Abstract: In this paper, the boundary element method is applied to calculate the contact pressure of work roll. A new formula to calculate internal stresses near the surface of the body by BEM and a new model to calculate quenching residual stresses are given. Accoding to the comprehensive stress, the distribution of maximum shear stress in the surface layer of work is obtained, the reasons of spalling on the work roll surface are analyzed, and some improvement methods are suggested.

Key words: 边界元法, 剥落损伤, 工作辊, 综合应力