Evaluation of flexural modulus of carbon 3D orthogonal woven fabric using atrilinear model
Bending behaviour of 3D orthogonal carbon weave composite reinforcement has been investigated. The threepointbending test method has been employed and the load-deflection curves are examined. The influence of carbonfibre tow type, yarn insertion and tension of longitudinal yarns on fibre volume fraction and bending properties ofnon-crimp 3D orthogonal carbon weave is discussed. It is found that carbon fibre bending properties due to crosssectionshape and geometry have a great impact on bending behavior of non-crimp 3D orthogonal carbon weave.Increasing the number of transversal yarns layers and tension of longitudinal yarns increases both fibre volumefraction and bending modulus of non-crimp 3D orthogonal carbon weave. From the bending properties calculated, thefactors for improving fibre volume fraction and bending behavior of non-crimp 3D orthogonal carbon weaves arediscussed.
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