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Добірка наукової літератури з теми "Rubber-cord material"

Автор: Grafiati
Опубліковано: 30 травня 2022
Оновлено: 31 травня 2022

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Статті в журналах з теми "Rubber-cord material"

1

Cembrola, R. J., and T. J. Dudek. "Cord/Rubber Material Properties." Rubber Chemistry and Technology 58, no. 4 (September 1, 1985): 830–56. http://dx.doi.org/10.5254/1.3536096.

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Анотація:
Abstract Recent developments in nonlinear finite element methods (FEM) and mechanics of composite materials have made it possible to handle complex tire mechanics problems involving large deformations and moderate strains. The development of an accurate material model for cord/rubber composites is a necessary requirement for the application of these powerful finite element programs to practical problems but involves numerous complexities. Difficulties associated with the application of classical lamination theory to cord/rubber composites were reviewed. The complexity of the material characterization of cord/rubber composites by experimental means was also discussed. This complexity arises from the highly anisotropic properties of twisted cords and the nonlinear stress—strain behavior of the laminates. Micromechanics theories, which have been successfully applied to hard composites (i.e., graphite—epoxy) have been shown to be inadequate in predicting some of the properties of the calendered fabric ply material from the properties of the cord and rubber. Finite element models which include an interply rubber layer to account for the interlaminar shear have been shown to give a better representation of cord/rubber laminate behavior in tension and bending. The application of finite element analysis to more refined models of complex structures like tires, however, requires the development of a more realistic material model which would account for the nonlinear stress—strain properties of cord/rubber composites.
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2

Ren, Jie, and Jian Lin Zhong. "The Accurate Prediction Method of Tension Modulus for Nylon Cord/Rubber Composite Material." Applied Mechanics and Materials 575 (June 2014): 115–20. http://dx.doi.org/10.4028/www.scientific.net/amm.575.115.

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Анотація:
To study the change rule of tension modulus for nylon cord/rubber composite material, a accurate prediction method is provided. Firstly, the calculation method for relevant parameters for rubber material Mooney-Rivilin constitutive model is proposed , the amendment formula for cord tension modulus is derived. Secondly, based on composite material micromechanics, the accurate numerical model is built, the equivalent modulus is calculated and compared to the experiment results in reference. Finally, the accurate prediction formula of tension modulus for the nylon cord/rubber composite material is provided, compare the equivalent tension modulus obtained by the prediction formula and the numerical model. The results show that: the method to build the numerical model of nylon/ cord-rubber composite material is correct, the prediction formula of the tension modulus for the nylon cord/rubber composite could predict the tension modulus well.
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3

Lu, Zhaijun, Penghao Si, Hao Xiao, and Jiefu Liu. "Influence of Aging Time on Vertical Static Stiffness of Air Spring." Applied Sciences 12, no. 9 (April 22, 2022): 4219. http://dx.doi.org/10.3390/app12094219.

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Анотація:
To study the aging mechanism of air springs, the effect of aging time on the vertical static stiffness of an air spring was systematically analyzed by means of an accelerated aging test and finite element simulation. Accelerated aging tests were carried out on the entire air spring, rubber material, and cord material, and the vertical static stiffness and elastic moduli of the rubber and cord materials of the entire air spring were obtained with aging time. The finite element simulation model of the air spring was established. Based on the experimental data, the influences of the elastic moduli of the rubber and cord materials, aged for different times, and the cord angle on the vertical static stiffness of an air spring were simulated and analyzed, and the law of the influence of aging on the vertical static stiffness characteristics of air springs was revealed.
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4

Chen, Xian Zhong. "Performance Analysis of Magnetorheological Rubber Reinforcing Cord Fabric." Applied Mechanics and Materials 744-746 (March 2015): 1566–69. http://dx.doi.org/10.4028/www.scientific.net/amm.744-746.1566.

