S0302-4-5 軟材料の厚さとYoung率評価のための球圧子押込試験法(実験力学における計測・解析法の新展開(4))

概要

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Spherical indentation testing is used to measure the mechanical properties of materials because of its convenience and low-invasiveness, but it is difficult to apply it in the case of soft materials with a finite thickness and large deformation. In this paper, Young's modulus measurement using equivalent indentation strain in spherical indentation testing is carried out to evaluate the applicability of this measurement method for various soft materials. In particular, the relationship between the specimen thickness, hardness and indenter diameter are studied to formulate a function of Young's modulus and the diameter. The formulated results are evaluated by comparing between experimental and simulation results, and it is shown that the Young's modulus of soft materials with a finite thickness can be measured by the measurement method.
社団法人日本機械学会の論文
2009-09-12