T. Aseer Brabin, Thankian Christopher, and B. Nageswara Rao:
Assessing the failure of cylindrical pressure vessels due to longitudinal weld misalignment
Finite element analysis, maraging steel, pressure vessels, weld misalignment
Failure assessment was made on cylindrical pressure vessels containing longitudinal weld misalignment performing finite element analysis (FEA).
A 20° section of the cylindrical shell wall was modelled utilizing the plane strain element (plane 182) with the longitudinal weld in the centre of section. The weld misalignment was introduced by shifting the position of the cylindrical section on one side of the weld relative to the other section.
Read which agreement was obtained between failure pressure estimates from FEA based on the global plastic deformation and existing test results on vessels made of Afnor 15CDV6 steel and maraging steels.
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