Accession Number : AD0724716

Title :   Elasto-Plastic Analysis of an Arbitrary Anisotropic Laminated Shell by the Finite Element Method.

Descriptive Note : Research rept.,

Corporate Author : ALABAMA UNIV HUNTSVILLE RESEARCH INST

Personal Author(s) : Chung,T. J. ; Eidson,R. L.

Report Date : OCT 1970

Pagination or Media Count : 43

Abstract : A procedure for the elasto-plastic analysis of a general anisotropic laminated shell using the finite element method is presented. A curved triangular element with linear membrane displacement and quintic normal displacement is used. The analysis approach taken is that of incremental loads with additional loads being applied to account for the effect of plasticity. The analysis is carried out in conjunction with the Huber-Mises yield criterion and the Prandtl-Reuss flow rule in accordance with the theory of a strain-hardening yield function. To account for anisotropy the yield criterion is generalized by introducing the anisotropic parameters of plasticity. These parameters, although constant within a load increment, are allowed to vary from one load increment to another as the material strain hardens. (Author)

Descriptors :   (*SHELLS(STRUCTURAL FORMS), ELASTIC PROPERTIES), PLASTIC PROPERTIES, LAMINATES, LOADS(FORCES), STRESSES, BENDING, STRAIN(MECHANICS), STRAIN HARDENING

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE