PERHITUNGAN KEAUSAN PIN PADA SISTEM KONTAK SLIDING PIN-ON-DISC MENGGUNAKAN METODE ANALITIK DAN METODE ELEMEN HINGGA

Abstract

Wear is one of the phenomena which plays important role in the life time designing of the mechanical component. Wear, in engineering design, should be considered due to its relation in material loss. The better engineering design of the mechanical component will reduce wear, results the lower energy loss, and prolong the component life time. There are three types of wear: mechanical, chemical and thermal. Sliding contact system in tribometer, i.e. pin-on-disc test, is one of the examples of the mechanical wear. Pin-on-disc is one of the most popular tribometer to conduct an experiment in wear prediction but this experimental research requires a large number of experiments, time and costs. Therefore, finite element and analytical solution should be the more commonly used approach to predict the wear behavior of a pair of materials. The prediction of wear by analytical solution approach has been used by Archard, Sarkar and GIWM (Global incremental wear model) by Hegadekatte, while finite element approach has been studied by Podra for 2D analysis and Hegadekatte for 3D analysis. This research reports the comparison between the analytical and finite element approach in predicting wear. The results show that there is 15.36% deviation between GIWM developed by Hegadekatte and present GIWM developed by the author, 2.69% deviation between FEM developed by Hegadekatte and present FEM developed by the author and 6.58% between present GIWM developed by the author and present FEM developed by the author. Keywords: wear modeling, pin on disc, analytical model, finite element