Effect of Notch on Strain Rate Concentration Factor of 304 Stainless Steel Bar

In this study, the notch effect of different types 304 stainless steel rod is studied because problem difficulty in measuring root strain steel, and parameters annular are analyzed. The angle, depth, radius main stress field affecting notch, mathematical expression rate concentration factor derived. order to verify accuracy theory, mechanical model bar established by finite element numerical simulation calculation. results show that theoretical elements have a high degree agreement. When angle increases, both downward trend. depth simulations an increasing increases with decreasing simulation.