複合材料としてのコンクリートの引張り強度特性に関する研究

概要

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The tensile strength of concrete is generally obtained by the splitting test because direct tensile test method has various difficulties iii practice. However, it is reported that the splitting tensile strength of concrete does not always agree with the direct tensile strength. The purpose of this study is to clarify the effects of the complicated structure of concrete on the fracture of concrete under splitting and direct tensile loadings by the experiments and the FEM analysis on a model concrete. The experimental results and FEM analysis show that the stress distribution and the fracture behavior in the model concrete are affected by the test methods resulting in the discrepancy between the splitting and direct tensile strength of the model concrete. This fact suggests that the difference of the tensile strengths obtained by the splitting test and the direct test comes from the structural complication of concrete.
日本複合材料学会の論文