異材接合端部における熱応力分布の特性 : log r型⇔r^<P-1>型の特異性の変化に対する熱応力分布の変化

概要

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In the previous papers, characteristics of stress fields near the apex in dissimilar materials formed from several isotropic homogeneous wedges with arbitrary angles subjected to surface traction or thermal load were theoretically clarified. The stress fields near the apex are defined by a linear combination of the singular solutions K_γ^<p-1> of typeγ^<p-1> on root p of an eigenequation in 0 < Re(p) < 1 or K_g logγ of type logγ on a double root p=1, no singularity ones K_γ^<p-1> on root p in Re(p) > 1 and the particular solution K_<pa> on root p=1. The singularity of type logγ appears at the boundary where characteristics of stress fields vary from no singularity solutions to singular solutions of typeγ^<p-1> or its reverse (Re(p) > 1 ↔ 0 < Re(p) < 1). For variations Re(p) > 1 ↔ 0<Re(p) < 1 of root p, the distributions of stress intensity K_j on p =p_j and K_<pa> on P=1 are changed at the boundary. Moreover, it is shown that characteristics of stress fields cannot be determined by only the roots of the eigenequation.
一般社団法人日本機械学会の論文
1995-11-25