Local Reinforcemente Effect of Embedded Strain Gauges

Risultato della ricerca: Other

4 Citazioni (Scopus)

Abstract

The reinforcement effect of strain gauges installed on low Young's modulus materials has receivedattention by many researchers with respect to both strain gauges installed on the surface [1,2] andembedded inside the material [3,4].In the case of strain gauges installed on the surface, the evaluation of the local reinforcementeffect gives [5] the following correction coefficient C, i.e. the ratio between the actual strain (without the strain gauge) and the strain ' measured by the strain gauge:*' 1 sgsECE (1)being* sg g , sgsg sgsg sg sgt L LE EL t t (2)where Esg is the Young’s modulus of the strain gauge, *Esg is a characteristic of the strain gaugewhich gives the strain gauge sensitivity to the reinforcement effect (reduced Young’s modulus of thestrain gauge), Es is the Young’s modulus of the specimen, tsg , Lg , Lsg are respectively thickness, totalgauge length and grid length of the strain gauge, and is the mean value of a function determined by a theoretical analysis [5]. This paper concerns the local reinforcement effect ofembedded strain gauges that are frequently used especially inside plastic and composite materials.
Lingua originaleEnglish
Numero di pagine0
Stato di pubblicazionePublished - 2010

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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