Review Paper on the Faliure Analysis of Weld: Neck Flanges

The modern mechanised world depends largely on several mechanical components to survive each day, one such component is the flange, and any pipe interconnection requires a flange, today the usage of pipes in different fields’ ranges from city water distribution networks to sub sea oil transportation to cryogenic applications. Hence it was deemed that the study of such a critical component in today’s industrialised world was very much important and thus this study was taken up to analyse the various failure criterions of welded neck flanges and to optimize their performance in service and also to come up with standards and procedures in their manufacturing and integration withlarger systems. The inferences obtained were a result of several metallographic, hydrostatic and material tests, along with multi-dimensional analysis using computer models of the flange in stress and thermal loads.