![Sample our Social Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110822/TOC-Subject-Sample-2021-Social-Sciences.jpg"})
ABSTRACT
Hinge fractures form when primary compression just below the fracture process zone is lost at a faster rate than that from outward leverages on the flake's termination. Hinge rolls of 90–180 degree develop a second flaking platform subsequent to the initial 90+ degree roll, a characteristic that identifies early stage hinges.