Application of optical deformation sensors for estimating the deformability of CFRP samples near the stress concentrators

Shershak P.V., Yakovlev N.O., Oreshko E.I.
UDC
620.17
DOI
10.18577/2307-6046-2022-0-1-111-122
Article PDF (Russian) (1.05 MB)
How to cite
Shershak P.V., Yakovlev N.O., Oreshko E.I. Application of optical deformation sensors for estimating the deformability of CFRP samples near the stress concentrators // Proceedings of VIAM. 2022. No. 1. DOI: 10.18577/2307-6046-2022-0-1-111-122. URL: https://test.viam.ru/en/journal/2022/1/11
Keywords
CFRP, optical strain gauge, non-contact strain gauge, video extensometer, strain, gauge base, mark
Abstract

The results of the calculations and the obtained experimental data show the need to take into account the distribution of strain fields on samples with stress concentrators for the selection of the correct gage of optical strain gauges. The ability to install certain gage of optical sensors with specific geometric parameters of the sample allows one to obtain the values of the stiffness and deformation characteristics on the sample with holes close to the values of the material characteristics, which can be used, for example, when carrying out research work in conditions of limited materials.

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