Effects of the short‐fiber tip geometry and interphase properties on the interfacial debonding behavior of rubber matrix composites

Yu, Xiaoming; Gu, Bin; Zhang, Bin

doi:10.1002/app.42774

Cited by 10 publications

(9 citation statements)

References 36 publications

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“…The aramid fiber is modeled as a linear elastic, homogeneous isotropic material. The Young's modulus and Poisson ratio of the aramid fiber are E f = 136 GPa and v f = 0.2, respectively . The rubber matrix is modeled as a hyperelastic material.…”

Section: Computational Micromechanics Modelmentioning

confidence: 99%

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Modeling and experimental validation of interfacial fatigue damage in fiber‐reinforced rubber composites

Zhang

2017

Polymer Engineering & Sci

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This article presents an experimental and numerical study of short-fiber-reinforced rubber sealing composites (SFRC) at different stress amplitudes (1 MPa, 2 MPa, and 3 MPa). The curves of the maximum strain varying with the number of cycles were obtained by the fatigue test, and the damage modes of SFRC at different stress amplitudes were determined by scanning electron microscope. A finite element model (FEM) was established, where fibers distributed randomly and the stress-based fatigue damage model integrating with a bilinear tractionseparation law of the cohesive zone model was embedded in the fiber/matrix interface. The effect of different stress amplitudes on the fatigue damage of SFRC was investigated by FEM where the interfacial debonding behavior was considered. The predictions at stress amplitudes of 1 MPa are generally consistent with experimental data. The predictions at high stress amplitudes (2 MPa and 3 MPa) are agreeable with experimental data at low number of cycles.

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Section: Computational Micromechanics Modelmentioning

confidence: 99%

“…The initial response is linear in the absence of damage with an elastic stiffness of K . The values of the interfacial parameters are taken from our previous work :

K = 1 0^{8} GPa / m, t_{n}^{0} = t_{s}^{0} = 2.1 MPa, G = 0.1 J / m^{2}

…”

Section: Computational Micromechanics Modelmentioning

confidence: 99%

Modeling and experimental validation of interfacial fatigue damage in fiber‐reinforced rubber composites

Zhang

2017

Polymer Engineering & Sci

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“…Their main aim was to investigate the effect of different stress amplitudes on fatigue damage. Yu et al, [14,15] have developed nite element models for axisymmetric RVE based on the previous works [12,13] to study the effects of the geometry of the ber tip and interfacial properties on the stress distribution at interfacial zone under normal and shear stress. More recently, Yu et al, [16,17] have extended the above-mentioned works, and developed a more advanced nite element model for the RVE.…”

Section: Introductionmentioning

confidence: 99%

Effects of nonlinear hyper-viscoelasticity and matrix/fiber debonding on mechanical properties of short carbon fiber/SBR composites under cyclic uniaxial loads using an RVE-based multiscale finite element model

Andideh

Ghoreihy

Soltani

et al. 2022

Preprint

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This research work is devoted to the development of an RVE-based finite element analysis of short carbon fiber (SCF) reinforced rubber composites under uniaxial tensile loads by a novel approach. A micro model was developed with periodic geometry and random distribution of the short fiber in it. Three different zones including rubber matrix, SCF as the inclusion phase, and a thin layer as the interphase were considered. A nonlinear hyper-viscoelastic model was selected for the matrix in conjunction with linear viscoelastic and elastic models for the interphase and reinforcing parts, respectively. The analyses were carried out at two loading-unloading rates of 10 mm/min and 100 mm/min subjected to incrementally-increased cyclic loads. Two interface conditions were taken into account. In the first case, a perfect bonding was assumed between matrix and SCF while in the second, partial debonding between fiber and polymer was considered. The latter was modeled via XFEM with a crack initial criterion. An integral averaging technique was employed to predict the stress and strain at the macro-scale. Comparison of the predicted results with experimentally measured data revealed that the adopted methodology and modeling techniques are quite able to predict the stress and strain and thus confirmed the accuracy and correctness of the multiscale approach and selected material models.

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“…Short fiber has been widely used to reinforce rubber composites of rubber products, such as tires, conveyor belts and seal [1][2][3][4]. The short fiber addition could generally improve the comprehensive performance of rubber composite, such as hardness, modulus, corrosion resistance, compressibility, and wear resistance.…”

Section: Introductionmentioning

confidence: 99%

Effect of Gear Pump Extrusion Processing on the Properties of Fiber Reinforced Rubber Composites

Tian

Zhu

et al. 2020

Polymers

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Short fiber reinforced rubber composites have been widely used in rubber products attributed to their excellent wear resistance. However, there are still some serious problems in the processing of short fiber reinforced rubber composites, such as Mooney viscosity increasing, temperature and extrusion pressure rising, and unstable extrusion quality. In particular, short fibers need to be extruded in a specific direction during the molding process, and the problems in this process are particularly prominent. In this manuscript, the influence of gear pump assisted extrusion on the properties of short fiber rubber composites is studied. The experimental results show that the application of a gear pump to assist extrusion could significantly increase the die pressure, reduce the extrusion temperature of the blend, and improve the extrusion efficiency and stability of the blend. Furthermore, it could improve the vulcanization efficiency, increase the tensile strength and tear strength of the compound, reduce wear, and guarantee the quality of extrusion products.

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Effects of the short‐fiber tip geometry and interphase properties on the interfacial debonding behavior of rubber matrix composites

Cited by 10 publications

References 36 publications

Modeling and experimental validation of interfacial fatigue damage in fiber‐reinforced rubber composites

Modeling and experimental validation of interfacial fatigue damage in fiber‐reinforced rubber composites

Effects of nonlinear hyper-viscoelasticity and matrix/fiber debonding on mechanical properties of short carbon fiber/SBR composites under cyclic uniaxial loads using an RVE-based multiscale finite element model

Effect of Gear Pump Extrusion Processing on the Properties of Fiber Reinforced Rubber Composites

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