Estimation of Adhesion Hysteresis Using Rolling Contact Mechanics

Langmuir ◽  
2000 ◽  
Vol 16 (2) ◽  
pp. 622-625 ◽  
Author(s):  
Hongquan She ◽  
Manoj K. Chaudhury
Keyword(s):  
Contact Mechanics ◽  
Rolling Contact

scholarly journals On the influence of conformity on wheel–rail rolling contact mechanics

2016 ◽  
Vol 103 ◽  
pp. 647-667 ◽  
Author(s):  
Julio Blanco-Lorenzo ◽  
Javier Santamaria ◽  
Ernesto G. Vadillo ◽  
Nekane Correa
Keyword(s):  
Contact Mechanics ◽  
Rolling Contact

scholarly journals A Tribometric Device for the Rolling Contact of Soft Elastomers

2021 ◽  
Author(s):  
Brodie Hoyer ◽  
Rong Long ◽  
Mark E. Rentschler
Keyword(s):  
Contact Mechanics ◽  
Fundamental Problem ◽  
Finite Thickness ◽  
Medical Robotics ◽  
Adhesive Contact ◽  
Rolling Contact ◽  
Experimental Investigations ◽  
Pdms Substrate ◽  
Textured Surfaces ◽  
Tribometric Device

Abstract Rolling contact experimentation is a viable and instructive method for exploring the adhesive contact between surfaces. When applied to soft elastomeric or engineered surfaces, the results of such experiments can provide insights relevant to medical robotics, soft gripping applications, and reversible dry adhesives for bandages or wearable devices. We have designed and built a tribometric device to capture normal and tangential forces between a rolling indenter and substrate correlated with contact area imaging. The device was validated using an experimental setup involving a rigid, nominally smooth acrylic cylinder rolling against a flat polydimethylsiloxame (PDMS) substrate, the results of which matched favorably with accepted contact mechanics theories. The second test involved an indenter with a rigid core and thin (3 mm) smooth shell of a highly deformable, viscoelastic polyvinyl chloride (PVC) rolling on the same PDMS substrate. This test deviated significantly from analytical predictions, highlighting the effects of finite-thickness effects, viscoelasticity, and interfacial slip. This device will facilitate experimental investigations of the rolling contact mechanics between textured surfaces and soft tissue-like materials, which is an important fundamental problem in medical robotics.

A Theoretical Model for Estimating the Wear of the Disc Cutter

2011 ◽  
Vol 90-93 ◽  
pp. 2232-2236 ◽  
Author(s):  
Feng Hua Li ◽  
Zong Xi Cai ◽  
Yi Lan Kang
Keyword(s):  
Theoretical Model ◽  
Contact Mechanics ◽  
Structural Parameters ◽  
Rolling Contact ◽  
Disc Cutter

In this paper a method for evaluating the slip speed in rolling contact is introduced from the contact mechanics viewpoint. Based on the analysis of the wear factors of the disc cutter, a theoretical model which includes disc cutter structural parameters and boring parameters is proposed to estimate the wear of the disc cutter in normal wear conditions. This theoretical model provides a basis for estimating the wear of the disc cutter and determining the replacing time of the disc cutter.

Rolling contact mechanics of graded coatings involving frictional heating

2019 ◽  
Vol 230 (6) ◽  
pp. 1981-1997 ◽  
Author(s):  
Ali Nili ◽  
Saeed Adibnazari ◽  
Ardavan Karimzadeh
Keyword(s):  
Contact Mechanics ◽  
Frictional Heating ◽  
Rolling Contact ◽  
Graded Coatings

Non-linearity of non-steady rolling contact mechanics under the half-space assumption

2011 ◽  
Vol 49 (11) ◽  
pp. 1771-1790 ◽  
Author(s):  
L. Ren ◽  
G. Xie ◽  
S. D. Iwnicki
Keyword(s):  
Contact Mechanics ◽  
Half Space ◽  
Rolling Contact

scholarly journals Development and advancement in the wheel-rail rolling contact mechanics

2019 ◽  
Vol 691 ◽  
pp. 012034
Author(s):  
Sono Bhardawaj ◽  
Rakesh Chandmal Sharma ◽  
Sunil Kumar Sharma
Keyword(s):  
Contact Mechanics ◽  
Rolling Contact

scholarly journals Numerical Investigation into the Effect of Geometric Gap Idealisation on Wheel-Rail Rolling Contact in Presence of Yaw Angle

2019 ◽  
Vol 2019 ◽  
pp. 1-14 ◽  
Author(s):  
Boyang An ◽  
Jing Wen ◽  
Panjie Wang ◽  
Ping Wang ◽  
Rong Chen ◽  
...  
Keyword(s):  
Numerical Investigation ◽  
Contact Mechanics ◽  
Contact Force ◽  
Rolling Contact ◽  
Fast Calculation ◽  
Contact Patch ◽  
Track Dynamics ◽  
Yaw Angle ◽  
Contact Modelling

For a fast calculation of vehicle-track dynamics and wheel-rail contact mechanics, wheel-rail contact geometric gap is usually idealised in elliptic or nonelliptic form. These two idealisations deviate from the actual one if the lateral combined curvature within the contact patch is not constant or the yaw angle of wheelset exists. The influence of these idealisations on contact solution has not yet been deeply understood, and thus the accuracy of simplified contact modelling applied to vehicle-track dynamics and wheel-rail contact mechanics remains uncertain. This paper presents a numerical methodology to treat 3D wheel-rail rolling contact, in which the asymmetric geometric gap due to yaw angle is fully taken into account. The attention of this work is placed on investigating the effect of geometric gap idealisation on wheel-rail contact force, rolling contact solution, and wear distribution. It can help with the effective wheel-rail contact modelling on the computation of both vehicle-track dynamics and wheel-rail contact mechanics.

scholarly journals Tractive rolling contact mechanics of graded coatings

2012 ◽  
Vol 49 (6) ◽  
pp. 929-945 ◽  
Author(s):  
Mehmet A. Guler ◽  
Saeed Adibnazari ◽  
Yadolah Alinia
Keyword(s):  
Contact Mechanics ◽  
Rolling Contact ◽  
Graded Coatings ◽  
Tractive Rolling
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