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Study of the deformation of solids that touch each other
Contact mechanics is the study of the deformation of solids that touch each other at one or more points. A central distinction in contact mechanics is
Contact_mechanics
Study of the deformation of bodies in the presence of frictional effects
Contact mechanics is the study of the deformation of solids that touch each other at one or more points. This can be divided into compressive and adhesive
Frictional_contact_mechanics
Unevenness of surface, roughness, and ruggedness
structures has been correlated with the contact mechanics exhibited at an interface in terms of friction and contact stiffness. An understanding of the concept
Asperity_(materials_science)
German physicist (1857–1894)
contact theory in addition to the JKR theory. Both the DMT and the JKR theories form the basis of contact mechanics upon which all transition contact
Heinrich_Hertz
Portion of a tire that is in contact with the road
the equations of contact mechanics. It is mainly related to the stiffness of the material in terms of Young's modulus. The contact patch of a railroad
Contact_patch
Topics referred to by the same term
placed on the eye Contact sport, a sport in which players make contact with other players or objects Contact juggling Contact mechanics, the study of solid
Contact
Electrical resistance attributed to contacting interfaces
electrical contact resistance (ECR) and its variation at an interface relate primarily to surface structure and applied load (Contact mechanics). Surfaces
Contact_resistance
Physical quantity of rough surfaces
bonding for the industrial application of normal contact stiffness. Persson, B.N.J. (2006). "Contact mechanics for randomly rough surfaces". Surface Science
Normal_contact_stiffness
Branch of physics which studies the behavior of materials modeled as continuous media
Continuum mechanics is a branch of mechanics that deals with the deformation of and transmission of forces through materials modeled as a continuous medium
Continuum_mechanics
British engineer (1925–2015)
field of contact mechanics." His 1971 paper with Kevin Kendall and Alan D. Roberts forms the basis of modern theories of contact mechanics. He also made
Kenneth_L._Johnson
American mechanical engineer (born 1948)
1948) is an American mechanical engineer specializing in tribology, contact mechanics, dynamics, and microelectromechanical systems (MEMS). He is a distinguished
George_G._Adams_(engineer)
Formula relating load-force and hold-force on a line wound around a cylinder
generalization has been obtained by Konyukhov. Belt friction Frictional contact mechanics Torque amplifier, a device that exploits the capstan effect to amplify
Capstan_equation
nanomechanics are: nanomaterials, nanotribology (friction, wear and contact mechanics at the nanoscale), nanoelectromechanical systems (NEMS), and nanofluidics
Nanomechanics
Force resisting sliding motion
object. Contact dynamics Contact mechanics Factor of adhesion Friction Acoustics Frictionless plane Galling Lateral adhesion Non-smooth mechanics Normal
Friction
Branch of physics
Fluid mechanics is the branch of physics concerned with the mechanics of fluids (liquids, gases, and plasmas) and the forces on them. Originally applied
Fluid_mechanics
for example.) Contact mechanics Contact resistance Zhai, C.; Hanaor, D.; Proust, G.; Gan, Y. (2015). "Stress-Dependent Electrical Contact Resistance at
Contact_area
Mechanical constraint which prevents penetration between two bodies
In contact mechanics, the term unilateral contact, also called unilateral constraint, denotes a mechanical constraint which prevents penetration between
Unilateral_contact
Method of modelling contact between solids
The third medium contact (TMC) is an implicit formulation used in contact mechanics. Contacting bodies are embedded in a highly compliant medium (the third
Third_medium_contact_method
Study of the mechanics of biological systems
knees. In general, these processes are studied in the context of contact mechanics and tribology. Additional aspects of biotribology include analysis
Biomechanics
Relative deformation of a physical body
In mechanics, strain is defined as relative deformation, compared to a reference position configuration. Different equivalent choices may be made for
