URL：https://www.researchgate.net/publication/341012450/figure/fig1/AS:885645614534659@1588165777936/Weld-center-surface-crack-in-a-finite-thickness-plate.png
掲載元：https://www.researchgate.net/figure/Weld-center-surface-crack-in-a-finite-thickness-plate_fig1_341012450
