The measurement of dynamic radii for passenger car tyre

Anghelache, Gabriel; Moisescu, Raluca

doi:10.1088/1757-899x/252/1/012014

Cited by 12 publications

(9 citation statements)

References 3 publications

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“…At lower strains, quantitatively about 50% of the nominal strain, all the models present acceptable predictions where Ogden and second‐order polynomial seem to be solely appropriate for large strains. Apparently, Neo Hook and Mooney‐Rivlin fitting curves do not show any inflection points which indicates that these models cannot predict the increased stiffness characteristics of elastomers at high strains especially for pure butadiene rubber and to some extent BE20 containing epoxy‐polyester hybrid. Interestingly, the mentioned models converged to the experimental data in Figs.…”

Section: Resultsmentioning

confidence: 95%

An investigation into hyper‐elastic behavior of BR/epoxy‐polyester hybrid/nanoclay nanocomposites

Zoghi

Naderi

Shokoohi³

2017

Polymer Composites

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Butadiene Rubber (BR) was compounded with different compositions of Cloisite 15 and epoxy‐polyester hybrid (EPH), a powder coating waste, using a laboratory‐scale internal mixer at 100°C. Micromechanics of BR/Cloisite 15A (100/3, 100/5, and 100/7), BR/EPH (100/10, 100/20, 100/30, and 100/40) and BR/EPH/Cloisite 15A (100/20/3, 100/20/5, and 100/20/7) compounds were compared to the pure BR through uniaxial tensile and compression measurements. Micromechanical models including Halpin‐Tsai, Leidner‐Woodhams, Pukanszky, and Guth were used to estimate the nanoclay aspect ratio among which Halpin‐Tsai could present more acceptable conclusions confirmed with transmission electron microscopy (TEM). Finite element modeling through constitutive hyper‐elastic models, that is, Arruda‐Boyce, Marlow, Third‐order Ogden, Mooney‐Rivlin, second‐order polynomial, Van der Waals, Neo‐Hooke, and Yeoh was conducted (ABAQUS® software). Simulation results compared with the experimental data suggested that Marlow, Van der Waals, and Yeoh could describe the behavior of this material at whole strain ranges with an acceptable accuracy. POLYM. COMPOS., 39:E2028–E2035, 2018. © 2017 Society of Plastics Engineers

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Section: Resultsmentioning

confidence: 95%

An investigation into hyper‐elastic behavior of BR/epoxy‐polyester hybrid/nanoclay nanocomposites

Zoghi

Naderi

Shokoohi³

2017

Polymer Composites

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“…Then, they have explored that the decreases in tire inflation pressure lead the friction coefficient to drop 5% and 9%, respectively as the vehicle speed increases. Moreover, the effective rolling radius reduced greatly as the vehicle speed increases at same tire pressure [11]. This situation was also seen in frequency domain and it was explored that the increases in vehicle speed vary the peak amplitude of rolling radius [12].…”

Section: Introductionmentioning

confidence: 76%

Experimental study on effects of vehicle speed variations on effective rolling radius according to the changes in tire pressure

Köylü

2020

International Journal of Automotive Engineering and Technologies

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This study aims to experimentally examine the effects of vehicle speed changes on the vertical resonance frequency of effective rolling radius variations for applying to TPMS (Tire Pressure Monitoring System). For this, the road tests have been conducted at constant vehicle speeds 30, 60, 90km/h for tire pressures 15, 20, 25, 30, 35psi. In these tests, the effective rolling radius changes have been measured. Test results show that the vehicle speed changes cause the resonance frequency to shift at same tire pressure. Therefore, this study shows that the changes in vertical resonance frequency resulting from vehicle speed changes may cause wrong tire pressure information to be taken by TPMS.

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“…[35] Deviations mostly appear at nominal strains larger than 50% of the yield elongation which confirms the criteria reported in similar works. [ 4,33 ]…”

Section: Resultsmentioning

confidence: 99%

“…[35] Deviations mostly appear at nominal strains larger than 50% of the yield elongation which confirms the criteria reported in similar works. [4,33] As seen in Figure 3, Van der Waals form deviates from the experimental results in nominal strains smaller than 50% of the yield elongation. Anyhow, nominal strain stability limit of Van der Waals model (about -1 to 9) is affected neither in tension nor compression regions upon introduction of nanoclay.…”

Section: Hyperelastic Modelsmentioning

confidence: 85%

“…[3] Hyperelastic properties and the mechanical behavior of elastomers, inherently presenting large strains, determine the tire dynamics contacting the road. [4] Availability of reliable models for predicting the mechanical/ hyperelastic behavior of rubber parts is of a great industrial importance because it would economize the time/ cost expenses imposed by multiple experimental stages required to develop a new product. [5] Halpin-Tsai model, liner rule of mixtures (LROMs), inverse rule of mixtures (IROMs), Einstein and Kerner equations, Hashin, Shtrikman and Takayanagi model, and so on have been proposed for nanocomposites to predict the mechanical properties of nanocomposites including tensile modulus and yield strength.…”

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confidence: 99%

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Dispersion state and hyperelastic behavior of tire tread compounds reinforced with nanoclay: Uniaxial tensile and compression studies

Shokoohi¹,

Naderi

2021

Vinyl Additive Technology

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Tire‐tread compounds based on natural rubber, butadiene rubber, and styrene‐butadiene rubber (65/20/15) were reinforced with Cloisite 15A. Clay state‐of‐dispersion in the ternary matrix (clay aspect ratio and clay/matrix interface yield strength) was estimated using Halpin–Tsai, Guth, and Leidner–Woodhams–Pukanszky micro‐mechanical models. The aspect ratio suggested by Halpin–Tsai (9.7) and Guth (16) models both propounded partially intercalated microstructure. Transmission electron microscopy micrographs indicated higher reliability of Halpin–Tsai theory. Wetting parameter values indicated the affinity of Cloisite 15A to disperse in butadiene rubber. However, it seems that clay particles were not provided with proper compounding conditions to further stabilize their thermodynamic state. The poor matrix/clay adhesion was responsible for the decrease in matrix/clay interface strength and thickness upon increasing clay content according to Leidner–Woodhams–Pukanszky. Hyperelastic modeling was conducted using Abaqus software (five strain energy potential forms) on the basis of large deformation uniaxial tension/compression measurements. Effect of nanoclay on the crosslink‐density of samples was justified by C10 (Mooney–Rivlin) and locking‐stretch (Van der Waals) values. The sample containing 1 phr nanoclay presented the best fit to the hyperelastic models among the rest conforming to its small value of global interaction parameter “a”(Van der Waals model) calculated explaining minimum deviations. Overall, Marlow and Ogden provided the best consistency with the experimental stress–strain results.

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The measurement of dynamic radii for passenger car tyre

Cited by 12 publications

References 3 publications

An investigation into hyper‐elastic behavior of BR/epoxy‐polyester hybrid/nanoclay nanocomposites

An investigation into hyper‐elastic behavior of BR/epoxy‐polyester hybrid/nanoclay nanocomposites

Experimental study on effects of vehicle speed variations on effective rolling radius according to the changes in tire pressure

Dispersion state and hyperelastic behavior of tire tread compounds reinforced with nanoclay: Uniaxial tensile and compression studies

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