Effect of Fibre Packing on Random Variability of Compressive Strength of Unidirectional Carbon Fibre Reinforced Plastic
|
摘要
Compression tests on twenty unidirectional(UD) carbon fibre reinforced plastic(CFRP) specimens are conducted, the statistics on the measured compressive strength is calculated, and the fracture surface is characterized. Two types of different fracture surface are experimentally observed, and they are corresponding to very different values on the compressive strength. A finite element(FE) analysis is conducted to investigate the influence of random fibre packing on the compressive strength. And a riks method(provided in ABAQUS software) is applied in FE model to analyze fibre buckling behaviour in the vicinity of compressive failure. The FE analysis agrees well with the experimental observation on the two types of buckling modes and also the partition of compressive strength. It is clearly shown that the random fibre packing lays a significant influence on the random variability of compressive strength of CFRP.
Compression tests on twenty unidirectional(UD) carbon fibre reinforced plastic(CFRP) specimens are conducted, the statistics on the measured compressive strength is calculated, and the fracture surface is characterized. Two types of different fracture surface are experimentally observed, and they are corresponding to very different values on the compressive strength. A finite element(FE) analysis is conducted to investigate the influence of random fibre packing on the compressive strength. And a riks method(provided in ABAQUS software) is applied in FE model to analyze fibre buckling behaviour in the vicinity of compressive failure. The FE analysis agrees well with the experimental observation on the two types of buckling modes and also the partition of compressive strength. It is clearly shown that the random fibre packing lays a significant influence on the random variability of compressive strength of CFRP.
Compression tests on twenty unidirectional(UD) carbon fibre reinforced plastic(CFRP) specimens are conducted, the statistics on the measured compressive strength is calculated, and the fracture surface is characterized. Two types of different fracture surface are experimentally observed, and they are corresponding to very different values on the compressive strength. A finite element(FE) analysis is conducted to investigate the influence of random fibre packing on the compressive strength. And a riks method(provided in ABAQUS software) is applied in FE model to analyze fibre buckling behaviour in the vicinity of compressive failure. The FE analysis agrees well with the experimental observation on the two types of buckling modes and also the partition of compressive strength. It is clearly shown that the random fibre packing lays a significant influence on the random variability of compressive strength of CFRP.
引文
[1] SRIRAMULA S,CHRYSSANTHOPOULOS M K. Quantification of uncertainty modelling in stochastic analysis of FRP composites[J]. Composites Part A: Applied Science and Manufacturing, 2009, 40(11): 1673-1684.
[2] JEONG H K,SHENOI R A. Probabilistic strength analysis of rectangular FRP plates using Monte Carlo simulation[J]. Computers & Structures, 2000, 76(1/2/3): 219-235.
[3] SRIRAMULA S, CHRYSSANTHOPOULOS M K. Probabilistic models for spatially varying mechanical properties of in-service GFRP cladding pcanels[J]. Journal of Composites for Construction, 2009, 13(2): 159-167.
[4] CHIACHIO M, CHIACHIO J, RUS G. Reliability in composites A selective review and survey of current development[J]. Composites Part B Engineering, 2012, 43(3): 902-913.
[5] ROSEN B W. Mechanics of composite strengthening [J]. Fibre Composite Caterials,1964.
[6] BUDIANSKY B,FLECK N A.Compressive failure of fibre composites[J]. Journal of the Mechanics and Physics of Solids, 1993, 41(1): 183-211.
[7] SUTCLIFFE M P F. Modelling the effect of size on compressive strength of fibre composites with random waviness[J]. Composites Science and Technology, 2013, 88(14): 142-150.
[8] ALLIX O, FELD N, BARANGER E, et al. The compressive behaviour of composites including fiber kinking: modelling across the scales[J]. Meccanica, 2014, 49(11): 2571-2586.
[9] ZHANG L, ZHANG S, JIANG Y, et al. Compressive behaviour of fibre reinforced plastic with random fibre packing and a region of fibre waviness[J]. Journal of Reinforced Plastics and Composites, 2016, 36(5):323-337.
[10] SUTCLIFFE M P F, LEMANSKI S L,SCOTT A E. Measurement of fibre waviness in industrial composite components[J]. Composites Science and Technology, 2012, 72(16): 2016-2023.
[2] JEONG H K,SHENOI R A. Probabilistic strength analysis of rectangular FRP plates using Monte Carlo simulation[J]. Computers & Structures, 2000, 76(1/2/3): 219-235.
[3] SRIRAMULA S, CHRYSSANTHOPOULOS M K. Probabilistic models for spatially varying mechanical properties of in-service GFRP cladding pcanels[J]. Journal of Composites for Construction, 2009, 13(2): 159-167.
[4] CHIACHIO M, CHIACHIO J, RUS G. Reliability in composites A selective review and survey of current development[J]. Composites Part B Engineering, 2012, 43(3): 902-913.
[5] ROSEN B W. Mechanics of composite strengthening [J]. Fibre Composite Caterials,1964.
[6] BUDIANSKY B,FLECK N A.Compressive failure of fibre composites[J]. Journal of the Mechanics and Physics of Solids, 1993, 41(1): 183-211.
[7] SUTCLIFFE M P F. Modelling the effect of size on compressive strength of fibre composites with random waviness[J]. Composites Science and Technology, 2013, 88(14): 142-150.
[8] ALLIX O, FELD N, BARANGER E, et al. The compressive behaviour of composites including fiber kinking: modelling across the scales[J]. Meccanica, 2014, 49(11): 2571-2586.
[9] ZHANG L, ZHANG S, JIANG Y, et al. Compressive behaviour of fibre reinforced plastic with random fibre packing and a region of fibre waviness[J]. Journal of Reinforced Plastics and Composites, 2016, 36(5):323-337.
[10] SUTCLIFFE M P F, LEMANSKI S L,SCOTT A E. Measurement of fibre waviness in industrial composite components[J]. Composites Science and Technology, 2012, 72(16): 2016-2023.