A new two-step modeling strategy for random micro-fiber reinforced composites with consideration of primary pores

Cai, Heng; Ye, Junjie; Shi, Jinwang; Wang, Yiwei; Shi, Yang; Huang, Bo; Xu, Yonghe; Saafi, Mohamed; Ye, Jianqiao

doi:10.1016/j.compscitech.2021.109122

Cited by 7 publications

(5 citation statements)

References 35 publications

(46 reference statements)

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“…It is reported by Cai et al [31,32] (2021, 2022) that the FVF long thickness exhibits an obvious difference. In other words, the fiber distributed in the UD lamina close to the laminate surface is relative fewer.…”

Section: A Comparison With the Experimental Datamentioning

confidence: 91%

“…It is reported by Cai et al [31,32] that the random short fibers exhibit an obvious directionality and closely dependent on resin flow direction. To simplify the microscopic modeling procedure, the random short fibers are always considered to be periodically distributed in matrix materials according to the homogenization theory as shown in Figure 2(a).…”

Section: Modeling Process Of the Smpcmentioning

confidence: 93%

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A Novel Microscopic Modeling Scheme for the Shape Memory Polymer Composites with respect to the Ambient Temperature

Liu

et al. 2022

International Journal of Aerospace Engineering

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This paper is aimed at studying the effective mechanical property of shape memory polymer composites (SMPC) reinforced with natural short fibers. To this end, a novel modeling scheme was presented. The SMPC was firstly equivalent to the composite laminates, and the natural short fibers are also subtly equivalent to the ellipsoidal inclusions distributed in the matrix materials periodically. Moreover, a represented volume element along laminate thickness can be easily chosen, and its elastic constants are accurately acquired by employing a proper microscopic mechanical model. Herein, the high-fidelity generalized method of cells, which represents a good ability in predicting the effective mechanical behaviors of composites, was used. On this basis, the classic laminate theory was improved to suitable for describing the elastic constants and failure strength the SMPC with respect to ambient temperature. Numerical results show a good consistency to the experimental data. Moreover, a higher ambient temperature tends to sharply decrease their final failure strength. It is also revealed that the presented modeling method shows a great potential in calculating the effectively mechanical property of the natural short fiber-reinforced composites.

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Section: A Comparison With the Experimental Datamentioning

confidence: 91%

Section: Modeling Process Of the Smpcmentioning

confidence: 93%

A Novel Microscopic Modeling Scheme for the Shape Memory Polymer Composites with respect to the Ambient Temperature

Liu

et al. 2022

International Journal of Aerospace Engineering

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“…By employing Eq. ( 22), the zero-order variables 29). The relationship between the surface-averaged traction and the normal magnetic displacements can be obtained by Eq.…”

Section: Construction Of the Local Stiffness Matrixmentioning

confidence: 99%

“…Ye et al [27,28] presented an effective FVDAM model for fiber-reinforced composites with initial damages to investigate the local stress distribution and damage evolution at constitutive material level. Cai et al [29] proposed a novel mechanical property evaluation procedure with consideration of primary pores for random short fiber reinforced composites by constructing a 3D parametric FVDAM model. The homogenized properties and localized field distributions of the magnetostrictive composites [30] were also extensively investigated by using the FVDAM with full consideration of the coupled mechanical-magnetic effects.…”

Section: Introductionmentioning

confidence: 99%

A novel micromechanical method for nonlinear analysis of magnetostrictive composites

Wang

Liu

et al. 2023

Composite Structures

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“…Polyzos et al (2021) devised multiscale numerical model to determine the elastic characteristics of 3D-printed continuous fiber polymer composites including continuous fibers. Cai et al (2022) carried out two-step modeling approach to assess the effective properties of microfiber-reinforced composites, considering the presence of primary pores. Tang et al (2021) studied the longitudinal compression failure mechanisms of continuous carbon fiber-reinforced polymer composites using experimental and computational approaches at micro scale.…”

Section: Introductionmentioning

confidence: 99%

Effective Mechanical Properties Evaluation of Unidirectional and Bidirectional Composites Using Virtual Domain Approach at Microscale

Elmoghazy,

Abuelgasim,

Osman

et al. 2023

AAES

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In this investigation, a 3D micromechanical modeling methodology based on different types of unit cell configuration and representative volume element (RVE) is used to capture the micro-macro mechanical properties of unidirectional (UD) and bidirectional (BD) fiber-reinforced synthetic resin composites. In this regard, hexagonal unit cell and square unit cell were established in order to explore the influence of packing density on representative microstructure properties, considering no effects at the interphase zone between the fiber and the matrix. The virtual geometric generation of 2D-RVE fibres inclusion model process is driven by statistical Monte Carlo simulation algorithm, which is then incorporated into FE solver to develop 3D-BDC RVE laminate model within a virtual scheme. In addition, applying the linear constraint of displacement simulation ensures that the RVE behaves as expected under uniaxial and in-plane loading conditions, leading to more accurate results. This remote constraint helps capture the realistic behaviors of the UD and BD composites models and enables the evaluation of mechanical properties, deformation patterns, and stress distributions within the presented RVE.

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A new two-step modeling strategy for random micro-fiber reinforced composites with consideration of primary pores

Cited by 7 publications

References 35 publications

A Novel Microscopic Modeling Scheme for the Shape Memory Polymer Composites with respect to the Ambient Temperature

A Novel Microscopic Modeling Scheme for the Shape Memory Polymer Composites with respect to the Ambient Temperature

A novel micromechanical method for nonlinear analysis of magnetostrictive composites

Effective Mechanical Properties Evaluation of Unidirectional and Bidirectional Composites Using Virtual Domain Approach at Microscale

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