University/Organization
Department of Civil and Mechanical Engineering
Purdue University Fort Wayne
Fort Wayne, Indiana
Department of Civil and Mechanical Engineering
Purdue University Fort Wayne
Fort Wayne, Indiana
Title
Reducing the Error in Measuring Strain Gradient Using Electrical-Resistance Strain Gages in Flexural Loading
Synopsis
This study aims to highlight the importance of managing the averaging effects of strain gages. In the measurement of strain in high stress gradient areas, the errors induced by the strain gages are inevitable and very high in many practical cases. In this study, the impact of the backing film is considered in reducing the inherent error of underestimating the peak strain. Examples are provided for the transformed gages and the results are compared with the original gages. It is demonstrated experimentally that the errors can be reduced significantly.