表面力を受ける異材接合体と温度変化を受けるそれの接合端における応力場の関係 : 第2報, 応力場にlogγ型の特異性が生じる場合

抄録

The problem of the stress singularity near the apex in dissimilar materials under surface tractions or thermal loading is considered. In a previous paper, the stress fields with singularity of type γ^P-1 near the apex in bonded two quarter planes under surface traction ω₀ or a uniform temperature change ΔT were theoretically derived. Moreover, the relationship between the stress fields under ω₀ and ΔT was described. However, the stress fields show not only singularity of type γ^P-1, but also one of type log γ. In this paper, the stress fields with singularity of type log γ caused by ω₀ or ΔT are investigated, and a method to obtain the thermal stresses from the stresses caused by ω₀ is presented. In the method, revision functions for each component (γγ, γθ, θθ) of the stress fields caused by ω₀ are added to obtain the thermal stresses, and their functions are shown. Also, the method is verified by the finite element method (FEM).