Strain_(mechanics)
Deformation mechanism
rolling bearings, to controlled rolling and sliding contact under lubricated conditions. Contact mechanics – Study of the deformation of solids that touch
Rolling_contact_fatigue
Concept in contact mechanics
is a particular case of contact mechanics often occurring in cases where a convex surface (male cylinder or sphere) contacts a concave surface (female
Bearing_pressure
Dutch engineer (1933–2006)
to the field of Contact mechanics. Particularly, in the case of railway systems, his results are used for solving wheel-rail contact problems and railway
Joost_Jacques_Kalker
Method of solving linear partial differential equations
of hypersingular boundary integral equations, see (Ang 2013) and contact mechanics. The integral equation may be regarded as an exact solution of the
Boundary_element_method
French-Swiss engineer and scientist
modeling of the mechanics of materials and structures. He is a full professor and the director of the Computational Solid Mechanics Laboratory at the
Jean-François_Molinari
Branch of mechanics concerned with solid materials and their behaviors
Solid mechanics (also known as mechanics of solids) is the branch of continuum mechanics that studies the behavior of solid materials, especially their
Solid_mechanics
Liquid, gas, or other continuously deforming and flowing material
angular momentum, conservation of energy. The study of fluids is fluid mechanics, which is subdivided into fluid dynamics and fluid statics depending on
Fluid
Measure of surface finish or texture
are very important. Surface structure plays a key role in governing contact mechanics, that is to say the mechanical behavior exhibited at an interface
Surface_roughness
Self-oscillation about an equilibrium that is usually unwanted
distortion of the wheel and rail at the regions of contact. These are the subject of frictional contact mechanics; an early presentation that includes these effects
Hunting_oscillation
Physical property when materials or objects return to original shape after deformation
In continuum mechanics and materials science, elasticity is the ability of a body to resist a distorting influence and to return to its original size
Elasticity_(physics)
Chinese-American tribologist
University. She is a tribologist whose research includes work on contact mechanics, lubrication, micromechanics, and solid-state batteries. Wang studied
Q._Jane_Wang
Study of forces and their effect on motion
classical mechanics, along with statics and kinematics. The fundamental principle of dynamics is linked to Newton's second law. In classical mechanics, rigid
Dynamics_(mechanics)
Science of rubbing surfaces
of corrosion and tribology in tribocorrosion and the contact mechanics of how surfaces in contact deform. Approximately 20% of the world's energy (2012)
Tribology
Physical quantity that expresses internal forces in a continuous material
In continuum mechanics, stress is a physical quantity that describes forces present during deformation. For example, an object being pulled apart, such
Stress_(mechanics)
Study of propagation of cracks in materials
mechanics is the field of mechanics concerned with the study of the propagation of cracks in materials. It uses methods of analytical solid mechanics
Fracture_mechanics
1997 film by Robert Zemeckis
Contact is a 1997 American science fiction drama film co-produced and directed by Robert Zemeckis, based on the 1985 novel by Carl Sagan. It stars Jodie
Contact_(1997_American_film)
State of matter
described using classical statistical mechanics. While the intermolecular force law technically derives from quantum mechanics, it is usually understood as a
Liquid
Buoyancy principle in fluid dynamics
displaces. Archimedes' principle is a law of physics fundamental to fluid mechanics. It was formulated by Archimedes of Syracuse. In On Floating Bodies, Archimedes
Archimedes'_principle
In geotechnical engineering and contact mechanics the term asperity is used to refer to individual features of unevenness (roughness) of the surface of
Asperity (geotechnical engineering)
Asperity_(geotechnical_engineering)
parameters, especially the Rk family of parameters. Johnson, K. L. (1985). Contact Mechanics. Cambridge University Press. p. 407. ISBN 0-521-34796-3. Stachowiak
