Strength prediction for bi-axial braided composites by a multi-scale modelling approach

Wang, Chen; Zhong, Yucheng; Adaikalaraj, Peter Francis Bernad; Ji, Xianbai; Roy, Anish; Chen, Zhong

doi:10.1007/s10853-016-9901-z

Cited by 44 publications

(25 citation statements)

References 41 publications

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“…Relevant finite element models and analytical solutions specifically for the prediction of the mechanical properties of natural fiber composites are relatively limited in the reported studies. For instance, carbon fibers are normally considered as transversely isotropic material during finite element analysis [16]. Investigation carried out to observe the microstructure of flax fibers found a concentric multi-wall structure of elementary flax fiber [17].…”

Section: Introductionmentioning

confidence: 99%

Prediction of the mechanical behavior of flax polypropylene composites based on multi-scale finite element analysis

et al. 2017

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Natural fibers and their composites differ in several aspects with carbon fibers, including higher scatter in strength and different tensile responses. The tensile and bending properties of flax fiber composites were experimentally studied and numerically simulated. Composite panels were fabricated from unidirectional flax fiber tapes and polypropylene films via hot pressing technique. The variation in the properties of flax/polypropylene composites was found to be relatively moderate as compared with that of single natural fibers. A multi-scale finite element analysis (FEA) strategy for the progressive damage prediction of natural fiber composites was developed. The FEA model started from microscale analysis which predicted the effective properties of unidirectional flax ply through representative volume element. Macro-scale analysis was conducted subsequently to predict the properties of composite coupons using the results of micro-scale analysis as inputs. The developed multi-scale FE model successfully predicted the tensile strength, bending behavior, and major failure modes of flax/polypropylene composites.

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Section: Introductionmentioning

confidence: 99%

Prediction of the mechanical behavior of flax polypropylene composites based on multi-scale finite element analysis

et al. 2017

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“…The cross section shape of the braiding yarns is considered as octagon containing an inscribed ellipse. The relationship between the major radius a and minor radius b of the ellipse and interior braiding angle of braided composites γ, is expressed as 3 cos a b γ = (18) As displayed in Fig. 4, W x , W y and h represent the width, thickness and height of the unit-cell model respectively, and they can be calculated as:…”

Section: Unit-cell Structural Modelmentioning

confidence: 99%

“…For continuous materials with periodic microstructure, two continuity conditions need to be satisfied at the boundaries of the neighboring unit-cells at the same time: (1) the displacement should be continuous; (2) the traction should be continuous. For the treatment of the boundary conditions of the unit-cell model of textile composites, homogeneous strain and stress boundary conditions were adopted by some researchers [16][17][18] to simplify the loading application process. However, it has been proven that [19] if the homogeneous strain boundary conditions are imposed in the unit-cell, the upper-bound of the material elastic constants are obtained while the traction continuity condition cannot be satisfied.…”

Section: Introductionmentioning

confidence: 99%

Comparison of periodic mesh and free mesh on the mechanical properties prediction of 3D braided composites

Zhang

Curiel-Sosa

Bui

2017

Composite Structures

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“…A similar method was applied by Wang et al (2016a) to predict tensile strength of bi-axial braided composites with various braiding angles (Fig. 5), while studies by Ahn and Yu (2016) and Zhong et al (2017) focused on a bending response of braided composites.…”

Section: ð19þmentioning

confidence: 99%

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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Strength prediction for bi-axial braided composites by a multi-scale modelling approach

Cited by 44 publications

References 41 publications

Prediction of the mechanical behavior of flax polypropylene composites based on multi-scale finite element analysis

Prediction of the mechanical behavior of flax polypropylene composites based on multi-scale finite element analysis

Comparison of periodic mesh and free mesh on the mechanical properties prediction of 3D braided composites

Modelling of Damage Evolution in Braided Composites: Recent Developments

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