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Stiffness and Reinforcement Effect of Electrical Resistance Strain Gauges
Author(s) -
Ajovalasit A.,
D'Acquisto L.,
Fragapane S.,
Zuccarello B.
Publication year - 2007
Publication title -
strain
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.477
H-Index - 47
eISSN - 1475-1305
pISSN - 0039-2103
DOI - 10.1111/j.1475-1305.2007.00354.x
Subject(s) - strain gauge , stiffness , reinforcement , strain (injury) , modulus , electrical resistance and conductance , materials science , structural engineering , gauge (firearms) , composite material , engineering , medicine , metallurgy
The increasing use of low‐modulus materials, on which the reinforcement effect of the electrical resistance strain gauge is not negligible, has re‐opened the research interest into this issue. This study deals with the evaluation of stiffness, and of the strain gauge Young's modulus involved in the estimation of both the global and the local reinforcement effect; the relationship between the strain gauge stiffness and the local reinforcement effect is also analysed. In particular, the experimental technique used to determine the stiffness of some commercial strain gauges is described. The results show that the strain gauge stiffness alone does not permit an accurate evaluation of the local reinforcement effect.