LAUSR

Abstract Suspension bracket mounted on a cross-section part and subjected to uneven loads fail often due to fatigue cracks and vibration mainly in the welded regions and sudden change in cross sections. It is important to consider and check the key aspects of fatigue failure mode and fatigue life by using Finite Element Analysis (FEA) techniques to overcome these failures. This paper aims at investigating the premature failure of the bracket with generalized force elements in dynamic load conditions for the existing and proposed bracket model. Linear elastic finite element analysis was used to predict the stress states. By using the Scanning Electron Microscope (SEM) Fractography test, the failure bracket results indicates that predicted life greatly influence rib thickness and loading conditions. FEA is the cause of the evaluation system for the safe stress value of a proposed model, which calculates the corresponding life cycle value.