Evaluation of Adhesion and Hysteresis Friction of Rubber–Pavement System

Al-Assi, Mohammad; Kassem, Emad

doi:10.3390/app7101029

Cited by 37 publications

(21 citation statements)

References 9 publications

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“…This sounds normal because tyre becomes softer due to its viscoelastic nature. This remark is in accordance with existing related studies on this subject area [1,27,41,42]. The drop in BPN (from 10 • C to 30 • C) which is around 35% for H D , 25% for H B and H E as temperature increases is beyond the standard error of the measurements which is around 3% to 0.5% and presented in the form of standard error bars.…”

Section: Temperature Effect Resultssupporting

confidence: 92%

How Can Sustainable Materials in Road Construction Contribute to Vehicles’ Braking?

2020

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Vehicles’ braking is a key factor towards safer driving. In particular, tyre–pavement friction is connected with both industry and infrastructure requirements in terms of tyre characteristics and frictional properties of pavement surfaces respectively that both contribute to safe braking. For this reason, tyre–pavement friction is considered as one of the most pressing emergencies in roadway assets in order to reduce skidding related accidents. At the same time, sustainability aspects have been raised in modern infrastructure engineering. Hence, an issue is introduced on how sustainable materials used for pavement construction may contribute to tyre–pavement and consequently vehicles’ braking. For this reason, a laboratory process is developed to investigate the frictional properties of several utilized in pavement wearing courses including both traditional and sustainable materials (reacted activated rubber—RAR and reclaimed asphalt pavement—RAP). Environmental conditions (seasonal temperature changes, rainfall effect and contamination caused by dust formation) are simulated in the laboratory and vehicles’ braking is investigated using the British Pendulum Tester (BPT). Results provide a good explanation for the vehicles’ braking ability under the investigated conditions for both traditional and sustainable materials. Ultimately, it is proved that asphalt mixture types with RAR modifier or RAP material exhibit a satisfactory performance towards providing a safe road surface for the moving vehicles.

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Section: Temperature Effect Resultssupporting

confidence: 92%

How Can Sustainable Materials in Road Construction Contribute to Vehicles’ Braking?

2020

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“…As reported by Al-Assi and Kassem [1] that rubber generates three different forms of friction which are adhesion, deformation and wear. They also stated that the bulk deformation due to hysteresis causes energy losses as rubber slides over the rough surface.…”

Section: Fig 3 Track Chain With Rubber Pads Adnan -Malaysian Armourmentioning

confidence: 90%

“…It is also possibly due to the shear load resulting from the relative movement of the blocks and the temperature rise due to the hysteresis of these loads. In this case, it was possibly observed that the rubber bush was subjected to hysteresis friction that is caused by the energy dissipation due to internal material damping during the deformation process [1,14]. The deformed part occurs during the sliding of a rubber element across the rough surface.…”

Section: Adnan Malaysian Armoured Vehicle Track Shoementioning

confidence: 99%

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Failure Characteristics on ADNAN Malaysian Armoured Vehicle Track Shoe and its Improvements

Hussin¹,

CheLah²,

Aziz³

2020

IJEAT

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 Abstract: Armoured military vehicle is designed to withstand the stresses impact from bullets, missiles or any explosive shells. It is applied to the vehicle in order to protect the personnel inside from enemy fire and also to protect from any threats other than deliberate attack. However, an issue arises when it comes for track link shoes of the armoured vehicle which already became problems to the designers and users of tracked vehicles. The track link problems usually related to the problems that already existed because of its excessive weight, excessive noise and vibrations, overheating of rubber track elements and road wheels, etc. All of these existing problems could leads to the failure of pin and bushing, chunking of the pads and breaking of the track links itself. Instead of that, today's tracks are much more expensive not only in terms of initial cost but also the replacement cost. Here, this paper reviews some of the failure cases and improvements of the armoured-vehicle itself. It also covers a real study on the failure assessment of the ADNAN (The Malaysian Armoured-Vehicle) Track Shoe.Index Terms: military vehicle, rubber track, pin and bushing, impact stress, vibration.

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“…Changes in asphalt adhesion are caused by the surface's micro-texture (0.1 to 0.5 mm), which is an aggregate composition related property, as the aggregate ability to retain the roughness against the traffic polishing action controls the rate of decrease in adhesion. Hysteresis is the lagging of peak deformation behind peak load, occurring to the tire after passing across asperities of rough surface, caused by the asphalt's macro texture (0.5 to 50 mm), created by cracks and fractures in the asphalt [7].…”

Section: Introductionmentioning

confidence: 99%

Mapping Asphaltic Roads’ Skid Resistance Using Imaging Spectroscopy

Carmon

Ben‐Dor

2018

Remote Sensing

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The purpose of this study is to evaluate a realistic feasibility of using hyperspectral remote sensing (also termed imaging spectroscopy) airborne data for mapping asphaltic roads' transportation safety. This is done by quantifying the road-tire friction, an attribute responsible for vehicle control and emergency stopping. We engaged in a real-life operational scenario, where the roads' friction was modeled against the reflectance information extracted directly from the image. The asphalt pavement's dynamic friction coefficient was measured by a standardized technique using a Dynatest 6875H (Dynatest Consulting Inc., Westland, MI, USA) Friction Measuring System, which uses the common test-wheel retardation method. The hyperspectral data was acquired by the SPECIM AisaFenix 1K (Specim, Spectral Imaging Ltd., Oulu, Finland) airborne system, covering the entire optical range (350-2500 nm), over a selected study site, with roads characterized by different aging conditions. The spectral radiance data was processed to provide apparent surface reflectance using ground calibration targets and the ACORN-6 atmospheric correction package. Our final dataset was comprised of 1370 clean asphalt pixels coupled with geo-rectified in situ friction measurement points. We developed a partial least squares regression model using PARACUDA-II spectral data mining engine, which uses an automated outlier detection procedure and dual validation routines-a full cross-validation and an iterative internal validation based on a Latin Hypercube sampling algorithm. Our results show prediction capabilities of R 2 = 0.632 for full cross-validation and R 2 = 0.702 for the best available model in internal validation, both with significant results (p < 0.0001). Using spectral assignment analysis, we located the spectral bands with the highest weight in the model and discussed their possible physical and chemical assignments. The derived model was applied back on the hyperspectral image to predict and map the friction values of every road pixel in the scene. Combining the standard method with imaging spectroscopy may provide the required expansion of the available data to furnish decision makers with a full picture of the roads' status. This technique's limitations originate mainly in compositional variations between different roads, and the requirement for the application of multiple calibrations between scenes. Possible improvements could be achieved by using more spectral regions (e.g., thermal) and additional remote sensing techniques (e.g., LIDAR) as well as new platforms (e.g., UAV).

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Evaluation of Adhesion and Hysteresis Friction of Rubber–Pavement System

Cited by 37 publications

References 9 publications

How Can Sustainable Materials in Road Construction Contribute to Vehicles’ Braking?

How Can Sustainable Materials in Road Construction Contribute to Vehicles’ Braking?

Failure Characteristics on ADNAN Malaysian Armoured Vehicle Track Shoe and its Improvements

Mapping Asphaltic Roads’ Skid Resistance Using Imaging Spectroscopy

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