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Анотація:
Magnetorheological rubber material is a kind of composite material of magneto elastic coupling with multi functions, which is composed of magnetic particles and the mixed rubber films with the magnetic properties of the material, but because of its mechanical properties has limited practical use, and nylon cloth which has the advantages of high strength, dimensional stability, can be the ideal framework of magnetorheological rubber. The results show that for the magnetorheological rubber made from the NR/SBR blend, the tensile strength of the magnetorheological rubber with the cord fabric can greatly improve, the tensile strength can reach 17.8MPa, but also can improve the shear modulus of magnetorheological rubber and zero field storage shear modulus.
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5

Chen, Yusheng, and Jeremy L. Schlarb. "Steel Cord–Rubber Adhesion with SEM/EDX." Tire Science and Technology 46, no. 1 (January 1, 2018): 27–37. http://dx.doi.org/10.2346/tire.18.460102.

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Анотація:
ABSTRACT Brass-coated steel cords are widely used as reinforcement material for rubber composites. The adhesion between steel cord and rubber is critical throughout the lifetime use of steel cord/rubber composites; thus, the adhesion mechanism has been a focus of the rubber industry for several decades. Various modern analytical instruments, such as X-ray spectroscopy and mass spectroscopy, have been applied to the study of this bonding interface. In this paper, scanning electron microscopy with energy dispersive X-ray spectroscopy (SEM/EDX) was used to research the morphology of the steel cord surface and the adhesion mechanism. According to these morphology testing results, the rubber residue bands were observed be orientated and located mostly in Cu/Zn void areas. Further research reveals that macro-structure adhesion layer leads to interlocking mechanism for rubber residue.
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6

Kim, Byeong Soo, Byung Young Moon, and Sung Kwan Kim. "Performance Evaluation of Spring for the Vehicle Suspension System Using the Nonlinear Finite Element Method." Applied Mechanics and Materials 635-637 (September 2014): 594–97. http://dx.doi.org/10.4028/www.scientific.net/amm.635-637.594.

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Анотація:
Air spring is used for the suspension system and it affects the vehicle stability and riding comfort by improving the impact-relief, braking, and cornering performance. Air Spring is comprised of the upper plate, lower plate, and rubber sleeve. Rubber sleeve is the composite material, which is made up of combination of rubber and Nylon, and the characteristics are changed according to the shape of rubber-sleeve, the angle of reinforcement cord. In this study, the distribution of internal stresses and the deformation of rubber composite material are analyzed through the nonlinear finite element method. The result showed that the internal maximum stresses and deformations about the changes of cord angle caused the more the Young's modulus decrease, the more maximum stress reduced.
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7

Shield, C. K., and G. A. Costello. "The Effect of Wire Rope Mechanics on the Material Properties of Cord Composites: An Elasticity Approach." Journal of Applied Mechanics 61, no. 1 (March 1, 1994): 1–8. http://dx.doi.org/10.1115/1.2901399.

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Анотація:
An analytical model is presented for the behavior of cord reinforced rubber composite plates taking into account the extension-twisting coupling of the cord based on an equilibrium formulation. The effect of the cord mechanics on the unidirectional lamina properties is investigated for various modulus ratios and geometries. The equations of equilibrium are derived for the unidirectional plate. Solutions are found for the following plate problems, uniaxial tension along the cord direction, uniaxial tension perpendicular to the cord direction, and pure shear. These solutions are used to obtain average material properties and to investigate the influence of cord mechanics on the plate response. For very flexible synthetic rubbers, the behavior of the unidirectional lamina exhibits a good deal of extension twisting coupling, whereas for stiffer vulcanized rubbers, the rubber acts to restrain the cords from unwinding.
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8

Chen, Hongyue, Hongyan Chen, Pengfei Li, and Sizhe Liu. "Experimental analysis and prediction for the bonding strength of steel cord of conveyor belt under the temperature influence." AIP Advances 12, no. 5 (May 1, 2022): 055305. http://dx.doi.org/10.1063/5.0090434.

