Multi-scale modelling of dynamic progressive failure in composite laminates subjected to low velocity impact

Liao, Binbin; Tan, Huancheng; Zhou, Jianwu; Jia, Liyong

doi:10.1016/j.tws.2018.07.047

Cited by 39 publications

(16 citation statements)

References 42 publications

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“…The orthotropic elastic model and progressive damage criteria are widely used to describe the behavior of thermoset composites [7][8][9][10][11], [27][28][29][30][31][32][33][34] . It is known that thermoplastic composites have a remarkable nonlinear behavior because of the plasticity behavior of thermoplastic matrix, which enhance the ductility and impact resistance of thermoplastic composites.…”

Section: Constitutive Modelmentioning

confidence: 99%

“…[23] But Wang's stiffness degradation model is an empirical formula, which only considers the degradation of shear modulus. In order to describe the tensile process and investigate the damage of CF/PEEK hole, elastic damage initiation criteria and evolution law are applied to the elastic part of Sun's model according to the research of Hashin et al [25][26][27][28][29][30][31][32][33] It is assumed that the total strain increment can be separated into elastic and plastic components as [21] dε ij = dε e ij + dε p ij ð1Þ…”

Section: Constitutive Modelmentioning

confidence: 99%

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Effect of CF/PEEK plasticity behavior on the mechanical performance of interference‐fit joint

Yao

Chen

et al. 2021

Polymer Composites

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Carbon fiber reinforced polyetheretherketone polymer (CF/PEEK) thermoplastic composites have a marked plastic yield stage compared to thermoset composites with epoxy matrix. During the interference fit riveting process, extrusion between rivet and composites laminate creates plastic deformation on the hole wall, which will enhance the bearing capacity of composites hole. Therefore, it is expected that the interference fit will play a greater advantage in enhancing the bearing strength of CF/PEEK riveted joint. Numerical and experimental study are applied to investigate the effect of interference fit on bearing strength of CF/PEEK riveted joint. Results show that the plastic deformation of CF/PEEK composites hole wall is positively correlated with the bearing strength of CF/PEEK riveted joint. When the interference fit size exceeds 2.6%, the bearing capacity of CF/PEEK riveted joint reduces because of the increase of fiber damage. It is concluded that the plastic deformation of riveted hole wall can enhance the bearing capacity of CF/PEEK riveted joint, while fiber damage reduces the bearing capacity of CF/PEEK riveted joint. As the increase of interference-fit size, bearing strength of CF/PEEK riveted joint raises first then decreases, the appropriate interference-fit size is in the range of 2.0%~2.6%, which is larger than that of thermoset composites.

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Section: Constitutive Modelmentioning

confidence: 99%

Section: Constitutive Modelmentioning

confidence: 99%

Effect of CF/PEEK plasticity behavior on the mechanical performance of interference‐fit joint

Yao

Chen

et al. 2021

Polymer Composites

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“…The typical feature of this method is that the information can be simultaneously transferred "from high-scale to low-scale" and "from low-scale to high-scale". Liao et al (2018) adopted the synergistic multi-scale method to study the dynamic failure in composite laminates under the low-velocity impact. Their model coupled the macro-and micro-scale stress using the SAF and then coupled the damage progression by the damage variable association.…”

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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“…MCT is a progressive failure analysis, where independent matrix and fiber failures are assumed, which has been used in several studies. 8,9 Indeed, it is possible to find many studies on progressive failure of laminates plates and shells (curved or not) in the literature, [10][11][12][13][14][15] but investigations on composite spirals and rings are more scarce. Spirals and rings display distinct behavior due to their particular geometry and manufacturing process.…”

Section: Introductionmentioning

confidence: 99%

Composite spirals and rings under flexural loading: Experimental and numerical analysis

Tonatto

Tita

Amico

2020

Journal of Composite Materials

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Recent improvements in pultrusion and filament winding have allowed the manufacturing of spirals and rings composite profiles for applications such as fuselage reinforcements of small aircrafts, automotive bumper beams, automotive springs and structural reinforcement for pipes. However, the behavior of curved carbon fiber components is complex and hard to predict, and still demands deeper understanding. In this work, progressive damage and cohesive zone numerical models were used to simulate the behavior of unidirectional curved composite structures under flexural loading. Four-point bending tests were carried out on curved samples monitored by strain gages for model validation. The results have demonstrated a strong influence of delamination on samples with well-defined resin-rich areas. In contrast, curved structures with more homogeneous fiber distribution, i.e. those manufactured by curved pultrusion, showed increased flexural strength. Maximum stresses from numerical and experimental analyses were compared and the maximum difference found was below 3.5%.

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Multi-scale modelling of dynamic progressive failure in composite laminates subjected to low velocity impact

Cited by 39 publications

References 42 publications

Effect of CF/PEEK plasticity behavior on the mechanical performance of interference‐fit joint

Effect of CF/PEEK plasticity behavior on the mechanical performance of interference‐fit joint

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

Composite spirals and rings under flexural loading: Experimental and numerical analysis

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