A method to predict the dynamical behaviors of carbon black filled natural rubber at different temperatures

Hu, Xiaoling; He, Ruizhi; Huang, Youjian; Yin, Boyuan; Luo, Wenbo

doi:10.1016/j.polymertesting.2019.106067

Cited by 16 publications

(22 citation statements)

References 27 publications

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“…Abraham et al [ 61 ] studied the effect of strain amplitude on the fatigue life of styrene–butadiene rubber and ethylene–propylene rubber and found that when the strain amplitude is constant, increasing the minimum strain can improve their fatigue life. Many researchers pay attention to the constant strain amplitude when studying rubber fatigue [ 62 , 63 ], while Harbour et al [ 46 ] proposed that the fatigue life should be studied under variable amplitude load and multi-axial load because this is more in line with the complex loads that rubber materials bear in service. Gehrmann et al [ 64 ] claimed that controlled displacement experiments were not equal to the controlled strain because even if the displacement amplitude was constant, the strain of the narrow part would change significantly, so a method was proposed to transform the changed strain into a constant equivalent strain which conformed to the Wöhler curve.…”

Section: Factors Affecting the Fatigue Life Of Rubbermentioning

confidence: 99%

Research Progress on Fatigue Life of Rubber Materials

2022

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Rubber products will be fatigued when subjected to alternating loads, and working in harsh environments will worsen the fatigue performance, which will directly affect the service life of such products. Environmental factors have a great influence on rubber materials, including temperature, humidity, ozone, etc., all of which will affect rubber’s properties and among which temperature is the most important. Different rubber materials have different sensitivity to the environment, and at the same time, their own structures are different, and their bonding degree with fillers is also different, so their fatigue lives are also different. Therefore, there are generally two methods to study the fatigue life of rubber materials, namely the crack initiation method and the crack propagation method. In this paper, the research status of rubber fatigue is summarized from three aspects: research methods of rubber fatigue, factors affecting fatigue life and crack section. The effects of mechanical conditions, rubber composition and environmental factors on rubber fatigue are expounded in detail. The section of rubber fatigue cracking is expounded from macroscopic and microscopic perspectives, and a future development direction is given in order to provide reference for the research and analysis of rubber fatigue and rubber service life maximization.

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Section: Factors Affecting the Fatigue Life Of Rubbermentioning

confidence: 99%

Research Progress on Fatigue Life of Rubber Materials

2022

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“…e dynamical behaviours of the rubber [31,32] and electromagnetic force [33] are sensitive to temperature. A longer input voltage time corresponds to a higher temperature.…”

Section: Effect Of the Temperature And Input Voltage Duration On The mentioning

confidence: 99%

Model of the Secondary Path between the Input Voltage and the Output Force of an Active Engine Mount on the Engine Side

Zhang

Shi

2020

Mathematical Problems in Engineering

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e active engine mount (AEM) provides an effective solution to improve the acoustic and vibration comfort of a car. e same AEM can be installed for different engines and different vehicle bodies and attenuates the engine vibration, which is one of the most pressing challenges. To study this problem, this paper develops a mathematical model of a secondary path between the input voltage and output force of the AEM on the engine side considering the frequency-dependent characteristic of the stiffness, which includes the structure parameters of the AEM as well as the dynamics of the actuator, the fluid in the inertia track, the foundation (vehicle body), and the attenuated vibrating object (AEM preload or engine). e proposed model is validated by three test cases without vibration excitation, which are performed with different AEM preloads and foundations. e AEM is considered as an active part and passive part, the mass of which is determined experimentally. Parameter effect on the dynamic characteristics of the secondary path of the AEM is studied based on three tests and a numerical simulation.

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“…Hence, reliable characterization techniques for the determination have to be provided. One of many well-established methods that enable accurate quantification of material thermo mechanical properties is dynamic mechanical analysis (DMA) 4,5 . Although many reports have focused on the aging mechanisms and mechanical performances of aged rubber products [6][7][8][9] , only a few studies have been provided regarding the thermorheological properties, such as the storage modulus and the loss modulus, which are related to the phase angle (δ) on the basis of stress-strain behavior 10,11 .…”

Section: Introductionmentioning

confidence: 99%

Effect of thermo-oxidative aging on the Payne effect and hysteresis loss of carbon-black filled rubber vulcanizates

2022

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In the tire industry, the Payne effect and hysteresis loss of carbon-black (CB) filled rubber vulcanizates are the most concerning issues. CB filled rubber vulcanizates are susceptible to thermo-oxidative aging in the applications. In this paper, the effects of thermo-oxidative aging are investigated from experimental and theoretical aspects. The specimens are subjected to thermo-oxidative aging at 80, 100 and 120 °C for various periods of time ranging from 1 to 6 days and then the dynamic mechanical tests are conducted. The results show that both the storage modulus and the loss modulus increase with increasing aging time. The hysteresis loss of the material shows an increasing tendency with the increase of dynamic strain amplitude, aging time and aging temperature. The Kraus model is used to describe the Payne effect and a viscoelastic model consisting of dynamic strain amplitude and loss modulus is used to calculate the energy dissipation.

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A method to predict the dynamical behaviors of carbon black filled natural rubber at different temperatures

Cited by 16 publications

References 27 publications

Research Progress on Fatigue Life of Rubber Materials

Research Progress on Fatigue Life of Rubber Materials

Model of the Secondary Path between the Input Voltage and the Output Force of an Active Engine Mount on the Engine Side

Effect of thermo-oxidative aging on the Payne effect and hysteresis loss of carbon-black filled rubber vulcanizates

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