ANALISIS FATIGUE LIFE PADA CHASSIS SIDE DUMP TRUCK 085 DENGAN METODE ELEMEN HINGGA

Abstract

Side dump trucks must be ensured to be in good condition and able to safely support the load. Usually, in the transportation process, repetitive stresses occur that can cause fatigue over a period of time, which affects the construction life. This journal objective is to analyze and evaluate the fatigue life value of the chassis frame to understand its effect on stress location, highest stress value, and construction life using Ansys workbench software. Modeling is carried out using Autodesk Inventor software and converted into Ansys for simulation so that the stress range value is obtained for each loading. Furthermore, manual fatigue life calculations were carried out with reference to AWS D1.1.  The simulation results showed that the highest stress occurred within the area inside the support hanger. The highest stress range occurs in 95 tons loading which is 125.57 MPa, that has a life of 75.93 years. While, the lowest stress range occurs in 85 tons loading which is 112.35 MPa, that has a lifespan of 106.04 years. The result of this study show that the greater the load the smaller the construction life.