【摘要】 一般楔形体受面力作用时,其应力及位移有时会变为无限大。本文继续[1]的工作,分析均匀正交异性楔和两种不同正交异性复合楔的应力奇异性问题。由于假定了G_rθ=（（E_rE_θ）/（1/2））/(2(1+(μ_rθμ_θr)/（1/2）),可用解析法得到应力奇异阶次为γ^-s型。对于均匀正交异性楔s只与材料弹性模量比值平方根kl=（E_θ/E_r）/（1/2）有关;对于正交异性复合楔,当k＇=k＇＇,s与复合楔中材料剪切模量比值e(=G_rθ^＇/G_rθ^＇＇)是无关的。更多还原

【Abstract】 For general wedges being subjected to traetions, the stresses and displace ments of which sometimes may become infinite. This paper gives a research after the paper [1] to analyse the singularties of the contact stress field of two homogeneous and orthotropic wedges as well as two dissimilar orthotropic composite wedges. On the supposition G_rθ=（E_rE_θ）^1/2/2(1+(μ_rθμ_θr^1/2) singularities of the type r^-s may be obtained by use of the analytic method For homogeneous and orthotropic wedges, s is related to the square root of the ratio of moduli of elasticity of the material in the principal directions （E_θ/E_r）^1/2=K. For composite wedges of orthotropic materials,when K’= K", s is not related to the ratio of moduli of elasticity of shear in the principal directions G’_rθ/G"_rθ=e.更多还原