Fatigue and Static Loading on Composite Beam of Aluminum Alloy and Structural Steel Sheet

Abstract

In this paper, two metals of different mechanical properties were bonded and subjected to cyclic loading that produces variable, repeated and fluctuating stresses on the composite Beam. However, the fatigue and static loading were investigated and analyzed while taken into account the safety factor, life and number of cycles. In addition, having known the two materials ultimate tensile strength and endurance limit, each face sheet is analyzed in order to observe the stresses distribution on the layers. Finite element software ANSYS Workbench was used for the simulation and analysis of the composite beam. However, it is essential to understand the fatigue behavior of composite beam to avoid sudden ultimate failure, as it is the major cause of 90% mechanical failure, it tends to fail below yield strength. In general, it was observed that the top face sheet has the most stress and lower safety factor than the bottom sheet, thereby addition of materials with high endurance limit and ultimate tensile strength at the loading region will enhance the life of the composite beam, as well as the safety factor. © 2023 American Institute of Physics Inc.. All rights reserved.