TY - GEN
T1 - Pseudo-ductile behavior of unidirectional fibre reinforced polyamide-12 composite by intra-tow hybridization
AU - Diao, H.
AU - Bismarck, A.
AU - Robinson, P.
AU - Wisnom, M. R.
PY - 2012
Y1 - 2012
N2 - Conventional carbon fibre reinforced plastics (CFRP) possess high specific strength and stiffness, can provide good chemical resistance and achieve long fatigue lives. However these materials are relatively brittle and have a low strain to failure and so structural failure can be catastrophic with little warning. In order to enhance the ductility of CFRP and change its catastrophic failure mode into a progressive one, carbon fibre tows with different failure strains were carefully selected and combined together into intra-tow hybrid reinforcement by using a gas-flow-assisted commingling process. This hybrid reinforcement was used to manufacture a polyamide-12 matrix composite using a polymer powder suspension impregnation method. By controlling the manufacturing parameters (speed and air flow rate in commingling process), a hybrid composite with significantly improved failure characteristics was obtained. Compared with corresponding single-fibre type composites, this hybrid composite has an improved tensile failure strain and still retains good tensile strength and stiffness properties.
AB - Conventional carbon fibre reinforced plastics (CFRP) possess high specific strength and stiffness, can provide good chemical resistance and achieve long fatigue lives. However these materials are relatively brittle and have a low strain to failure and so structural failure can be catastrophic with little warning. In order to enhance the ductility of CFRP and change its catastrophic failure mode into a progressive one, carbon fibre tows with different failure strains were carefully selected and combined together into intra-tow hybrid reinforcement by using a gas-flow-assisted commingling process. This hybrid reinforcement was used to manufacture a polyamide-12 matrix composite using a polymer powder suspension impregnation method. By controlling the manufacturing parameters (speed and air flow rate in commingling process), a hybrid composite with significantly improved failure characteristics was obtained. Compared with corresponding single-fibre type composites, this hybrid composite has an improved tensile failure strain and still retains good tensile strength and stiffness properties.
KW - Hybrid composites
KW - Intra-tow commingling process
KW - Polymer matrix composites
KW - Pseudo-ductile behaviour
UR - https://www.scopus.com/pages/publications/84903978109
M3 - Conference Contribution (Conference Proceeding)
AN - SCOPUS:84903978109
SN - 9788888785332
T3 - ECCM 2012 - Composites at Venice, Proceedings of the 15th European Conference on Composite Materials
BT - ECCM 2012 - Composites at Venice, Proceedings of the 15th European Conference on Composite Materials
PB - European Conference on Composite Materials, ECCM
T2 - 15th European Conference on Composite Materials: Composites at Venice, ECCM 2012
Y2 - 24 June 2012 through 28 June 2012
ER -