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Анотація:
To research the effect of temperature on the interfacial bonding strength of the steel cord rubber conveyor belt, an electronic universal material testing machine and a temperature control box were used as the test equipment. The withdrawal force of the steel cord skeleton of the rubber conveyor belt was tested in the temperature range of −30 °C to +40 °C. Concurrently, the interfacial morphology between the steel cord and rubber at different temperatures was observed by using an ultra deep field electron microscope. Finally, different bonding strength prediction models were established. The results show that the variation trend of the steel cord withdrawal force with displacement is the same at different temperatures. With the increase in temperature, the interfacial bonding strength between the steel cord and the rubber matrix decreases gradually; the second-order polynomial bonding strength prediction model can meet the prediction requirements of the steel cord bonding strength at different temperatures, and the errors are controlled within 5%.
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9

Kabe, K., K. Rachi, N. Takahashi, and Y. Kaga. "Tire Design Methodology Based on Safety Factor to Satisfy Tire Life (Simulation Approach to Truck and Bus Tire Design)." Tire Science and Technology 33, no. 4 (October 1, 2005): 195–209. http://dx.doi.org/10.2346/1.2174343.

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Анотація:
Abstract A tire is not only simply made of rubber, but also twisted cord, which we can call FRR (Fiber Reinforced Rubber). The rubber in FRR is made of many materials, including rubber compound, carbon black, silica, and other materials. FRR is a double composite material, which means a particle reinforced material in a microscopic view and also a fiber reinforced one in a macroscopic view. Therefore, it is very difficult to apply fracture mechanics to the evaluation of tire durability on a practical tire design level. This paper gives a proposal for a new design methodology considering the actual tire condition which gives tire profile growth and rubber aging due to heat build-up under operation. These two issues are especially important for truck and bus tire design. Tire profile growth is a very important one because the change of tire profile induces different strains in the rubber at the same location in the tire during its life. We apply the FEM (Finite Element Modeling) based Double Inflation Pressure (DIP) method to simulate the experimental fact of the change of tire profile. In order to use the relationship between the change of the tire profile and change of rubber properties, like breaking strain in the tire as service time passes, the concept of safety factor is introduced. The low modulus rubber parts in the tire dominate the strain field and allow the large deformations of the tire. Safety factors derived from the strain field are called “Margin of Safety.” On the other hand, the durability of FRR, like the belt layer and carcass layer with the cord part, is evaluated by stress because the FRR part reacts to the stress of the internal pressure and load of the tire. But, the Margin of Safety of the rubber part is more important because the cord part has enough safety factor in comparison with the rubber part. Tire life is predicted with the Margin of Safety described above.
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10

Teater, Rachel H., Kristine M. Fischenich, Benjamin B. Wheatley, Lisa Abrams, Sheryl A. Sorby, Harlal Singh Mali, Anil Jain, and Tammy L. Haut Donahue. "Assessment of the compressive and tensile mechanical properties of materials used in the Jaipur Foot prosthesis." Prosthetics and Orthotics International 42, no. 5 (April 6, 2018): 511–17. http://dx.doi.org/10.1177/0309364618767143.

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Анотація:
Background: Designed by Dr. Sethi, the Jaipur Foot prosthesis is ideally suited for amputees in developing countries as it utilizes locally sourced, biodegradable, inexpensive materials and is focused on affordability and functionality. To date, however, no data have been reported on the material properties of the foot components. Objectives: The goal of this work was to evaluate mechanical properties of the Jaipur Foot components to guide foot design and manufacturing and reduce weight. Study Design: Experimental. Methods: Mechanical testing was conducted on two types of woods (ardu and cheed), microcellular rubber, tire cord, cushion compound, tread compound, and skin-colored rubber. Each material was subjected to testing in either tension or compression based on its location and function in the foot. Samples were tested before and after vulcanization. Two-sample t-tests were used to assess statistical differences. Results: Cheed compressed perpendicular to the grain had a significantly higher modulus of elasticity than ardu ( p < 0.05); however, cheed had a higher density. Vulcanization significantly increased the modulus of skin-colored rubber, cushion compound, and tread compound ( p < 0.05) and decreased the moduli of both microcellular rubber and tire cord ( p < 0.05). Conclusion: The material property results from this study provide information for computer modeling to assess material construction on overall foot mechanics for design optimization. Ardu wood was ideal based on the desire to reduce weight, and the tire cord properties serve well to hold the foot together. Clinical relevance With new knowledge on the material properties of the components of the Jaipur Foot, future design modifications and standardized fabrication can be realized, making the Jaipur Foot more available on a global scale.
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Більше джерел

Дисертації з теми "Rubber-cord material"

1

Behroozinia, Pooya. "Finite Element Analysis of Defects in Cord-Rubber Composites and Hyperelastic Materials." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/87703.

