VUMAT for phase transformation in retained austenite of QP980 small strain rate dependent phase transformation model https://hdl.handle.net/11256/791 2026-04-11T11:14:14Z 2026-04-11T11:14:14Z Phase transformation VUMAT for QP980 Bower, Allan F. https://hdl.handle.net/11256/816 2016-08-17T11:23:03Z Phase transformation VUMAT for QP980 Bower, Allan F.