Title

Strain Gage Backing Effects on Measuring Steep Strain Gradient

Document Type

Presentation

Document Subtype

Abstract

Presentation Date

6-15-2011

Conference Name

Proceedings of the International Conference on Mathematics and Engineering

Conference Location

Honolulu, Hawaii USA

Peer Review

Contributed

Abstract

Electric strain gages have been used to obtain average extensional strain over a given gage length since the 1930s. However, the literature regarding the inherent uncertainty in a gradient strain measurement is scarce. The resistive gages are produced as flat foils by printed circuit techniques, in the form of a grid on a plastic backing. The novelty of this research program is to examine the manufacturing of the strain gage by modeling the behavior of the gage. The principal sources of error that influence the measurement of stress concentration factors are studied. Recommendations for manufacturing strain gages for high strain gradient measurements are made.

Keywords

Strain gage backing, strain gradient

Disciplines

Engineering | Mechanical Engineering | Other Mechanical Engineering