Journal of Scientific Engineering Advances

Abstract

In realistic applications, crane hooks are used mostly under high loading conditions and subject-ed to high-stress concentrations which cause failure of this material handling equipment. Failure mainly oc curs due to high-stress concentration on the hook at a specific point. Determining these maximum stress concentrations that cause failure and the point where they occur is vital in re-ducing the failure of hooks. Therefore, FEM analyses are useful for obtaining an understanding of stress concentration on hooks that lead to failure. In this study, both analytical and numerical analyses were performed on the hook which is subjected to a vertical load of 50ton (490.5kN) for specifically selected hook material. The maximum stress resulting from analytical calculations is 1470.1MPa, which is safe as compared to the yield strength of hook material. The maximum Von Mises stress, maximum principal strain, and total deformation of hook were determined by nu-merical method. To produce more reliable results numerically on ANSYS Workbench 19.2 mesh sensitivity analysis (MSA) was performed. The meshing size dependence of maxi mum stress was studied by refinement of meshes. From the convergence study, the maximum failure stress de-termined is 1412.4MPa, which is also safe as compared to the yield strength of the material. Even if there are some variations in the results of analytical and numerical approaches, both re-sults are safe for the loading condition of the crane hook.and governance enhancement.