Numerical Investigation on the Fatigue Behavior of the Composite Tube Subjected to the Variable Load: FEM Analysis

In this work, a numerical examination of the fatigue behavior of the composite tube that was subjected to a variable load was carried out with the help of the static structural tool. By the findings, the numerical results have been checked. Through the utilization of the static structural tool within the ANSYS program, fatigue behavior was examined. The GOODMAN theory was utilized throughout the entirety of the investigation to conduct the tiredness behavior analysis for the current study. The stress life of the current tube, which is being subjected to a variable load, has reached 10^6 according to the numerical data obtained. In addition, to ensure the composite construction's longevity, the biaxiality indication has been examined appropriately. About the biaxiality indicator, the numerical findings demonstrated that the highest possible value reached 0.9, while the lowest possible value reached -1. To put it another way, the stress reached 1.7 MPa and experienced concentration at the highest strength, although the numerical data suggested that the lowest equivalent stress was 0.03. This is because the stresses were concentrated at the greatest strength.