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Анотація:
In recent years, composite materials have been widely used in several applications due to their superior mechanical properties including high strength, high stiffness, and low density. Despite the remarkable advancements in theoretical and computational methods for analyzing composites, investigating the effect of lamina properties and lay-up configurations on the strength of composites still remains an active field of research. Finite Element Method (FEM) and Extended Finite Element Method (XFEM) are powerful tools for solving the boundary value problems. One of the objectives of this work is to employ XFEM as a defect identification tool for predicting the crack initiation and propagation in composites. Another major objective of this study is to investigate the damage development in hyperelastic materials. Two Finite Element models are adopted to study this phenomenon: multiscale modeling of the cord-rubber composites in tires and modeling of intelligent tires for evaluating the feasibility of the proposed defect detection technique. A new three-dimensional finite element approach based on the multiscale progressive failure analysis is employed to provide the theoretical predictions for damage development in the cord-rubber composites in tires. This new three-dimensional model of the cord-rubber composite is proposed to predict the different types of damage including matrix cracking, delamination, and fiber failure based on the micro-scale analysis. This process is iterative and data is shared between the finite element and multiscale progressive failure analysis. It is shown that the proposed cord-rubber composite model solves the problems corresponding to embedding the rebar elements to the solid elements and also increases the fidelity of numerical analysis of composite parts since the laminate characteristic variables are determined from the microscopic parameters. A tire rolling analysis is then conducted to evaluate the effects of different variables corresponding to the cord-rubber composite on the performance of tires. Tires operate on the principle of safe life and are the only parts of the vehicle which are in contact with the road surface. Establishing a computational method for defect detection in tire structures will help manufacturers to fix and develop more reliable tire designs. A Finite Element model of a tire with a tri-axial accelerometer attached to its inner-liner was developed and the effects of changing the normal load, longitudinal velocity and tire-road contact friction on the acceleration signal were investigated. Additionally, using the model, the acceleration signals obtained from several accelerometers placed in different locations around the inner-liner of the intelligent tire were analyzed and the defected areas were successfully identified. Using the new intelligent tire model, the lengths, locations, and the minimum number of accelerometers in damage detection in tires are determined. Comparing the acceleration signals obtained from the damaged and original tire models results in detecting defects in tire structures.
PHD
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2

HARAKUNI, PRASAN B. "MECHANISTIC INVESTIGATION OF THE SULFIDE LAYER FORMED AT THE RUBBER-STEEL TIRE CORD INTERFACE." University of Cincinnati / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1172866725.

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3

Гребенюк, Сергій Миколайович, Сергей Николаевич Гребенюк та Sergii M. Grebeniuk. "Напружено-деформований стан просторових конструкцій на основі гомогенізації волокнистих композитів". Thesis, Запорізький національний технічний університет, 2016. http://eir.zntu.edu.ua/handle/123456789/1212.

