Effects of Forces and Material Types on Fatigue Analysis of Beams

Abstract

This numerical and statistical study deals with the evaluate the effects of forces and material types on safety factor and equivalent alternating stress of beams made of metal materials. Numerical calculations were performed by using ANSYS Workbench software. Design of analyzes based on different control factors was determined utilizing Taguchi L9 orthogonal array design consisting of two control factors consisting of three levels. The first and second control factors were chosen as applied force and material type, respectively. In the finite element modeling, beams with clamped-free boundary conditions were considered. Determination of optimal levels of all variable control factors was found using signal-to-noise ratio analysis. The contribution rate and significance level of all control factors on the safety factor and equivalent alternating stress were calculated utilizing analysis of variance. According to the results calculated from this study, the optimum results for safety factor and equivalent alternating stress of beams were obtained by using the first levels of all control factors. While the increase in the applied force values causes a decrease in the safety factor, it leads to an increase in the equivalent alternating stress.

Keywords

• Safety factor
• Material
• Beam
• ANSYS
• Taguchi method

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