Investigation is conducted following the discovery of significant deformations and the
presence of cracks in the vicinity of welded joints at the superheater tubes of a heat recovery
steam generator (HRSG) in a Malaysian Electricity Company's power plant. This study
performs the finite element (FE) analyses in order to identify the possible root cause failure
of the deformed superheater tubes using software package of MSC PATRAN/NASTRAN.
The locations of maximum stress induced by the deformed tube are determined. The …