WELD MAGAZINE ARTICLE: TENSILE FRACTURE MECHANISM INVESTIGATION USING DIGITAL IMAGE CORRELATION IN SUBMERGED ARC WELD OF X100 LINEPIPE MATERIAL

Overmatching of tensile strength properties is one of the most important considerations in order to maintain pipeline integrity during fabrication. This is particularly important in the case of strain-based design, where it is crucial to understand the mechanism of fracture and strain distribution during loading either in construction or in service. However, the fracture initiation sources during tensile tests remain a debated issue. One can only generalize that hard phases and inclusions are often indicated as source of fracture initiation during the late stage of fracture involving microvoid coalescence. Read Full Article Here.