Mechanical behavior analysis of 3D braided composite joint via experiment and multiscale finite element method

Hong, Yang; Yan, Ying; Tian, Zhiyuan; Guo, Feng; Ye, Jinxin

doi:10.1016/j.compstruct.2018.10.017

Cited by 42 publications

(11 citation statements)

References 45 publications

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“…After a tensile test carried out by the EZ-20 tensile machine (figure 4) and a numerical analysis using the finite element method, which is known for its strong ability to predict the behavior of more complex materials [10][11][12][13][14][15][16][17][18][19], on the flexible and rigid PVC samples after and before aging, the results obtained from the test are grouped together in the figures 5 and 6 and table 2. We note that the stiffness of rigid PVC has changed slightly after aging and this is due to the inclination of the slope towards the elastic region.…”

Section: Resultsmentioning

confidence: 99%

Experimental and Numerical Study of the Mechanical Behavior of Bio-Loaded PVC Subjected to Aging

Lakhdar¹,

Moumen²,

Zahiri³

et al. 2020

Adv. sci. technol. eng. syst. j.

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Increased recycling of PVC has become a requirement in industrial and scientific research level. Several studies will be realized. To confirm and check the recycled materials performance, it will be important to go through numerical modeling, which consists not only in validating the results of the experiments, but also in predicting what happens when the material is loaded. PVC material is more used in different fields, that ultimately means, after service life, an increase in waste requiring a high recycling rate. This article presents an approach validating the aging model as well as a numerical analysis predicting the mechanical properties of PVC after aging. The analysis samples (rigid and flexible) PVC which are subject to two types of accelerated aging, allows to obtain an aging model. Numerical modeling of PVC after aging is carried out using the finite element method and has been able to confirm the results obtained experimentally. Predicting the mechanical properties of rigid PVC after aging loaded with coconut and cow horn fibers after a first recycling is made by the finite element method, Mori-Tanaka and Double inclusion models. The obtained results have showed an improvement in the mechanical characteristics of the PVC studied using this natural bio-loading with these two fibers which respect the environment and have a lower cost and more lightness.

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Section: Resultsmentioning

confidence: 99%

Experimental and Numerical Study of the Mechanical Behavior of Bio-Loaded PVC Subjected to Aging

Lakhdar¹,

Moumen²,

Zahiri³

et al. 2020

Adv. sci. technol. eng. syst. j.

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“…The layers are unidirectional composites whose elastic moduli can be derived by a number of methods, and the bridging model is adopted in the present study . The strengths of the layers are estimated as follows:

({, \begin{array}{c} X_{t} = X_{t}^{f} \times V_{f} + σ_{t}^{m} \times ((), 1 - V_{f}) \\ X_{c} = X_{c}^{f} \times ((), V_{f} + ((), 1 - V_{f}) \times \frac{E^{m}}{E_{11}^{f}}) \\ Y_{t} = ([], 1 - ((), \sqrt{V_{f}} - V_{f}) \times ((), 1 - \frac{E^{m}}{E_{22}^{f}})) \times σ_{t}^{m} \\ Y_{c} = ([], 1 - ((), \sqrt{V_{f}} - V_{f}) \times ((), 1 - \frac{E^{m}}{E_{22}^{f}})) \times σ_{c}^{m} \\ S_{12} = ([], 1 - ((), \sqrt{V_{f}} - V_{f}) \times ((), 1 - \frac{G^{m}}{G_{12}^{f}})) \times τ^{m} \\ S_{23} = τ^{f} \times V_{f} + τ^{m} \times ((), 1 - V_{f}) \end{array}),

where X t and X c denote the longitudinal tensile and compressive strengths of the layers, respectively. Y t and Y c denote the transverse tensile and compressive strengths of the layers, respectively.…”

Section: Numerical Simulationmentioning

confidence: 99%

Experimental and numerical investigation on three‐point bending behaviors of unidirectional warp‐knitted composites

Hong

Yan

Guo

et al. 2019

J of Applied Polymer Sci

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This study develops a novel specimen model, which considers the progressive damage of the layers, the knitting yarns, and the interlaminar cohesive zone, to investigate the flexural properties and the interlaminar shear properties of the unidirectional warpknitted composites. Three-point bending tests are conducted as verification of the numerical model. Improved strain-based Hashin criteria are proposed to analyze the shear nonlinearity. Results show that specimens with small span-to-thickness ratios exhibit obvious nonlinear behaviors and the corresponding simulation results are sensitive to the value of the shear nonlinear factor. Failure mechanism and stress distributions are analyzed based on numerical simulations. The effect of the specimen size on bending behaviors is discussed. The influence of the width is found to be negligible but that of the span-to-thickness ratio is significant. The ranges of the span-tothickness ratio corresponding to different failure modes are given.

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“…The effective elastic properties of fiber tows were in advance computed based on the micro-scale RVE, and then they were transferred to the meso-scale RVE of braided composites. Huang and Gong (2018), He et al (2019) and Hong et al (2019), Zhou et al ( 2013) also adopted the hierarchical multi-scale method to predict the elastic and damage behaviors of braided composites. As for this hierarchical multiscale method, it was only concerned with the data transfer of calculated material properties between low-scale and high-scale.…”

Section: Introductionmentioning

confidence: 99%

A novel synergistic multi-scale modeling framework to predict micro- and meso-scale damage behaviors of 2D triaxially braided composite

Jiang

Jin

2021

International Journal of Damage Mechanics

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A novel synergistic multi-scale modeling framework with a coupling of micro- and meso-scale is proposed to predict damage behaviors of 2D-triaxially braided composite (2DTBC). Based on the Bridge model, the internal stress and micro damage of constituent materials are respectively coupled with the stress and damage of tow. The initial effective elastic properties of tow (IEEP) used as the predefined data are estimated by micro-mechanics models. Due to in-situ effects, stress concentration factor (SCF) is considered in the micro matrix, exhibiting progressive damage accumulation. Comparisons of IEEP and strengths between the Bridge and Chamis’ theory are conducted to validate the values of IEEP and SCF. Based on the representative volume element (RVE), the macro properties and damage modes of 2DTBC are predicted to be consistent with available experiments and meso-scale simulation. Both axial and transverse damage mechanisms of 2DTBC under tensile or compressive load are revealed. Micro fiber and matrix damage accumulations have significant effects on the meso-scale axial and transverse damage of tows due to multi-scale coupling effects. Different from existing meso-/multi-scale models, the proposed multi-scale model can capture a crucial phenomenon that the transverse damage of tow is vulnerable to micro fiber fracture. The proposed multi-scale framework provides a robust tool for future systematic studies on constituent materials level to larger-scale aeronautical materials.

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Mechanical behavior analysis of 3D braided composite joint via experiment and multiscale finite element method

Cited by 42 publications

References 45 publications

Experimental and Numerical Study of the Mechanical Behavior of Bio-Loaded PVC Subjected to Aging

Experimental and Numerical Study of the Mechanical Behavior of Bio-Loaded PVC Subjected to Aging

Experimental and numerical investigation on three‐point bending behaviors of unidirectional warp‐knitted composites

A novel synergistic multi-scale modeling framework to predict micro- and meso-scale damage behaviors of 2D triaxially braided composite

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