Accession Number : AD0691444

Title :   LARGE DEFLECTION ANALYSIS OF ELASTIC-PLASTIC SHELLS OF REVOLUTION.

Descriptive Note : Technical rept. no. 1, 1 Jun 30 Nov 68,

Corporate Author : BROWN UNIV PROVIDENCE R I DIV OF ENGINEERING

Personal Author(s) : Marcal,Pedro V.

Report Date : DEC 1968

Pagination or Media Count : 38

Abstract : A finite element method is developed for the large deflection elastic-plastic analysis of axisymmetric shells of revolution. Results were obtained for a torisphere under internal pressure and also for centrally loaded spheres. A study was made of the effect of elastic-plastic behavior on the buckling of spheres with axisymmetric imperfections subjected to external pressure. It was found that plastic yielding played a significant role in reducing the buckling pressure of these shells. The influence of plastic yielding increased with increase of the thickness to radius ratio. (Author)

Descriptors :   (*SHELLS(STRUCTURAL FORMS), STRUCTURAL PROPERTIES), PRESSURE VESSELS, BODIES OF REVOLUTION, ELASTIC SHELLS, PLASTIC PROPERTIES, BUCKLING, PRESSURE, LOADS(FORCES), DEFLECTION, COMPUTER PROGRAMMING, DISPLACEMENT REACTIONS, MATRICES(MATHEMATICS)

Subject Categories : Solid State Physics

Distribution Statement : APPROVED FOR PUBLIC RELEASE