On the Application of Strain Gauges for a Structural Member Subjected to Complex Type of Loading

Abstract

Quite often test parts or structural components are simultaneously subjected to different types of loading. If a user is particularly interested in carrying out measurement corresponding to a specific loading only, then the proper use of strain gauge connections on a Wheatstone bridge circuit needs careful consideration. This article is intended to clearly demonstrate to the undergraduate mechanical engineering students how to carry out strain measurements sensitive to a particular type of loading while eliminating the contribution corresponding to unwanted loadings.