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Related Concept Videos

Dry Friction01:30

Dry Friction

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Dry friction occurs between two solid surfaces in contact as they attempt to move relative to one another. In daily life, dry friction is encountered in various forms, such as when walking on the ground, sliding an object across a table, or rubbing hands together. Despite its ubiquity, the underlying mechanisms behind dry friction are not readily visible.
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Frictional Force01:07

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When a body is in motion, it encounters resistance because the body interacts with its surroundings. This resistance is known as friction, a common yet complex force whose behavior is still not completely understood. Friction opposes relative motion between systems in contact, but also allows us to move. Friction arises in part due to the roughness of surfaces in contact. For one object to move along a surface, it must rise to where the peaks of the surface can skip along the bottom of the...
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When a solid is dipped inside a liquid, the liquid surface becomes curved near the contact. For some solid–liquid interfaces, the liquid is pulled up along the solid, while for others, the liquid surface is convex or depressed near the solid surface. This phenomenon can be explained using the concept of cohesive and adhesive forces.
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Characteristics of Dry Friction01:21

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Dry friction occurs when two solid surfaces slide against each other without any lubrication or fluid present. It causes resistance when pushing objects along a surface, like a gardener pushing a wheelbarrow. The force applied to move the cart causes dry friction between the wheel and the ground.
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Rolling Resistance01:21

Rolling Resistance

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When a solid cylinder rolls steadily on a rigid surface, the normal force applied by the surface on the cylinder is perpendicular to the tangent at the contact point. However, since no materials are entirely rigid, the surface's reaction to the cylinder involves a range of normal pressures.
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Abrasion Resistance of Concrete01:23

Abrasion Resistance of Concrete

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Abrasion resistance is an essential characteristic of concrete that determines its durability and longevity under various wear conditions. Concrete surfaces are vulnerable to different types of abrasion. For instance, surfaces may wear down due to the constant movement of vehicles or be eroded by solids carried in water, as seen in concrete canal linings. Specific tests are conducted to measure the abrasion resistance of concrete.
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Modeling Adhesive Wear in Asperity and Rough Surface Contacts: A Review.

Haibo Zhang1, Roman Goltsberg2, Izhak Etsion2

  • 1School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China.

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|October 14, 2022
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Summary

This review summarizes numerical models for adhesive wear, a fundamental tribology topic. It covers classic and modern techniques, highlighting their strengths and weaknesses for future research.

Keywords:
Archard lawRabinowicz criterionadhesive wearasperity contactfinite element methodnumerical modelswear mechanisms

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Area of Science:

  • Tribology
  • Materials Science
  • Mechanical Engineering

Background:

  • Adhesive wear is a fundamental and often unavoidable wear mechanism.
  • Numerical simulations are crucial for understanding complex wear phenomena.
  • Classic models by Archard and Rabinowicz laid the groundwork for wear research.

Purpose of the Study:

  • To comprehensively review numerical models for adhesive wear.
  • To summarize techniques based on physical parameters.
  • To identify advantages, deficiencies, and future directions in adhesive wear modeling.

Main Methods:

  • Review of classic wear modeling literature (Archard, Rabinowicz).
  • Comprehensive summary of adhesive wear numerical models and techniques.
  • Categorization of models by method type and presentation of key findings.

Main Results:

  • Adhesive wear modeling has advanced significantly through numerical techniques.
  • Models exist for both asperity-level and rough surface wear mechanisms.
  • Different numerical approaches offer varying levels of accuracy and applicability.

Conclusions:

  • Numerical modeling is essential for advancing the understanding of adhesive wear.
  • Current models have limitations regarding realistic geometries and material properties.
  • Future research should focus on incorporating more complex physical parameters for improved accuracy.