Three-dimensional numerical modelling of discontinuous fibre composite architectures
作者： R Luchoo , L T Harper , N A Warrior , A Dodworth
DOI: 10.1179/1743289810Y.0000000023
关键词: Truss 、 Fiber bundle 、 Finite element method 、 Aspect ratio (image) 、 Young's modulus 、 Spline interpolation 、 Ultimate tensile strength 、 Curvature 、 Materials science 、 Composite material
摘要: AbstractA three-dimensional geometrical model is presented for generating discontinuous random fibre architectures consisting of high filament count bundles. The network randomly distributes bundles in a volume using non-contact algorithm, together with Catmull–Rom spline interpolation, to provide physically representative material. Only the spines are modelled, truss elements permit fractions up 60%, no restriction on bundle aspect ratio. ABAQUS/Standard used predict tensile performance coupons varying levels out-of-plane curvature. effect curvature was found be insignificant modulus, but 34% reduction ultimate strength (UTS) observed when adjusting maximum permissible angle fibres from 1 35°. A novel method characterising degree within experimental test i...
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