Based on the additional decomposition theorem of deformation gradient (i. e. S-R theorem) and co-moving coordinate technique,a typical nonlinear mechanical problem, contact large deformation of rubber ring radially compressed, was computed by FEM.

• 本文基于变形梯度和分解定理(S-R定理)和拖带坐标描述法,应用有限元方法,计算了橡胶环直径方向受压接触大变形问题。