LARGE DEFLECTION ANALYSIS OF ELASTIC-PLASTIC SHELLS OF REVOLUTION.
Technical rept. no. 1, 1 Jun 30 Nov 68,
BROWN UNIV PROVIDENCE R I DIV OF ENGINEERING
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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
- Solid State Physics