Multi-scale damage modelling of 3D woven composites under uni-axial tension

Dai, Shuyan; Cunningham, Paul

doi:10.1016/j.compstruct.2016.01.103

Cited by 79 publications

(32 citation statements)

References 30 publications

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“…Once a damage initiation criterion is satisfied, the corresponding failure mode will develop into a propagation region, and further loading will degrade the material stiffness coefficients . In accordance with ref., ref., and the Abaqus user's manual, the evolution law in this paper was based on the dissipation of fracture energy during the damage progress, and the damage variable was governed by an equivalent displacement.…”

Section: Progressive Damage Modelsupporting

confidence: 65%

Effect of Random Void Defects on the Mechanical Behavior of C/C Braided Composites

Zhu

2018

Adv Eng Mater

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Carbon/carbon (C/C) composites are widely used in engineering due to their superior mechanical performance. However, manufacturing defects, such as voids and micro-cracks, seriously affect the C/C material and may initiate microstructural damage. In this paper, finite element models with random void defects are constructed to analyze the progressive damage behavior of C/C braided composites subjected to uniaxial tension. Because Hashin's criteria may not accurately predict the onset of failure for the braided composites, an improved damage initiation criterion based on Hashin's theory is proposed. A new damage evolvement model that is controlled by the material fracture energy of the textile composites and equivalence displacements is proposed. A Monte Carlo algorithm program is written to randomly assign individual elements as "void defects" in the carbon fiber yarns, carbon matrix, and fiber yarn-matrix interface. Based on numerical analysis, the influence of the volume fraction of voids in three zones on the mechanical properties of the C/C composites is investigated. The numerical simulation results show that although the braided fiber yarns reduce the effect of random void defects on the elastic modulus and tensile strength, the influence of matrix defects cannot be avoided.

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Section: Progressive Damage Modelsupporting

confidence: 65%

Effect of Random Void Defects on the Mechanical Behavior of C/C Braided Composites

Zhu

2018

Adv Eng Mater

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“…Lu et al [9] studied the stress-strain and progressive failure behaviors of 2.5D woven composites subjected to the axial tensile loading by using a two-step multi-scale method. Recently, Dai et al [10] presented a detailed mosaic macro model to predict the elastic and damage progressive process of 3D woven composites. Bassam ES et al [11] developed multi-scale modeling of strongly heterogeneous 3D woven composite structures based on a spatial Voronoi tessellation.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Macro-Scale Mechanical Behaviors of 3D Orthogonal Woven Composites using a Voxel-Based Finite Element Model

2018

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A study is conducted with the aim of developing voxel-based finite element method related to the whole fiber distribution for predicting the macro-mechanical properties of 3D orthogonal woven composites. For the rationality of this model, multi-scale finite element method, which is on the basis of the surface and interior representative volume cells, and digital image correlation tests are carried out. The results show that the proposed voxel-based finite element method is capable of precisely calculating the macro-level properties of 3D orthogonal woven composites, validated by the comparison the mechanical behaviors as well as the full-field strain fields. Keywords 3D orthogonal woven. Hybrid composites. Mechanical properties. Voxel-based finite element method. Macro-scale finite element method

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“…As simple methods to analyses composites failure, the major limitation of the maximum-stress and maximum-strain criteria is that they ignore the interaction between stresses and strains in the composites. Therefore, they were mostly applied to specific constitutive material elements, such as failure of fibre (Mao et al 2013), yarns (Dai and Cunningham, 2016) or pure matrix resin Qi et al 2014).…”

Section: Modelling Mechanical Behaviour Of Braided Compositesmentioning

confidence: 99%

“…This section introduces some recent predictive models developed by various authors to evaluate damage of braided composites under static loading. (Dai and Cunningham 2016); c the mosaic model (Dai and Cunningham 2016); d the sub-cell model (Wan et al 2015); e CATIA (Gideon et al 2015); f SolidWorks (Ji et al 2014) Criteria for failure initiation A typical progressive-damage model (PDM) comprises three parts: stress analysis, failure analysis and materialproperty degradation (Zhou et al 2013). These parts are implemented in an iterative procedure performed until the final failure occurs.…”

Section: Modelling Mechanical Behaviour Of Braided Compositesmentioning

confidence: 99%

“…The main advantage was that the mesoscale models obtained with these methods could be meshed easily. However, this scheme faced the challenges of internal continuity and stress-singularity problems, which were caused by distinctive elastic properties of two adjacent mosaic blocks (Dai and Cunningham, 2016). Also, realistic meso-geometrical configurations were ignored in the topological methods.…”

Section: Introductionmentioning

confidence: 99%

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Modelling of Damage Evolution in Braided Composites: Recent Developments

Wang

Roy

Zhong

2017

Mech Adv Mater Mod Process

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Composites reinforced with woven or braided textiles exhibit high structural stability and excellent damage tolerance thanks to yarn interlacing. With their high stiffness-to-weight and strength-to-weight ratios, braided composites are attractive for aerospace and automotive components as well as sports protective equipment. In these potential applications, components are typically subjected to multi-directional static, impact and fatigue loadings. To enhance material analysis and design for such applications, understanding mechanical behaviour of braided composites and development of predictive capabilities becomes crucial. Significant progress has been made in recent years in development of new modelling techniques allowing elucidation of static and dynamic responses of braided composites. However, because of their unique interlacing geometric structure and complicated failure modes, prediction of damage initiation and its evolution in components is still a challenge. Therefore, a comprehensive literature analysis is presented in this work focused on a review of the state-of-the-art progressive damage analysis of braided composites with finite-element simulations. Recently models employed in the studies on mechanical behaviour, impact response and fatigue analyses of braided composites are presented systematically. This review highlights the importance, advantages and limitations of as-applied failure criteria and damage evolution laws for yarns and composite unit cells. In addition, this work provides a good reference for future research on FE simulations of braided composites.

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Multi-scale damage modelling of 3D woven composites under uni-axial tension

Cited by 79 publications

References 30 publications

Effect of Random Void Defects on the Mechanical Behavior of C/C Braided Composites

Effect of Random Void Defects on the Mechanical Behavior of C/C Braided Composites

Numerical Analysis of Macro-Scale Mechanical Behaviors of 3D Orthogonal Woven Composites using a Voxel-Based Finite Element Model

Modelling of Damage Evolution in Braided Composites: Recent Developments

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