Prediction Method of Fracture Strain for Non-Standardized Specimens Based on Local Absorbed Strain Energy Distribution

概要

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In tensile testing, non-standardized specimens are sometimes used to investigate the tensile characteristics. In this study, an effective method for investigating the tensile characteristics of such non-standardized specimens has been proposed. Two types of specimens made from ductile materials—standardized and non-standardized—were prepared and subjected to uniaxial tensile loads. The test results showed that there was a significant difference in the fracture strain when the non-standardized specimen was used. To evaluate the fracture strain, a new method that considered the absorbed strain energy distribution in the gauge section was proposed. Further, the validity of the proposed method was demonstrated by making comparisons with experimental results.
日本実験力学会の論文