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Buckling Analysis on an Elevated Temperature Vessel under a Vacuum

A buckling analysis was performed on an elevated temperature stainless steel vessel subjected to a vacuum loading. Both instantaneous (linear and nonlinear) buckling and creep buckling were investigated. The analysis was performed using ANSYS finite element software, using linear shell elements (Shell 181) with creep capability. The analysis showed that the vessel maintained a significant safety margin against buckling under a vacuum load, at 1200 degrees F for short periods of time, with up to 1 percent out-of-roundness (measured after post weld heat treatment). The analysis also showed that the nozzle loads on the vessels had negligible effect on the governing buckling modes.

See also:
Structural Analysis of Condensate Receiving Tanks
Structural Analysis of HDPE Clarification Tank to NSF Codes
Elevated Temperature Design and Analysis
Engineering Design and Analysis
Finite Element Analysis


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