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

Zhang, Chao; Curiel-Sosa, J.L.; Bui, Tinh Quoc

doi:10.1016/j.compstruct.2016.10.012

Cited by 49 publications

(15 citation statements)

References 32 publications

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“…(28) can be carried out easily in the finite element analysis by setting the nodal displacement constraint equations. The detailed application process can be found in the reference [30][31].…”

Section: Boundary Conditionsmentioning

confidence: 99%

A novel interface constitutive model for prediction of stiffness and strength in 3D braided composites

Zhang

Curiel-Sosa

Bui

2017

Composite Structures

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Please cite this article as: Zhang, C., Curiel-Sosa, J.L., Quoc Bui, T., A novel interface constitutive model for prediction of stiffness and strength in 3D braided composites, Composite Structures (2016), doi: http://dx.doi. org/ 10.1016/j.compstruct.2016.12.042 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Maximum stress criteria and a gradual degradation scheme are applied to predict the damage evolution of yarns and matrix. A user-material subroutine VUMAT based on finite element package ABAQUS/Explicit is developed for these constitutive models. The stiffness and strength properties of 3D braided composites are derived from the calculated stress-strain curves under typical loading cases. The damage mechanism of constituents especially the interface is revealed in these simulation processes. The effects of the interface parameters on the mechanical properties of composites are investigated, which provides a reference for optimizing design and control of the interface properties of 3D braided composites.

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Section: Boundary Conditionsmentioning

confidence: 99%

A novel interface constitutive model for prediction of stiffness and strength in 3D braided composites

Zhang

Curiel-Sosa

Bui

2017

Composite Structures

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“…Periodic boundary conditions are employed by setting the displacement constraint equations between the related nodes on the paired surfaces, edges and corners of the unit-cell model. The detailed application process can be found in our previous work [32].…”

Section: Meso-scale Finite Element Model and Boundary Conditionsmentioning

confidence: 99%

Meso-scale progressive damage modeling and life prediction of 3D braided composites under fatigue tension loading

Zhang

Curiel-Sosa

Bui

2018

Composite Structures

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3D braided composites have broad potential applications in the high-tech industries because of their superior mechanical properties. Fatigue is an essential design factor for their use in those engineering applications. The fatigue damage accumulation during cyclic loading should be involved in the numerical models in order to predict the fatigue life accurately. In this paper, a unit-cell based finite element model in conjunction with continuum damage mechanics (CDM) is developed for simulating the fatigue damage evolution process and predicting the fatigue life of 3D braided composites under fatigue tension loading. This meso-scale fatigue modeling, including stress analysis, failure criteria and material property degradation scheme, is implemented via a user-material subroutine UMAT based on ABAQUS/Standard platform with FORTRAN code. The fatigue damage initiation and propagation processes of 3D braided composites with typical braiding angles on the unit-cell model as a function of number of cycles are presented in detail. The fatigue life of 3D braided composites is predicted from the computed S-N curve and the stiffness degradation process is also investigated. The obtained numerical results indicate that the present model can provide a suitable reference to the numerical study of the fatigue issues in other textile composites.

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“…The procedure allowed to mesh penetrated yarns without geometrical modifications. A comparative study between periodic and free mesh for 3D braided composite was peformed in [30]. Freely generated mesh was combined with general periodic boundary condition.…”

Section: Introductionmentioning

confidence: 99%

A unified framework for the multi-scale computational homogenisation of 3D-textile composites

Ullah

Zhou

Kaczmarczyk

et al. 2019

Composites Part B: Engineering

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This paper extends the applications of a novel and fully automated multi-scale computational homogenisation framework, originally proposed by the authors (Ullah, et al. (2017)) for unidirectional and 2D-textile composites, to 3D-textile composites. 3D-textile composites offer many advantages over 2D-textile composites but their highly complicated and unpredictable post-cured geometries make their design very challenging. Accurate computational models are therefore essential to the development of these materials. The computational framework described in this paper possesses a variety of novel features which have never been tried for this class of composites and can potentially help to fully automatise and improve their design process. A unified approach is used to impose the representative volume element boundary conditions, which allows convenient switching between linear displacement, uniform traction and periodic boundary conditions. The computational framework is implemented using hierarchic basis functions of arbitrary polynomial order, which allows one to increase the order of approximation without changing the finite element mesh. The yarns' principal directions, required for the transversely isotropic material model are calculated using a potential flow analysis along these yarns. This feature is very useful for 3D-textile composites and can accurately determine fibres' directions even in the case of very deformed yarns. A numerical example from literature consisting of a 3D-orthogonal woven composite is used to demonstrate the correct implementation and performance of the developed computational framework. Also, the developed computational framework is used to perform a comparative study of the homogenised mechanical properties of five 3D-textile composites with different yarn architectures.

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

Cited by 49 publications

References 32 publications

A novel interface constitutive model for prediction of stiffness and strength in 3D braided composites

A novel interface constitutive model for prediction of stiffness and strength in 3D braided composites

Meso-scale progressive damage modeling and life prediction of 3D braided composites under fatigue tension loading

A unified framework for the multi-scale computational homogenisation of 3D-textile composites

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