The actual contact area and friction properties of elastomers under frictional contact with solid surfaces

Wear ◽  
1971 ◽  
Vol 18 (6) ◽  
pp. 439-448 ◽  
Author(s):  
G.M. Bartenev ◽  
V.V. Lavrentjev ◽  
N.A. Konstantinova
Keyword(s):  
Contact Area ◽  
Frictional Contact ◽  
Solid Surfaces ◽  
Actual Contact ◽  
Actual Contact Area

The Actual Contact Area and Friction Properties of Elastomers under Frictional Contact with Solid Surfaces

1972 ◽  
Vol 45 (4) ◽  
pp. 1094-1103 ◽  
Author(s):  
G. M. Bartenev ◽  
V. V. Lavrentjev ◽  
N. A. Konstantinova
Keyword(s):  
Surface Layer ◽  
Glass Transition ◽  
Friction Force ◽  
Contact Area ◽  
Frictional Contact ◽  
Solid Surfaces ◽  
Actual Contact ◽  
Actual Contact Area ◽  
Simultaneous Measurements ◽  
Wide Range

Abstract Using a specially designed apparatus simultaneous measurements were carried out of the area of contact and the friction between elastomers and solid surfaces. For a wide range of load, the friction force is proportional to the actual contact area and the friction constant depends only on the nature of the rubbing solids. In the range of low sliding velocities the actual contact area remains almost constant. At high sliding velocities increase of the friction force is associated with the process of the mechanical glass-transition of the surface layer of the crosslinked rubber which causes the actual contact area to decrease.

Determining the Actual Contact Area in Mutual Lapping of Surfaces

2021 ◽  
Vol 41 (5) ◽  
pp. 437-438
Author(s):  
K. R. Muratov ◽  
E. A. Gashev ◽  
T. R. Ablyaz ◽  
P. V. Maksimov ◽  
M. S. Permyakov ◽  
...  
Keyword(s):  
Contact Area ◽  
Actual Contact ◽  
Actual Contact Area

scholarly journals EFFECT OF RATIO OF MATERIAL HARDNESSES, AVERAGE PRESSURE AND ROUGHNESS PARAMETERS ON ACTUAL CONTACT AREA OF ASSEMBLED SURFACES

2021 ◽  
pp. 32-36
Author(s):  
M. M. Matlin ◽  
V. A. Kazankin ◽  
E. N. Kazankina ◽  
E. V. Kapinosova
Keyword(s):  
Contact Area ◽  
Rough Surfaces ◽  
Average Pressure ◽  
Roughness Parameters ◽  
Actual Contact ◽  
Actual Contact Area ◽  
Elastic Plastic

The paper describes the influence of various factors, including the ratio of hardness, average pressure, radius of microasperities of the surface, affecting the value of the actual contact area of rough surfaces of flat parts mated in fixed joints. The study was carried out using the dependences obtained by the authors describing the elastic-plastic contact of rough surfaces.

scholarly journals A Shear Strength Model for a Subsidence Backfill Body Based on Adhesion Friction Theory

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Lei Liu ◽  
Shengyou Zhang ◽  
Weidong Liu ◽  
Wei Sun ◽  
Jinxin Li
Keyword(s):  
Shear Strength ◽  
Contact Area ◽  
Adhesive Contact ◽  
Calculation Model ◽  
Strength Calculation ◽  
Strength Analysis ◽  
Actual Contact ◽  
Actual Contact Area ◽  
Friction Theory

Proper determination of the shear strength of the backfill body used to fill the subsidence is the basis for subsidence restoration and the stability analysis of materials. This study developed a shear strength calculation model for the backfill body by introducing adhesive friction theory into the shear strength analysis. A direct shear test was performed in the laboratory to verify the proposed method. Test results suggested that the shear strength calculation method based on adhesive friction theory can calculate the variation in the actual contact area between grains in the tested samples undergoing shearing and estimate the peak shear strength. The actual contact area was divided into two components, namely, adhesive contact area Arm and contact area reduction caused by shear displacement, which exhibited a maximum at Armax. The shear strength values calculated by this method were smaller than laboratory values, and their differences increased with the rock proportion in the backfill body. The differences between the theoretical and experimental values of shear strength increased with the rock grain size. The results of theoretical calculation, combined with the results of laboratory experiments, can provide support for the proper determination of shear strength of the backfill body.

Actual Contact Area in Pressure Couplings between Components of Different Hardness

2018 ◽  
Vol 38 (11) ◽  
pp. 830-833
Author(s):  
M. M. Matlin ◽  
V. A. Kazankin ◽  
E. N. Kazankina ◽  
A. I. Mozgunova
Keyword(s):  
Contact Area ◽  
Actual Contact ◽  
Actual Contact Area
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