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采用Knowles和Sternberg的本构方程，应用分区法，rn对平面应变情况下橡胶类材料典型缺陷—缺口附近的应力奇异场进行了大变形分rn析．推导得出了缺口附近大变形奇异场的渐进方程，并对其进行了数值计算．给rn出了相应的曲线，揭示了橡胶类材料缺口附近的应力奇异性与缺口角度的关系．“,”With the constitutive equation rnsupplied by Knowles and Sternberg and the sector division method the large rndeformation analysis of stress singular field near the notch,a typical rndefect of rubber-like material under the condition of plane strain is rnperformed.The asymptotic equation of the large deformation singular field rnnear the notch tip is solved numerically.The calculation curves are supplied.rnAnd the relation between the stress singularity with the notch angle is rnrevealed.