Non-linear elastic behaviour of carbon fibres of different structural and mechanical characteristic
Апстракт
Five types of polyacrylonitrile, PAN, based carbon fibres, differing in modulus, breaking strain and in crystallite orientation, have been studied. Non-Hookean behaviour was investigated by computing the tangent tensile and compression moduli as a function of strain, from the axial stress-strain response obtained in standard tensile, compression, as well as in modified flexural tests of unidirectional carbon/epoxy composites. The dependences of the tensile modulus on tensile strain of the carbon fibres were extracted from data obtained in single-filament tensile tests. Analytical expresssions for the tensile modulus-tensile strain and compression modulus-compression strain dependences in the performed test were deduced. The structural characterization of the carbon fibres was performed by X-ray diffraction on bundle of parallel fibres. The interlayer spacing d(002) and the apparent lateral dimension of the crystallites L-c were deduced by processing the 002 diffraction profiles. The es...tablished modulus-strain dependences were correlated with the fibre characteristics (breaking strain and mean modulus values), as well as with the characteristic of the 002 difraction profile and the d(002) and L-c values.
Кључне речи:
carbon fibres / carbon/epoxy composites / non-linear elasticity / crystallite preferential orientationИзвор:
Journal of the Serbian Chemical Society, 2007, 72, 5, 513-521
DOI: 10.2298/JSC0705513D
ISSN: 0352-5139
WoS: 000247579900011
Scopus: 2-s2.0-34447137044
Колекције
Институција/група
VinčaTY - JOUR AU - Djordjevic, Isidor M. AU - Sekulić, Danijela R. AU - Stevanović, Momčilo M. PY - 2007 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3204 AB - Five types of polyacrylonitrile, PAN, based carbon fibres, differing in modulus, breaking strain and in crystallite orientation, have been studied. Non-Hookean behaviour was investigated by computing the tangent tensile and compression moduli as a function of strain, from the axial stress-strain response obtained in standard tensile, compression, as well as in modified flexural tests of unidirectional carbon/epoxy composites. The dependences of the tensile modulus on tensile strain of the carbon fibres were extracted from data obtained in single-filament tensile tests. Analytical expresssions for the tensile modulus-tensile strain and compression modulus-compression strain dependences in the performed test were deduced. The structural characterization of the carbon fibres was performed by X-ray diffraction on bundle of parallel fibres. The interlayer spacing d(002) and the apparent lateral dimension of the crystallites L-c were deduced by processing the 002 diffraction profiles. The established modulus-strain dependences were correlated with the fibre characteristics (breaking strain and mean modulus values), as well as with the characteristic of the 002 difraction profile and the d(002) and L-c values. T2 - Journal of the Serbian Chemical Society T1 - Non-linear elastic behaviour of carbon fibres of different structural and mechanical characteristic VL - 72 IS - 5 SP - 513 EP - 521 DO - 10.2298/JSC0705513D ER -
@article{ author = "Djordjevic, Isidor M. and Sekulić, Danijela R. and Stevanović, Momčilo M.", year = "2007", abstract = "Five types of polyacrylonitrile, PAN, based carbon fibres, differing in modulus, breaking strain and in crystallite orientation, have been studied. Non-Hookean behaviour was investigated by computing the tangent tensile and compression moduli as a function of strain, from the axial stress-strain response obtained in standard tensile, compression, as well as in modified flexural tests of unidirectional carbon/epoxy composites. The dependences of the tensile modulus on tensile strain of the carbon fibres were extracted from data obtained in single-filament tensile tests. Analytical expresssions for the tensile modulus-tensile strain and compression modulus-compression strain dependences in the performed test were deduced. The structural characterization of the carbon fibres was performed by X-ray diffraction on bundle of parallel fibres. The interlayer spacing d(002) and the apparent lateral dimension of the crystallites L-c were deduced by processing the 002 diffraction profiles. The established modulus-strain dependences were correlated with the fibre characteristics (breaking strain and mean modulus values), as well as with the characteristic of the 002 difraction profile and the d(002) and L-c values.", journal = "Journal of the Serbian Chemical Society", title = "Non-linear elastic behaviour of carbon fibres of different structural and mechanical characteristic", volume = "72", number = "5", pages = "513-521", doi = "10.2298/JSC0705513D" }
Djordjevic, I. M., Sekulić, D. R.,& Stevanović, M. M.. (2007). Non-linear elastic behaviour of carbon fibres of different structural and mechanical characteristic. in Journal of the Serbian Chemical Society, 72(5), 513-521. https://doi.org/10.2298/JSC0705513D
Djordjevic IM, Sekulić DR, Stevanović MM. Non-linear elastic behaviour of carbon fibres of different structural and mechanical characteristic. in Journal of the Serbian Chemical Society. 2007;72(5):513-521. doi:10.2298/JSC0705513D .
Djordjevic, Isidor M., Sekulić, Danijela R., Stevanović, Momčilo M., "Non-linear elastic behaviour of carbon fibres of different structural and mechanical characteristic" in Journal of the Serbian Chemical Society, 72, no. 5 (2007):513-521, https://doi.org/10.2298/JSC0705513D . .