鋭い切欠きを有する平板の弾塑性解析による強度評価

抄録

In this study, the strength evaluation method of the sharp notch plate under large scale yielding condition is considered. The tensile test of carbon steel JIS S45C specimen is carried out to obtain failure stress for various notch depths and angles. The values of plastic strain of notch tip node at the specimen are computed by elastic-plastic analysis under the same mesh pattern. As a result, it is found that the failure strength of the sharp notched specimens for various notch depths and angles can be estimated by using the plastic strain at the notch tip calculated by FEM.