日本機械学会論文集 A編
Online ISSN : 1884-8338
Print ISSN : 0387-5008
傾斜機能材料開発のための小形パンチ試験法に関する研究
奥田 誠一斎藤 雅弘橋田 俊之高橋 秀明
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57 巻 (1991) 536 号 p. 940-945

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This paper discusses the use of a small punch (SP) testing method to determine the elastic modulus and fracture strength of the material. Numerical analyses using the FEM were carried out to calibrate a SP specimen. Three loading modes were analysed to examine the punch tip effect on the deformation and fracture behaviour. Several ceramics and ceramics/metal composites were tested using the SP method, and their mechanical properties were determined using the results of FEM analyses. It is shown that the SP method provides a reliable means for measuring the elastic modulus. Furthermore, it is demonstrated that the fracture strength determined by the SP method shows a good correlation with the bending strength obtained from the three-point bend specimen which is commonly used for the determination of the fracture strength of ceramics.

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