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Анотація:
Гребенюк, С. М. Напружено-деформований стан просторових конструкцій на основі гомогенізації пружних сталих волокнистих композитів [Текст]: дис. … д-ра тех. наук: 01.02.04 /Гребенюк Сергій Миколайович. – Запоріжжя, 2016. – 319 с.
UK: На основі аналітичних розв’язків методом представницького об’ємного елемента отримані співвідношення для ефективних пружних сталих композита з транстропними матрицею і волокном. Побудована матриця жорсткості паралелепіпедного скінченного елемента на основі моментної схеми, яка враховує особливості просторової орієнтації волокон. Описано підхід до розв’язку геометрично нелінійної задачі за допомогою модифікованого метода Ньютона-Канторовича. Запропоновані підходи використано при створенні пакету прикладних програм. Визначено напружено-деформований стан гумовокордних віброізоляторів та автомобільної шини, а також головного обтічника ракетоносія. EN: In terms of analytical solutions by use of the presentation box unit the correlations for the effective elastic constants of the composite with the trans-tropic matrix and fiber are first obtained. It is constructed the stiffness matrix of the parallelepiped finite element on the basis of the moment scheme taking into account specific of the spatial orientation of the fibers. The approach to the solution of the geometrically non-linear problem with the help of modified Newton-Kantorovich method is described. On the basis of the approaches proposed it is developed package of the applied programs. The stress-strained state of the rubber-cord vibration isolators and the car tyre as well as the main carrier rocket fairing is determined. RU: На основе аналитических решений методом представительного объемного элемента получены соотношения для эффективных упругих постоянных композита с транстропными матрицей и волокном. Построена матрица жесткости параллелепипедного конечного элемента на основе моментной схемы, которая учитывает особенности пространственной ориентации волокон. Описан подход к решению геометрически нелинейной задачи с помощью модифицированного метода Ньютона-Канторовича. Предложенные подходы использованы при создании пакета прикладных программ. Определено напряженно-деформированное состояние резинокордных виброизоляторов и автомобильной шины, а также головного обтекателя ракетоносителя.
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4

Ashirgade, Akshay A. "Mechanistic study of the rubber-brass adhesion interphase." University of Cincinnati / OhioLINK, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1291145141.

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5

Han, Young-hoon. "Fatigue life prediction for cord-rubber composite tires using a global-local finite element method." Thesis, 2003. http://wwwlib.umi.com/cr/utexas/fullcit?p3120303.

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Частини книг з теми "Rubber-cord material"

1

Kopecky, Miroslav. "Fatigue and Damage Testing Rubber with Steel Cord Materials Combined." In Materials Science Forum, 2201–4. Stafa: Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-462-6.2201.

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2

Bolzon, G., B. A. Schrefler, and R. Vitaliani. "A 3-D Geometrically Non Linear Analysis of Inflated Cord-Reinforced Membranes of Rubber-like Materials." In Computational Mechanics ’88, 779–82. Berlin, Heidelberg: Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-61381-4_197.

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Тези доповідей конференцій з теми "Rubber-cord material"

1

Furusawa, Masamori, Yuuya Tsukada, Takuya Morimoto, and Hiroshi Iizuka. "Improvement of Bending Fatigue Strength for Hybrid Cords With Carbon and Glass Fibers." In ASME 2009 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/detc2009-86323.

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Анотація:
Synchronous belts are rubber-composite materials with rubber, helical cords and facing fabrics. The helical cord is the tension member of the belt and is made of glass fibers, aramid fibers, or steel wires. Recent trends require increasingly high stiffness for the rubber belts. The use of carbon fibers and hybrid cords with carbon fibers are considered to be an effective way to achieve high stiffness for helical cords. This paper presents the study is to improve the bending fatigue strength of hybrid cords, where the center strand is made of carbon fibers, and the outer strands are made of glass fibers. The optimum cord composition for good bending fatigue durability is discussed following experimentation, mechanical analysis using a simplified mechanical model and FEM analysis. The model reasonably explained the initiation of the fatigue failure initiation site in the hybrid cords. The optimum cord composition was proposed for the bending fatigue strength basing on the simplified mechanical model. This was verified by experimental data showing good fatigue life. The use of such helical cords can considerably extend the operating life of synchronous belts.
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2

Park, Taewon, and Seong Soo Kim. "A Study on the Performance of Air Suspension for Different Kinds of Rubber and Cord Materials Used in Rubber Tube." In SAE 2006 World Congress & Exhibition. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 2006. http://dx.doi.org/10.4271/2006-01-0003.

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3

Shishkina, N. N., and L. Yu Zakirova. "The Use of Blocked Isocyanates to Increase the Adhesion of the Glue-Free Rubber – Polyester Cord." In Fundamental and applied problems of materials creation and phases of technologies for textile industry. Sibac, 2019. http://dx.doi.org/10.32743/fun.app.probl.2021.131-140.

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