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A Boundary Element Method for Two-Dimensional Contact Problems (Lecture Notes in Engineering): 51 - Brossura
Sinossi
This book is an attempt to demonstrate the power and versatility of Boundary Element Method (BEM) in solving the complicated contact problem. The basic concepts of contact are explained followed by the derivation of analytical and numerical boundary element formulation for two-dimensional elastic contact problems. The formulation is intended for a general case of contact, so that all different geometries in contact with different frictional conditions can be analyzed. The temperature changes and body forces are also included in the formulations.
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Contenuti
Content.- 1. Introduction.- References.- 2. The Contact Problem.- 2.1 Analytical Treatment of Contact.- 2.2 Numerical Treatment of Contact.- 2.3 General Description of Contact Problems.- 2.3.1 Frictionless contact.- 2.3.2 Frictional contact.- 2.3.3 Advancing, Stationary & receding contact.- 2.3.4 Hertzian contact.- 2.4 Interface Boundary Conditions.- 2.4.1 Separation mode.- 2.4.2 Contact mode.- 2.5 Load Increment Method.- 2.5.1 From separation to contact condition.- 2.5.2 From contact to separation condition.- 2.5.3 From sticking condition to sliding condition.- 2.5.4 From sliding condition to sticking condition.- References.- 3. Formulation of the Boundary Element Method.- 3.1 Intorduction.- 3.2 Governing Equation of Elastostatics.- 3.3 Derivation of the Integral Equation.- 3.3.1 Galerkin vector.- 3.3.2 Love’s strain function.- 3.3.3 Kelvin’s problem.- 3.3.4 Betti’s recriprocal theorem.- 3.4 Integral Equations for Dispacements and Stresses at Interior Points.- 3.5 The Boundary Integral Equation.- 3.6 The Boundary Integral Equation for Contact Problems.- 3.7 Final Remarks.- References.- 4. The Numerical Solution to Boundary Element Method.- 4.1 Review of Various Numerical Formulations.- 4.2 Parametric Representation of Geometry and Functions.- 4.3 Numerical Formulation of Boundary Integral Equations.- 4.4 Evaluation of Equation Coefficients.- 4.5 Formation of Coefficient Matrix of the Equations.- 4.6 Treatment of Boundary Conditions.- 4.7 Treatment of Contact Conditions.- 4.7.1 Frictional contact.- 4.7.2 Frictionless contact.- 4.8 Solution to the System of Equations.- 4.9 Stresses at the Boundary.- 4.10 Stresses and Displacements at Interior Points.- 4.11 Calculation of Forces on Every Boundary Element.- 4.12 Modified Load Increment Factor for Parabolic Elements.- 4.13 Final Remarks.- References.- 5. Application of the Bem to Hertzian Type Contact Problems.- 5.1 Two-dimensional Hertzian Contact.- 5.2 Two-dimensional Hertzian Modelling-Contact of Rollers.- 5.2.1 Contact woth different material properties.- 5.2.2 Subsurface stresses.- 5.2.3 Load deflection relationship.- 5.3 Determination of the External Load.- References.- 6. Application of Bem to Non-Hertzian Contact Problems.- 6.1 Introduction.- 6.2 Elastic Punch on an Elastic Foundation.- 6.3 Connecting Rod.- 6.4 Turbine Blade Root Fastenings.- 6.5 A Circular Inclusion in an Infinite Plate.- References.- 7. Application of Bem to Thermo-Elastic Body-Force Contact Problems.- 7.1 Governing Equations.- 7.2 Analytical Treatment.- 7.3 Numerical Treatment.- 7.4 Body-Force Contact Examples.- 7.4.1 Cradling contact problem.- 7.4.2 Gravitational force effect.- 7.4.3 Rotating disk.- 7.5 Thermo-Elastic Contact Examples.- 7.5.1 Contact of two blocks.- 7.5.2 Roller between two surfaces.- 7.5.3 Connecting rod.- References.
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Book by Karami Ghodratollah
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A Boundary element method for two-dimensional contact proble
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Sprimger-Verlag, BERLINO, 1989
ISBN 10: 3540515623
ISBN 13: 9783540515623
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Condizione: BUONO USATO. Lecture Notes in Engineering INGLESE Numero "51" della collana "Lecture notes in engineering"; lingua inglese. Brossura in buono stato. Pagine godibili anche se minimamente ingiallite dal tempo ai tagli. Numero pagine. Codice articolo NCS0251
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Lecture Notes in Engineering : A Boundary Element Method for Twodimensional Contact Problems
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Lecture Notes in Engineering
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Taschenbuch. Condizione: Neu. This item is printed on demand - it takes 3-4 days longer - Neuware -The Boundary Element Method (BEM) has been established as a powerful numerical tool for the analysis of continua in recent years. The method is based on an attempt to transfer the governing differential equations into integral equations over the boundary. Thus, the discretization scheme or the intro duction of any approximations must be done over the boundary. This book presents a BEM for two-dimensional elastic, thermo -elastic and body-force contact problems. The formulation is implemented for the general case of contact with various fric tional conditions. The analysis is limited to linear elasto statics and small strain theory. Following a review of the basic nature of contact problems, the analytical basis of the direct formulation of the BEM method is described. The numerical implementation employs three-noded isoparametric line elements for the representa tion of the boundary of the bodies in contact. Opposite nodal points in equi-Iength element-pairs are defined on the two surfaces in the area which is expected to come into contact under an increasing load. The use of appropriate contact IV conditions enables the integral equations for the two bodies to be coupled together. To find the proper contact dimensions and the contact load a combined incremental and iterative approach is utilised. With this approach, the loads are applied progressively, and the sliding and adhering portion of the contact region is established for each load increment using an iterative procedure. A coulomb type of friction law is assumed. 260 pp. Englisch. Codice articolo 9783540515623
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Lecture Notes in Engineering
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Kartoniert / Broschiert. Condizione: New. The Boundary Element Method (BEM) has been established as a powerful numerical tool for the analysis of continua in recent years. The method is based on an attempt to transfer the governing differential equations into integral equations over the boundary. T. Codice articolo 4892027
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Taschenbuch. Condizione: Neu. Druck auf Anfrage Neuware - Printed after ordering - The Boundary Element Method (BEM) has been established as a powerful numerical tool for the analysis of continua in recent years. The method is based on an attempt to transfer the governing differential equations into integral equations over the boundary. Thus, the discretization scheme or the intro duction of any approximations must be done over the boundary. This book presents a BEM for two-dimensional elastic, thermo -elastic and body-force contact problems. The formulation is implemented for the general case of contact with various fric tional conditions. The analysis is limited to linear elasto statics and small strain theory. Following a review of the basic nature of contact problems, the analytical basis of the direct formulation of the BEM method is described. The numerical implementation employs three-noded isoparametric line elements for the representa tion of the boundary of the bodies in contact. Opposite nodal points in equi-Iength element-pairs are defined on the two surfaces in the area which is expected to come into contact under an increasing load. The use of appropriate contact IV conditions enables the integral equations for the two bodies to be coupled together. To find the proper contact dimensions and the contact load a combined incremental and iterative approach is utilised. With this approach, the loads are applied progressively, and the sliding and adhering portion of the contact region is established for each load increment using an iterative procedure. A coulomb type of friction law is assumed. Codice articolo 9783540515623
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Lecture Notes in Engineering
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Taschenbuch. Condizione: Neu. This item is printed on demand - Print on Demand Titel. Neuware -The Boundary Element Method (BEM) has been established as a powerful numerical tool for the analysis of continua in recent years. The method is based on an attempt to transfer the governing differential equations into integral equations over the boundary. Thus, the discretization scheme or the intro duction of any approximations must be done over the boundary. This book presents a BEM for two-dimensional elastic, thermo -elastic and body-force contact problems. The formulation is implemented for the general case of contact with various fric tional conditions. The analysis is limited to linear elasto statics and small strain theory. Following a review of the basic nature of contact problems, the analytical basis of the direct formulation of the BEM method is described. The numerical implementation employs three-noded isoparametric line elements for the representa tion of the boundary of the bodies in contact. Opposite nodal points in equi-Iength element-pairs are defined on the two surfaces in the area which is expected to come into contact under an increasing load. The use of appropriate contact IV conditions enables the integral equations for the two bodies to be coupled together. To find the proper contact dimensions and the contact load a combined incremental and iterative approach is utilised. With this approach, the loads are applied progressively, and the sliding and adhering portion of the contact region is established for each load increment using an iterative procedure. A coulomb type of friction law is assumed.Springer-Verlag KG, Sachsenplatz 4-6, 1201 Wien 260 pp. Englisch. Codice articolo 9783540515623
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