A field recording system with applications to fatique analysis

Abstract Recent advances in analytical techniques for estimating fatique crack initiation lives of structures and components have made fatique analysis a valuable tool for design engineers. A means of collecting long term (months) data, using microcomputer devices, and interpreting the data in a manner useful to the engineer, is described. The role of fatique and service history analysis in the overall product design analysis is reviewed and the requirement of a data collection system defined.