Abbott-Firestone_curve
Principle relating to fluid dynamics
a variational description of free-surface flows using the Lagrangian mechanics. Bernoulli developed his principle from observations on liquids, and Bernoulli's
Bernoulli's_principle
Branch of mathematics
that are mostly empty space. Topology is of further significance in Contact mechanics where the dependence of stiffness and friction on the dimensionality
Topology
Principle in fluid mechanics
principle of transmission of fluid-pressure) is a principle in fluid mechanics that states that a pressure change at any point in a confined incompressible
Pascal's_law
Law of physics and chemistry
violated by general relativity on the cosmological scale. In quantum mechanics, Noether's theorem is known to apply to the expected value, making any
Conservation_of_energy
This article summarizes equations in the theory of fluid mechanics. Here t ^ {\displaystyle \mathbf {\hat {t}} \,\!} is a unit vector in the direction
List of equations in fluid mechanics
List_of_equations_in_fluid_mechanics
Law describing the pressure drop in an incompressible and Newtonian fluid
Richard (1993). "The History of Poiseuille's Law". Annual Review of Fluid Mechanics. 25: 1–19. Bibcode:1993AnRFM..25....1S. doi:10.1146/annurev.fl.25.010193
Hagen–Poiseuille_equation
Tendency of a liquid surface to shrink to reduce surface area
molecules inside, which is a quantity small enough to require a quantum mechanics analysis. Because surface tension manifests itself in various effects
Surface_tension
Relation between gas pressure and volume
Solid mechanics Deformation Elasticity linear Plasticity Hooke's law Stress Strain Finite strain Infinitesimal strain Compatibility Bending Contact mechanics
Boyle's_law
Molecular property
Bacterial adhesin Capillary action Cell adhesion Contact mechanics Electroadhesion Fracture mechanics Galling Insect adhesion Meniscus Mucoadhesion Pressure-sensitive
Adhesion
Branch of fluid mechanics that studies fluids at rest
Hydrostatics is the branch of fluid mechanics that studies fluids at hydrostatic equilibrium and "the pressure in a fluid or exerted by a fluid on an
Hydrostatics
German materials physicist
Concepts and Modeling group known for his development of theories of contact mechanics on fractal surfaces and of reinforcement by fillers of elastomers
Manfred_Klüppel
Ability of a liquid to flow in narrow spaces
equation – Describing pressure difference over an interface in fluid mechanics See: Manuscripts of Léonardo de Vinci (Paris), vol. N, folios 11, 67,
Capillary_action
Force exerted on an object by a body with which it is in contact, and vice versa
In mechanics, the normal force F N {\displaystyle F_{N}} is the component of a contact force that is perpendicular to the surface that an object contacts
Normal_force
British scientist
Kendall and Kenneth L. Johnson forms the basis of modern theories of contact mechanics. In 1974, Roberts was recruited to the Applied Physics Group at the
Alan_D._Roberts
Scientific law that a closed system's mass remains constant
of mass conservation is widely used in many fields such as chemistry, mechanics, and fluid dynamics. Historically, mass conservation in chemical reactions
Conservation_of_mass
Topics referred to by the same term
Potter series Johnson-Kendall-Roberts model, a mathematical model in contact mechanics Jones Knowles Ritchie, a British design agency Junker (Jkr.), a German
JKR
Motion of multibody systems
com/gabyx/Woodpecker. Multibody dynamics Contact mechanics: Applications with unilateral contacts and friction. Static applications (contact between deformable bodies)
Contact_dynamics
Wear or damage on loaded surfaces
down the harder surface. Contact mechanics – Study of the deformation of solids that touch each other Motion-triggered contact insufficiency – Wear or
Fretting
Mechanical power transmission by friction between components
in case of overload. Contact mechanics – Study of the deformation of solids that touch each other Frictional contact mechanics – Study of the deformation
Friction_drive
Deflection of a spinning object moving through a fluid
(2014). Fluid Mechanics of Cricket Ball Swing. 19th Australasian Fluid Mechanics Conference. Vol. 1. Melbourne: Australasian Fluid Mechanics Society. pp
