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A perspective is given on some of the difficulties in developing of practical equations for use by designers in predicting the wear life of mechanical components. Several reasons are given, beginning with the presence of authors and researchers in the field who are from very different educational backgrounds from each other. Secondly, authors write from very different perspectives ranging from the strictly empirical to the scientific. Thirdly, there has not been a very broad effort to determine which of the material properties usually found in wear equations are intrinsic, relevent or unique. The best approach to wear modeling is to develop an organized way to accumulate empirical results from tests that simulate practical systems and build models from these data.
Wear, Modeling, Testing, Design, Tribology
Professor of Mechanical Engineering, University of Michigan, Ann Arbor, MI