Investigation and failure analysis for Camshaft

The main objective of writing this report on the failure of crankshaft is to investigate the characteristic of crankshaft after experienced complex of loading in a long period of services. Crankshaft is an important engine component of internal combustion engine with complex geometry which is subjected to fluctuating or cyclic loads often resulting in fatigue failures. The sudden failure of crankshaft made researchers and academia to investigate the problem. Accurate investigation of fatigue life is very important to insure safety of components and its reliability. This report presents an investigation on crankshaft by performing important experimental techniques. Hardness of the camshaft and bending test has been done to get the some characteristic of the camshaft. Last but not least, by using scanning electron microscopy, the microstructure of the fractured camshaft had been investigated. Discussion on preventing from failure on camshaft is also presented in this report