Dr. Krishnan Sivaraman

Abhishek Singh

Abstract

Lamellar Tearing is a form of cracking that occurs in the plate material due to the combination of high localized stresses by the weldments and low ductility of the plate in through thickness direction. This paper presents a typical case study where the problem of lamellar tearing was faced during the fabrication of one of the equipment. The equipment had a typical configuration of double tube sheet welded to spacer shell, where cracks were observed in the spacer shell after the completion of tube sheets to spacer shell welding. Paper also describes details of the various factors contributing to lamellar tearing and certain design considerations for effectively overcoming this phenomenon

Keywords- Lamellar Tearing, Case study, Joint design