Tensile properties of 3D multi-layer wrapping braided composite: Progressive damage analysis

Abstract

An experimental and numerical study on mechanical properties and damage behavior of 3D multi-layer wrapping braided composite under axial tensile load is presented. The braiding process of this material is introduced and its tensile properties are obtained in tensile tests. Numerical simulations employ periodical boundary conditions, with interface elements between yarns and matrix added to improve the accuracy of prediction. 3D Hashin-type criteria and Von-Mises stress criterion are employed as damage initiation criteria for yarns and matrix, respectively. The obtained numerical results show a good agreement with the experimental data. The load-bearing capacity and failure mechanisms of 3D multi-layer wrapping braided composites under axial tensile loading are also discussed. A stress distribution shows that the axial yarns are the main load-bearing component of the composite. The main failure mode of the yarns is the yarn-matrix tensile cracking in the width direction, followed by the yarn-matrix tensile cracking in the thickness direction and fibre tensile failure. When the fibres in axial yarns begin to break, the material loses its load-bearing capacity.

Tribological behaviour of natural fibre 3D braided woven fabric reinforced PLA composites

“…23,24 Braided fabric strengthened composites have better mechanical characteristics compared to conventional woven fabric strengthened composites. 25 Xiaopei Wang 26 carried out damage behaviour study on 3D multilayer wrapping braided composites. They concluded that for the braided composites there is no compressive cracking in yarn-matrix, compressive fibre failure and shear failure in fibre-matrix.…”

Tensile properties of defect-prefabricated 3D woven composites: Experiments and simulations

“…In numerical simulations, once a component of material is damaged according to the aforementioned failure criteria, the corresponding elastic modulus at the relevant integration point is reduced to simulate the damage. In this study, the scheme of material-performance degradation developed based on literature 26,27 was adopted. The stiffness-degradation coefficients corresponding to respective failure modes are listed in Table 4.…”

A computational approach with surface-based cohesive contact for meso-scale interface damage simulation in 3D braided composites

“…[21] and Wang et al. [22] presented a meso-scale FE model, in which the interface behavior is modeled by cohesive zone model with cohesive elements, to simulate the progressive damage evolution of 3 D braided composites. Sharma et al.…”

“…Fang et al [18], Lu et al [19] and He et al [20] proposed a meso-scale finite element model considering the interface debonding to investigate the nonlinear mechanical behavior of 3 D braided composites under uniaxial tension. Zhang et al [21] and Wang et al [22] presented a meso-scale FE model, in which the interface behavior is modeled by cohesive zone model with cohesive elements, to simulate the progressive damage evolution of 3 D braided composites. Sharma et al [23] established an image-based model to determine the elastic properties of 3 D carbon/carbon composites.…”