thermal–mechanical finite element analysis of evolution of surface cracks during slab rolling，成果详细信息-凯发网

closure and growth of transverse cracks on slab surface severely affects the quality of rolled products. a finite element (fe)-based modeling on thermal and mechanical behavior of transverse cracks during hot rolling has been carried out using ls-dyna software. the behavior has been simulated at a range of crack sizes, crack open-angles, friction factor between roll and slab. the maximum compressive and tensile stress at crack tip during rolling, the crack open-angle and the crack height after rolling, and the temperature on crack surface during rolling were analyzed. the mechanism of crack behavior during rolling is discussed.