A continuum damage model for three-dimensional woven composites and finite element implementation

Zhong, Shun; Guo, Licheng; Liu, Gang; Lu, Hao; Zeng, Tao

doi:10.1016/j.compstruct.2015.03.030

Cited by 76 publications

(31 citation statements)

References 23 publications

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“…Using this method, as seen in Fig. 12, the predictions of failure of woven composites under tension agreed well with the corresponding experiments (Zhong et al 2015). The obtained results showed that mechanical properties of 3D woven composites were influenced by their thickness.…”

Section: Continuous Stiffness Degradationsupporting

confidence: 75%

“…10 Effect of interfacial elastic modulus on stress-strain curves of 3D braided composites ) Fig. 11 a Exponential damage evolution law for fibre yarn; b linear and exponential laws for fibre failure mode in tension (Zhong et al 2015) characterizing the damage evolution responsible for the loss of stiffness due to micro-cracks. Besides, the nonlinearity can be considered as macroscopic behaviour of the material independently from damage evolution.…”

Section: Other Advanced Studies Of Progressive Failurementioning

confidence: 99%

“…10. Zhong et al (2015) further developed the above mentioned exponential evolution approach for failure analysis of 3D woven composites under tension. Except for the longitudinal tension failure modes, the exponential damage evolution laws were still adopted for the fibre yarn in the model.…”

Section: Continuous Stiffness Degradationmentioning

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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Section: Continuous Stiffness Degradationsupporting

confidence: 75%

Section: Other Advanced Studies Of Progressive Failurementioning

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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“…However, the few investigations of the damage evolution behavior in the 3D fiber reinforced composites, are accompanied by some limitations. Typical limitations are, (1) most of the adopted classical criteria were unable to accurately and effectively predict the initial damage; (2) the damage and failure modes were usually not described adequately [8]. The damage is defined as follows:…”

Section: Damage Model For Composite Layermentioning

confidence: 99%

A New Damage Model to Predict Orthotropic Nonlinear Behavior of Woven Glass-Epoxy Composite

Kashfi¹

2017

EAS

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Abstract:In the present work a new damage model based on continuum damage mechanic was proposed to predict the nonlinear behavior of woven glass fiber composite under tensile test. The composite specimens were fabricated by hand lay-up method and they were put into a temperature and pressure controlled curing chamber. In order to perform the tensile test a universal Instron machine was used with the DIC method to measure the strain field during the tensile test. All orthotropic mechanical properties such as elasticity modulus, Poisson`s ratio and failure strain were calculated from experiment. After tensile test it was observed that the material behavior was brittle elastic however the stress-strain curve was exhibited a nonlinear fashion. The reason of nonlinearity assumed as irreversible damage effect during the test for instance initial void, fiber breakage, matrix cracking, delamination and fibers debonding. A new damage model with four physical meaning constants was proposed to predict the nonlinear behavior of the material. The model was implemented by a user subroutine in MSC MARC finite element software. Additionally the material damage constants were obtained from iterative numerical simulations. Moreover the damage parameters were optimized by Genetic Algorithm. In conclusion the damage model can predict the nonlinear behavior of composite in both warp and weft direction with reasonable agreement in comparing with experiment.

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“…It is clear that either classical failure criteria or newly developed mechanical theory were incorporated into multi-scale schemes for strength prediction for braided composites. However, reliability and accuracy of such schemes are still debatable [23][24][25]. The damage evolution law of Ladeveze is attractive for UD composites because of its simplicity, but it needs modification when applying to braided composites.…”

Section: Introductionmentioning

confidence: 99%