Size effect in carbon fiber/epoxy resin composite
Апстракт
Size effect in carbon fiber/epoxy resin unidirectional composites was studied, by analyzing this effect in carbon fibers, as well as, in unidirectional composites themselves. Carbon fibers were tested by the single-filament tensile test with different gauge lengths (measured strengths and failure strains), while the unidirectional composite coupons of different dimensions were tested by standard static tensile tests (measured strength values). The obtained tensile strengths were analyzed according to the Weibull statistical strength theory for brittle materials, by comparing the variations in sample strengths (failure strains) during increase in samples dimensions with the variability scatter of results for individual samples around the mean values. Performed analysis has shown that the size effect in carbon fibers can fully be described by the Weibull theory. However, due to complex failure propagation, composites exhibit pronounced size effect, but followed by reduced strength variab...ility. It makes detected composites size effect behavior different from that in brittle materials.
Кључне речи:
carbon fiber / composite failure / composites / epoxy resin / size effect / strength / tensile testsИзвор:
Materials Science Forum, 2003, 413, 207-212Напомена:
- 4th Yugoslav-Materials-Research-Society Conference, Sep 10-14, 2001, Herceg Novi, Yugoslavia
Колекције
Институција/група
VinčaTY - JOUR AU - Stevanović, MM AU - Elhisnavi, AA AU - Pesikan, DR PY - 2003 UR - https://vinar.vin.bg.ac.rs/handle/123456789/6354 AB - Size effect in carbon fiber/epoxy resin unidirectional composites was studied, by analyzing this effect in carbon fibers, as well as, in unidirectional composites themselves. Carbon fibers were tested by the single-filament tensile test with different gauge lengths (measured strengths and failure strains), while the unidirectional composite coupons of different dimensions were tested by standard static tensile tests (measured strength values). The obtained tensile strengths were analyzed according to the Weibull statistical strength theory for brittle materials, by comparing the variations in sample strengths (failure strains) during increase in samples dimensions with the variability scatter of results for individual samples around the mean values. Performed analysis has shown that the size effect in carbon fibers can fully be described by the Weibull theory. However, due to complex failure propagation, composites exhibit pronounced size effect, but followed by reduced strength variability. It makes detected composites size effect behavior different from that in brittle materials. T2 - Materials Science Forum T1 - Size effect in carbon fiber/epoxy resin composite VL - 413 SP - 207 EP - 212 UR - https://hdl.handle.net/21.15107/rcub_vinar_6354 ER -
@article{ author = "Stevanović, MM and Elhisnavi, AA and Pesikan, DR", year = "2003", abstract = "Size effect in carbon fiber/epoxy resin unidirectional composites was studied, by analyzing this effect in carbon fibers, as well as, in unidirectional composites themselves. Carbon fibers were tested by the single-filament tensile test with different gauge lengths (measured strengths and failure strains), while the unidirectional composite coupons of different dimensions were tested by standard static tensile tests (measured strength values). The obtained tensile strengths were analyzed according to the Weibull statistical strength theory for brittle materials, by comparing the variations in sample strengths (failure strains) during increase in samples dimensions with the variability scatter of results for individual samples around the mean values. Performed analysis has shown that the size effect in carbon fibers can fully be described by the Weibull theory. However, due to complex failure propagation, composites exhibit pronounced size effect, but followed by reduced strength variability. It makes detected composites size effect behavior different from that in brittle materials.", journal = "Materials Science Forum", title = "Size effect in carbon fiber/epoxy resin composite", volume = "413", pages = "207-212", url = "https://hdl.handle.net/21.15107/rcub_vinar_6354" }
Stevanović, M., Elhisnavi, A.,& Pesikan, D.. (2003). Size effect in carbon fiber/epoxy resin composite. in Materials Science Forum, 413, 207-212. https://hdl.handle.net/21.15107/rcub_vinar_6354
Stevanović M, Elhisnavi A, Pesikan D. Size effect in carbon fiber/epoxy resin composite. in Materials Science Forum. 2003;413:207-212. https://hdl.handle.net/21.15107/rcub_vinar_6354 .
Stevanović, MM, Elhisnavi, AA, Pesikan, DR, "Size effect in carbon fiber/epoxy resin composite" in Materials Science Forum, 413 (2003):207-212, https://hdl.handle.net/21.15107/rcub_vinar_6354 .