The delamination crack and its effect on the fracture of pipeline steel were investigated by drop-weight tear test(DWTT)at different temperature and micrograph analysis.

Compared to tear resistance and tensile strength, fracture toughness is more dependent on fiber length.

Plain film findings of an anterior cruciate ligament tear include avulsion of the tibial eminence, a Segond fracture as well as a deepened intercondylar groove.