Magnus_effect
Equation describing the transport of some quantity
1—and that it moves by a continuous motion (no teleporting). Quantum mechanics is another domain where there is a continuity equation related to conservation
Continuity_equation
Electrical circuit component
(2015). "Stress-Dependent Electrical Contact Resistance at Fractal Rough Surfaces" (PDF). Journal of Engineering Mechanics. 143 (3): B4015001. doi:10.1061/(ASCE)EM
Electrical_contact
Resistance of a fluid to shear deformation
In continuum mechanics, viscosity is a property of a fluid that quantifies the resistance force acting on fluids when there is relative motion between
Viscosity
In physics, two bodies contacting each other
Ballistic pendulum Coefficient of restitution Collision detection Contact mechanics Elastic collision Friction Impact crater Impact event Inelastic collision
Collision
Hardness test
ISSN 0022-5096. Fischer-Cripps, Anthony C. (2007). Introduction to contact mechanics (2nd ed.). New York: Springer. pp. 212–213. ISBN 9780387681887. OCLC 187014877
Vickers_hardness_test
State of matter
Solid mechanics Deformation Elasticity linear Plasticity Hooke's law Stress Strain Finite strain Infinitesimal strain Compatibility Bending Contact mechanics
Plasma_(physics)
Series of hard pressure rollers
thickness of electrode material coatings on current collector foils. Contact mechanics Glassine Paper mill Roller mill Rolling (metalworking) Two roll rubber
Calender
State of matter
Chemistry LibreTexts. 2016-06-27. Retrieved 2025-03-19. "Mechanics of Materials: Strain » Mechanics of Slender Structures | Boston University". www.bu.edu
Solid
Type of fluid
In physical chemistry and fluid mechanics, a non-Newtonian fluid is a fluid that does not follow Newton's law of viscosity; that is, it has variable viscosity
Non-Newtonian_fluid
Branch of geometry
even-dimensional manifolds. Both contact and symplectic geometry are motivated by the mathematical formalism of classical mechanics, where one can consider either
Contact_geometry
Failure Theory in continuum mechanics
In continuum mechanics, the maximum distortion energy criterion (also von Mises yield criterion) states that yielding of a ductile material begins when
Von_Mises_yield_criterion
Relationship between pressure and temperature of a gas at constant volume
Solid mechanics Deformation Elasticity linear Plasticity Hooke's law Stress Strain Finite strain Infinitesimal strain Compatibility Bending Contact mechanics
Gay-Lussac's_law
Material testing procedure that makes a very small mark in a surface
E_{\text{s}}} of the test specimen through the following relationship from contact mechanics: 1 / E r = ( 1 − ν i 2 ) / E i + ( 1 − ν s 2 ) / E s . {\displaystyle
Nanoindentation
Relationship between volume and temperature of a gas at constant pressure
Solid mechanics Deformation Elasticity linear Plasticity Hooke's law Stress Strain Finite strain Infinitesimal strain Compatibility Bending Contact mechanics
Charles's_law
Set of laboratory techniques for separation of mixtures
materials in an inert atmosphere or a vacuum. The sample is put into direct contact with a platinum wire, or placed in a quartz sample tube, and rapidly heated
Chromatography
Upward force that opposes the weight of an object immersed in fluid
each in contact, the pressures and resultant forces on the sides or parts thereof in contact are balanced and may be disregarded, as the contact surfaces
Buoyancy
Speculative historical theories
Pre-Columbian transoceanic contact theories, many of which are speculative, propose that visits to the Americas, interactions with the Indigenous peoples
Pre-Columbian transoceanic contact theories
Pre-Columbian_transoceanic_contact_theories
Force distributed over an area
pressure – Term in fluid mechanics Timeline of temperature and pressure measurement technology Torricelli's law – Theorem in fluid mechanics Vacuum pump – Equipment
Pressure
Something that has mass and volume
distance", effectively repudiated Descartes's mechanics, in which interactions happened exclusively by contact. Though Newton's gravity would seem to be a
Matter
Numerical simulations of physical problems via computers
computational aerodynamics, computational solid mechanics and computational contact mechanics. Computational electrodynamics is the process of modeling the interaction
