Behaviour and mechanism of fatigue crack growth in aramid-fibre-reinforced styrene–butadiene rubber composites

Yin, Liang; Luo, Zhu; Yang, Bo; Ji, Yongchun

doi:10.1016/j.ijfatigue.2020.105502

Cited by 22 publications

(14 citation statements)

References 31 publications

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“…Nanoscale aramid fiber or ANFs combines the advantages of high-performance aramid fiber and nanofiber, therefore its composite effect in the composite materials is greatly enhanced. For example, the addition of aramid fiber to styrene butadiene rubber can effectively inhibit the fatigue crack growth (Yin et al, 2020 ) or improve mechanical properties of the resulting polymer composite (Gu et al, 2018 ; Tang et al, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Allyl and Benzyl Modified Aramid Nanofibers as an Enhancement in Polystyrene-Based Composites

et al. 2020

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Section: Introductionmentioning

confidence: 99%

Allyl and Benzyl Modified Aramid Nanofibers as an Enhancement in Polystyrene-Based Composites

et al. 2020

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“…In this study, according to the previous research results, [24][25][26] it was decided to add 2 parts (number of mass parts per 100 mass parts of SBR) of pure fiber for each group to ensure the high elasticity and economics of the composites. The treated fibers were mixed directly with 100-g SBR containing 50 parts of carbon black in a torque rheometer (XSS-300, Shanghai Kechuang Rubber and Plastic Machinery Equipment, China) under the following conditions: temperature 130 C, stirring time 7 min, and rotor speed 80 r/min.…”

Section: Preparation Of Compositesmentioning

confidence: 99%

“…[20][21][22] A small amount of AF has been used to reinforce SBR material, resulting in significantly improving the strength and fatigue performance. [23][24][25] Yin et al 26 proposed that AF with a well-bonded flexible interface layer has an obvious attraction to fatigue cracks and can effectively slow down their growth. Zhong et al 27 modified AF coated with VPL, or maleated polybutadiene liquid rubber, to increase the fatigue life under stress-controlled fatigue.…”

Section: Introductionmentioning

confidence: 99%

Fatigue failure behavior of aramid fiber reinforced styrene butadiene rubber composite with different fiber coatings

Zhang

Yin

Luo

et al. 2022

Fatigue Fract Eng Mat Struct

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This study investigates the true stress evolution of aramid fiber (AF) reinforced styrene butadiene rubber (SBR)/carbon black (CB) composites with different interface characteristics in the fatigue failure process. AF was coated with epoxy‐functionalized silane (γ‐propyltrimethoxysilane, KH560) and butadiene styrene vinyl‐pyridine rubber latex (VPL). The influence of the interface characteristics on the mechanical and fatigue properties of the composites were explored. The results show that the fatigue crack growth rate of the rubber composites reinforced by a coated fiber with a flexible interface layer was significantly reduced. Furthermore, the fatigue failure behavior of the notched samples can be characterized by true stress evolution. The power‐law relationship of the true stress with both fatigue cycle and crack growth length was founded. Meanwhile, the stress evolution mechanism in the process of fatigue failure was discussed and the critical crack length corresponding to the point where the true stress begins to accelerate is found.

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“…The tear energy T of the rubber material was used to predict the fatigue life of the valve for the large nonlinear deformation in a fluid environment. T can be described as 40…”

Section: Mechanical Modelsmentioning

confidence: 99%

Design and evaluation of a novel anti-reflux biliary stent with cone spiral valve

Wang

Song

et al. 2020

Proc Inst Mech Eng H

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Endoscopic placement of biliary stent is a well-established palliative treatment for biliary obstruction. However, duodenobiliary reflux after stent placement has been a common problem which may lead to dreadful complications. This paper designed a novel anti-reflux biliary stent with a cone spiral valve. Fluid-Structure Interaction (FSI) simulations were established to evaluate the efficiency of the anti-reflux stent comparing with a clinically applied standard stent. According to the stress distribution of the valve, the fatigue performance in the stress concentration area was analyzed. The results show that when the antegrade flow through the valve, the cone spiral valve could stretch and open to realize adequate drainage under the normal physiological pressure of biliary tract; When the duodenal reflux through the valve, the valve would be compressed and close with a result of nearly zero at the outlet flow rate. Furthermore, the anti-reflux stent achieved improved radial mechanical performance with 2.7 times higher radial stiffness than standard stent. Finite element analysis (FEA) also indicates that compared with the standard stent, the addition of the anti-reflux valve had little negative effect on flexibility of the stent. Fatigue analysis results showed that the valve was reliable. This research provides the new stent with a cone spiral valve and proves that it is technically feasible and effective for preventing the duodenobiliary reflux while ensuring the antegrade bile flow without compromising the other biomechanical performances.

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Behaviour and mechanism of fatigue crack growth in aramid-fibre-reinforced styrene–butadiene rubber composites

Cited by 22 publications

References 31 publications

Allyl and Benzyl Modified Aramid Nanofibers as an Enhancement in Polystyrene-Based Composites

Allyl and Benzyl Modified Aramid Nanofibers as an Enhancement in Polystyrene-Based Composites

Fatigue failure behavior of aramid fiber reinforced styrene butadiene rubber composite with different fiber coatings

Design and evaluation of a novel anti-reflux biliary stent with cone spiral valve

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