K-0511 高温下における窒化けい素セラミックス切欠材の非弾性有限要素法解析(G03-5 環境強度)(G03 材料力学部門一般講演)

概要

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The displacement rate-controlled tensile tests were performed for smooth and circumferentially notched specimens of the sintered silicon nitride ceramics in argon-gas atmosphere at 1300℃, and then the axial load-displacement response was measured. It was shown from the tests that inelastic deformation was greatly dependent on displacement rate and easier to generate at the lower displacement rate. The constitutive equation was constructed on the basis of tensile stress-strain curves in the smooth specimen. Then inelastic FEM analysis was performed for the smooth and notched specimens, using this equation. The calculated load-displacement responses quantitatively agreed quite well with those in the smooth and notched specimens, showing the validity of the proposed analysis.
一般社団法人日本機械学会の論文
2001-08-22