Effect of Mesh Density on Finite Element Analysis Simulation of a Support Bracket

Abstract

Investigation on the effect of mesh density on the analysis of simple support bracket was conducted using Finite element analysis simulation. Multiple analyses were carried out with mesh refinement from coarse mesh of 3.5 mm to a high-quality fine mesh with element size of 0.35 mm under 15 kN loading. Controlled mesh analysis was also conducted for the same loading. At the mesh size of 0.35 mm, it has a maximum stress value of 42.7 MPa. As the element size was reduced, it was observed that below 1.5 mm (higher mesh density) there was no significant increase in the peak stress value; the stress at this level increased by 0.028 % only. Further decreased of mesh size shows insignificant effect on the stresses and displacements for the high-quality fine mesh analysis. The application of High-quality mesh control analysis showed a significant reduction in the computation time by more than 90%. Regardless of the reduction in computation time, the controlled mesh analysis achieved more than 99% accuracy as compared to high-quality fine mesh analysis. Keywords— Computation time, Finite Element Analysis, Mesh density, Support Bracket.

Device simulations with A U-Net model predicting physical quantities in two-dimensional landscapes

“…We also note that mesh size effect is a common and critical problem in mesh-based simulation theory. Therefore, mesh refinement procedure is usually adopted in the hot zone in numerical simulations, e.g., localized stress concentration of mechanism in structural mechanics analysis 23 and interface between air and earth’s surface in geo-electromagnetic modelling 24 . However, the exponentially varying mesh refinement, which is not available, seems particularly crucial for the prediction error in our U-Net model for device simulations 25 .…”