Computational_physics
Equation in fluid dynamics
dimensionless friction factor f. The complexity of f, dependent on the mechanics of the boundary layer and the flow regime (laminar, transitional, or turbulent)
Darcy–Weisbach_equation
Type of fluid
ISBN 978-0-521-66396-0. Kundu, P.; Cohen, I. Fluid Mechanics. p. (page needed). Kirby, B. J. (2010). Micro- and Nanoscale Fluid Mechanics: Transport in Microfluidic Devices
Newtonian_fluid
Concept in fluid dynamics
implies that the position of the contact line does not move, which is not observed in reality. Analysis of a moving contact line with the no slip condition
No-slip_condition
Italian mathematician
compatible discretization of PDEs, linear and non linear elasticity, contact mechanics, integral equations on non-smooth manifolds, functional theory for
Annalisa_Buffa
Transformation of a body from a reference configuration to a current configuration
In physics and continuum mechanics, deformation is the change in the shape or size of an object. It has dimension of length with SI unit of metre (m)
Deformation_(physics)
Motion of objects in sliding contact
with earthquakes being generated during the periods of rapid slip. Contact mechanics – Study of the deformation of solids that touch each other Friction –
Stick–slip_phenomenon
Railway relying on adhesion to move trains
creepage), or more advanced theories can be used from frictional contact mechanics. The forces which result in directional stability, propulsion and
Adhesion_railway
Roman armour
Archived from the original on July 22, 2022. Stephen, Jeremy (2020). Contact Mechanics of Fish Scale Inspired Exoskeletal Components on a Nonlinear Elastic
Lorica_plumata
Type of non reactive adhesive
the glass-transition temperature, "T"g. Adhesive remover Blu-Tack Contact mechanics Dynamic mechanical analysis Glue dots Gaffer tape List of adhesive
Pressure-sensitive_adhesive
cantilever dynamic model - calculation of the k* (contact stiffness); and Hertz contact model - contact mechanics - calculation of the reduced elastic modulus
Atomic force acoustic microscopy
Atomic_force_acoustic_microscopy
Study of the flow of matter, primarily in a fluid state
described by classical fluid mechanics or elasticity. In practice, rheology is principally concerned with extending continuum mechanics to characterize the flow
Rheology
Process of a gas escaping through a small hole
Solid mechanics Deformation Elasticity linear Plasticity Hooke's law Stress Strain Finite strain Infinitesimal strain Compatibility Bending Contact mechanics
Effusion
Model of electrically conducting fluids
Solid mechanics Deformation Elasticity linear Plasticity Hooke's law Stress Strain Finite strain Infinitesimal strain Compatibility Bending Contact mechanics
Magnetohydrodynamics
to prove there are no ghosts at work by explaining how frictional contact mechanics caused a cold glass to slide spontaneously across a counter, finishing
Richard_Stribeck
Influence that can change motion of an object
to resist other forces, or to cause changes of pressure in a fluid. In mechanics, force makes ideas like pushing or pulling mathematically precise. Because
Force
Friction forces between a belt and a surface
failure and injury. Capstan equation Frictional contact mechanics Attaway, Stephen W. (1999). The Mechanics of Friction in Rope Rescue (PDF). International
Belt_friction
perceived ball contact, the hips continue to rotate along with continue extension towards hyperextension of the elbow. Baseball hitting mechanics are far more
Hitting_mechanics
American condensed matter physicist (1955–2020)
fracture and adhesion, with a particular focus on nanotribology, contact mechanics, and polymers. He was a professor in the department of physics and
Mark_O._Robbins
Force between two objects that are in physical contact
Non-contact force Body force Surface force Action at a distance (physics) Spring force Plesha, Gray, and Costanzo (2010). Engineering Mechanics – Statics
Contact_force
Mathematical model for describing material deformation under stress
In continuum mechanics, the finite strain theory—also called large strain theory, or large deformation theory—deals with deformations in which strains
Finite_strain_theory
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