Accession Number : AD0693138

Title :   SIMILARITY SOLUTIONS FOR EXPANSION OF A HOLE IN ANISOTROPIC PLASTIC DISKS.

Descriptive Note : Technical rept.,

Corporate Author : CALIFORNIA UNIV SAN DIEGO LA JOLLA DEPT OF THE AEROSPACE AND MECHANICAL ENGINEERING SCIENCES

Personal Author(s) : Chern,Jenn-Ming ; Nemat-Nasser,S.

Report Date : AUG 1969

Pagination or Media Count : 48

Abstract : Similarity solutions are obtained for the expansion of a circular hole with zero (pin-hole) or finite initial radius in an infinitely extended, axisymmetric, anisotropic disk of a non-uniform initial thickness. A linear workhardening law is used together with Mises' and Tresca's yield conditions. A complete closed-form solution is developed for Tresca's yield condition and its associated flow rule. Similar results are obtained for Mises' yield condition and its associated flow rule; these results are not, however, in a closed-form. Two illustrative examples are worked out in detail to demonstrate the basic results, especially the effects of anisotropy and workhardening. (Author)

Descriptors :   (*METAL PLATES, LOADS(FORCES)), DISKS, PLASTIC PROPERTIES, ELASTIC PROPERTIES, ANISOTROPY, YIELD POINT, THICKNESS, DEFORMATION, STRESSES, STRAIN(MECHANICS), HARDENING, MODULUS OF ELASTICITY, NUMERICAL ANALYSIS

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE