVES, PROPAGATION, NUMERICAL ANALYSIS

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE