Contact MechanicsThis treatise is concerned with the stresses and deformation of solid bodies in contact with each other, along curved surfaces which touch initially at a point or along a line. Examples are a railway wheel and rail, or a pair of gear wheel teeth. Professor Johnson first reviews the development of the theory of contact stresses since the problem was originally addressed by H. Hertz in 1882. Next he discusses the influence of friction and the topographical roughness of surfaces, and this is incorporated into the theory of contact mechanics. An important feature is the treatment of bodies which deform plastically or viscoelastically. In addition to stationary contact, an appreciable section of the book is concerned with bodies which are in sliding or rolling contact, or which collide. |
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analysis andthe applied approximately asperities atthe axisymmetric bodies bythe circular coefficient coefficient of restitution compression constant contact area contact patch contact pressure contact problems contact stresses creep curve cylinders deflexion edge elastic deformation elastic halfspace elastic hysteresis elasticplastic elliptical expressed force Q frictionless given by equation givenby Hertz theory impact indentation inFig integral integral equation interface inthe Journal load lubrication material maximum Mechanics microslip nonconforming nondimensional normal displacement normal force noslip ofthe Pacejka plane plane strain plastic deformation pressure distribution profilometer punch radial radius ratio residual stresses rigid rollers rolling contact rolling resistance shear stress shown in Fig sliding slip slipline field solid solution sphere strain stress components strip surface displacements tangential displacement tangential force tangential traction temperature thatthe thecontact thesurface tothe twodimensional variation velocity viscoelastic wave wedge wedge face withthe yield zaxis zero zone