Slave surface assembly__t0_zuizhongban-1_sn is a node-based surface used with surface to surface approach. In order to obtain improved stress accuracy with this approach, an element-based surface should be used instead.If significant clearance/overclosure exists between surface pair (assembly__t0_zuizhongban-1_sn,assembly__t0_zuizhongban-1_m) and the master surface does not have rotational degrees of freedom, adjustment is recommended for correct enforcement of the tie constraint