新圧裂試験法によるぜい性材料の引張強さ評価法

概要

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The indirect tension test, so called splitting test, is one of simple and effective methods for the determination of the tensile strength of brittle materials. But the calculated tensile strength is not always valid, because of the deformation at loaded parts of cylindrical specimen, the fracture criterion applied and so on. In this paper, a new indirect tension test, of which the loaded parts of specimen are cut parallel to each other, is proposed. Furthermore, the Mohr criterion is applied as the fracture criterion of the test method. The effects of the load conditions and the material properties of brittle materials for this method are numerically analized by the FEM and experimentally by many experiments with the resin-mortar specimens. As the result of the analysis and experiments both, a method to estimate the accurate tensile strength of brittle materials was established by using the indirect tension test load and the compressive strength of the material.
一般社団法人日本機械学会の論文
1984-05-25