Abstract
This study aims to predict the fatigue life of the AISI 1513 carbon steel as the material for the vehicle lower arm subjected to road strains. Measurement of the strain signals was done by attaching a strain gauge at the left lower arm and driving the vehicle on clockwise and counter-clockwise roads at a speed of 30 km/h. According to the results based on the strain-life approach, the clockwise road gave the fatigue life of 2,600,000 cycles to failure, which was 1,862 % lower than the counter-clockwise road. It indicated that when the vehicle turned to the right, the lower arm on the left side subjected to a higher strain, resulting in a shorter fatigue life.
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