セラミックスと金属の接合部の信頼性評価 : 第3報、熱弾性および熱弾塑性解析による界面部熱応力に対する異材接合体の形状変化の影響の比較検討

概要

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The bonding of ceramics and metals is an effective method for applying ceramics to structural materials. The previous paper noted that high stress concentrations are induced only at the narrow region near the outer surface of ceramics, and that the stress concentration can be reduced by modifying the shape of the ceramics. In the present paper, the effect of the modification of the ceramics geometry on the stress concentration in the thermoelastic-plastic analysis is compared with that in the thermoelastic one. The values of the stress concentration in the axial direction have a tendency to increase with reducing the elastic modulus for the metals. The relationship between the ceramics geometry and the stress concentration in the thermoelastic-plastic analysis can be qualitatively estimated from that in the thermoelastic model by changing the elastic constant into the work hardening modulus for the metals.
一般社団法人日本機械学会の論文
1989-05-25