关键词: 板材热轧, 热力耦合, 有限元模拟

Abstract: A three dimensional elasto-plastic finite element model is presented for thermomechanical coupled finite deformation problems, and using the model, a slab hot rolling is computer simulated. The model includes a material flow stress model which depends on the strain, strain rate, and temperature, so that a corresponding constitutive matrix is derived. The model can be used to predict the thermal and mechanical data such as temperature, strain, strain rate distributions. The calculated results are compared with previous experimental work, by which good accuracy is found.

Key words: Finite element simulation, Slab hot rolling, Thermomechanical coupling