This paper presents a comparison of stress results obtained using the FESAP three-dimensional finite element computer program with results obtained from experimental testing. The comparison was obtained for the case of internal pressure applied to a cylinder-to-cylinder structure with a variable shell thickness at the juncture and a D/d of 1.6. The experimental testing conducted at the Babcock & Wilcox Research Center, Alliance, Ohio, consisted of strain gage testing followed by a “stress freezing” photoelastic analysis. The numerical analysis was performed at the Babcock & Wilcox Nuclear Equipment Division using the FESAP three-dimensional isoparametric element with incompatible modes. The model mesh was generated with the program FEMEG which is briefly discussed. The paper includes a detailed description of both the experimental and analytical studies. It is concluded that FESAP, with the eight-node incompatible mode element can accurately and economically predict the structural response of complex components.

This content is only available via PDF.
You do not currently have access to this content.