Abstract
This research aims to investigate the possibilities of alternative non-conventional specimens for friction calibration. From literature survey it is observed that researchers have made attempts to investigate alternate specimens for friction calibration. It is found that ring compression test is recommended as the standard test for determination of coefficient of friction, because it gives reliable results. There is need to search other friction of friction calibration specimens, which are in same conformity as ring compression test. Two different solid geometry specimens are tried for friction prediction using computer simulation techniques. Finite Element analyses of the compression test are carried out in order to study the deformation behaviour with respect to friction. Based on the deformation studies, correlation has been made between diameter ratios and friction. The deformed radii at various locations for different friction conditions are recorded and it can be observed, that there is continuous decrease in end radius with respect to friction. Friction calibration curves for these specimens are generated. In order to validate the predictability of these specimens, real experiments on them are carried out. Rings of standard dimensional ratio 6:3:1 in the same machine. Friction predictions from both specimen are found to be in close match, proposed alternate specimen offers a powerful tool for friction prediction in the absence of ring specimen.
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