Definition of area of the maximum shear deformations for CFRP samples on Iosipescu method, with use of optical system of measurements

Ilichev A.V., Gubin A.M., Akmeev A.R., Ivanov N.V.
UDC
620.171.2
DOI
10.18577/2307-6046-2018-0-6-99-109
Article PDF (Russian) (1.01 MB)
How to cite
Ilichev A.V., Gubin A.M., Akmeev A.R., Ivanov N.V. Definition of area of the maximum shear deformations for CFRP samples on Iosipescu method, with use of optical system of measurements // Proceedings of VIAM. 2018. No. 6. DOI: 10.18577/2307-6046-2018-0-6-99-109. URL: https://test.viam.ru/en/journal/2018/6/10
Keywords
ASTM D5379, digital image correlation, shear in planes, shear according to Iosipescu, carbon fiber reinforced polymer, composite material, GOST R 56799.
Abstract

In this work researches nature of change of area of localization of the maximum shear deformation have been provided when testing carbon plastic specimens in four planes on the ASTM D5379 standard (GOST R 56799). In article there are two kinds of carbon fiber-reinforced polymer. First based on carbon fabric and second based on carbon roving (with orientation of fibers only in one direction). Measurements of deformation field of sample were carried out by means of optical system of digital image correlation (DIC). The question of influence of different length of site of measurement of deformation as for digital extensometers (DIC), and for pasted strain gages, on reliability of the received values also is considered.

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