A non-orthogonal material model of woven composites in the preforming process

Zhang, Weizhao; Ren, Huaqing; Liang, Biao; Zeng, Deliang; Su, Xuming; Dahl, Jeffrey; Mirdamadi, Mansour; Zhao, Qiangsheng; Cao, Jian

doi:10.1016/j.cirp.2017.04.112

Cited by 27 publications

(11 citation statements)

References 9 publications

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“…The variations in the reinforcement, such as fiber volume fraction, deformation state, and other parameters, will have a great effect on the resin flow impregnation. In addition, the preforming defects observed at this stage, such as yarn slippage, buckling, and wrinkling, are closely related to the preforming behaviors [ 11 , 12 , 13 , 14 ]. The deformation behavior of reinforcement to form a specific shape primarily includes the deformation modes such as tension, in-plane shear, bending, and transverse compression [ 15 , 16 , 17 ], even the tension-shear coupling [ 18 , 19 ].…”

Section: Introductionmentioning

confidence: 99%

“…Numerical simulation allows researchers to adopt more effective and cost-effective design methods to study the feasibility of fabric forming. The simulation code describes the evolution of the behavior of the reinforcement through a mechanical method [ 14 , 19 , 24 , 25 , 26 , 27 ]. However, the accuracy of these numerical works must be verified by experimental results.…”

Section: Introductionmentioning

confidence: 99%

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Analysis of the Mechanical and Preforming Behaviors of Carbon-Kevlar Hybrid Woven Reinforcement

Gao

Zhang

et al. 2021

Polymers

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Carbon-Kevlar hybrid reinforcement is increasingly used in the domains that have both strength and anti-impact requirements. However, the research on the preforming behaviors of hybrid reinforcement is very limited. This paper aims to investigate the mechanical and preforming behaviors of carbon-Kevlar hybrid reinforcement. The results show that carbon-Kevlar hybrid woven reinforcement presents a unique “double-peak” tensile behavior, which is significantly different from that of single fiber type reinforcement, and the in-plane shear deformation demonstrates its large in-plane shear deformability. Both the tensile and in-plane shear behaviors present insensitivity to loading rate. In the preforming process, yarn slippage and out-of-plane yarn buckling are the two primary types of defects. Locations of these defects are closely related to the punch shape and the initial yarn direction. These defects cannot be alleviated or removed by just increasing the blank holder pressure. In the multi-layer preforming, the compaction between the plies and the friction between yarns simultaneously affect the quality of final preforms. The defect location of multi-layer preforms is the same as that of single-layer, while its defect range is much wider. The results found in this paper could provide useful guidance for the engineering application and preforming modeling of hybrid woven reinforcement.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Analysis of the Mechanical and Preforming Behaviors of Carbon-Kevlar Hybrid Woven Reinforcement

Gao

Zhang

et al. 2021

Polymers

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“…pultrusion [13], and thermoforming [14][15][16]. The latter process is a proper choice to produce parts for transportation equipment as it can provide a high production rate with relatively complicated surface geometries, good product quality, and low facility cost.…”

Section: Introductionmentioning

confidence: 99%

“…hampering the practicality of thermoforming. To address this issue, several computational models based on the finite element (FE) method have been developed to simulate the preforming process to predict the fiber orientation, geometry, wrinkling behavior on the part, and the forming force [4,14,[21][22][23][24]. For reliable predictions, there is a need for characterizing and employing realistic and accurate material properties in the computational models.…”

Section: Introductionmentioning

confidence: 99%

A numerical Bayesian-calibrated characterization method for multiscale prepreg preforming simulations with tension-shear coupling

Zhang

Bostanabad

Liang

et al. 2019

Composites Science and Technology

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“…8 The fabric can be modelled as continuum media with specific material behaviour. [9][10][11][12][13] Recently, Denis et al 14 proposed a dissipative constitutive model analogous to these used to model metal plasticity. Another approach consists of using discrete structural elements to describe the textile structure at the mesoscopic scale.…”

Section: Introductionmentioning

confidence: 99%

Experimental analysis and numerical modelling of dry carbon woven reinforcement preforming

Najjar

Legrand

Soulat

et al. 2019

Journal of Reinforced Plastics and Composites

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In this paper, an experimental and numerical study of the preforming process of the G1151 carbon woven fabric reinforcement is presented. The experimental analysis was based on tensile and shear tests. These tests were important to analyse the behaviour of this particular woven reinforcement and to figure out some key phenomena related to its deformation process. The numerical modelling is implemented in the commercial FEM software (Abaqus) using a discrete finite element approach. The model is built using the concept of a "unit cell" formulated with a Hencky linear elastic shell/membrane elements coupled with axial connectors. The connectors replace bar and beam elements used in previous works and can have a linear or a non-linear behaviour. Shell finite elements are chosen to describe the in-plane shear stiffness and to manage contact phenomena. The model parameters identification technique is based on experimental constitutive tests and an inverse optimisation procedure. The model has been experimentally validated for the case of hemispherical single layer preforming of the G1151 woven fabric.

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A non-orthogonal material model of woven composites in the preforming process

Cited by 27 publications

References 9 publications

Analysis of the Mechanical and Preforming Behaviors of Carbon-Kevlar Hybrid Woven Reinforcement

Analysis of the Mechanical and Preforming Behaviors of Carbon-Kevlar Hybrid Woven Reinforcement

A numerical Bayesian-calibrated characterization method for multiscale prepreg preforming simulations with tension-shear coupling

Experimental analysis and numerical modelling of dry carbon woven reinforcement preforming

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