Axisymmetry in Mechanical Engineering

Axisymmetry in Mechanical Engineering PDF Author: Emanuel Willert
Publisher:
ISBN: 9783036564906
Category : Symmetry
Languages : en
Pages : 0

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Book Description
The reprint is devoted to the phenomena associated with exact or approximate axial symmetry in different areas of technical physics and mechanical engineering science. How can the symmetry of the problem be used most efficiently for its analysis? Why is the symmetry broken or why is it still approximately retained? These and other questions are discussed based on systems from different fields of engineering.

Axisymmetry in Mechanical Engineering

Axisymmetry in Mechanical Engineering PDF Author: Emanuel Willert
Publisher:
ISBN: 9783036564906
Category : Symmetry
Languages : en
Pages : 0

Get Book Here

Book Description
The reprint is devoted to the phenomena associated with exact or approximate axial symmetry in different areas of technical physics and mechanical engineering science. How can the symmetry of the problem be used most efficiently for its analysis? Why is the symmetry broken or why is it still approximately retained? These and other questions are discussed based on systems from different fields of engineering.

Handbook of Contact Mechanics

Handbook of Contact Mechanics PDF Author: Valentin L. Popov
Publisher: Springer
ISBN: 3662587092
Category : Science
Languages : en
Pages : 357

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Book Description
This open access book contains a structured collection of the complete solutions of all essential axisymmetric contact problems. Based on a systematic distinction regarding the type of contact, the regime of friction and the contact geometry, a multitude of technically relevant contact problems from mechanical engineering, the automotive industry and medical engineering are discussed. In addition to contact problems between isotropic elastic and viscoelastic media, contact problems between transversal-isotropic elastic materials and functionally graded materials are addressed, too. The optimization of the latter is a focus of current research especially in the fields of actuator technology and biomechanics. The book takes into account adhesive effects which allow access to contact-mechanical questions about micro- and nano-electromechanical systems. Solutions of the contact problems include both the relationships between the macroscopic force, displacement and contact length, as well as the stress and displacement fields at the surface and, if appropriate, within the half-space medium. Solutions are always obtained with the simplest available method - usually with the method of dimensionality reduction (MDR) or approaches which use the solution of the non-adhesive normal contact problem to solve the respective contact problem.

Handbook of Contact Mechanics

Handbook of Contact Mechanics PDF Author: Valentin L. Popov
Publisher: Springer
ISBN: 9783662587089
Category : Science
Languages : en
Pages : 347

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Book Description
This open access book contains a structured collection of the complete solutions of all essential axisymmetric contact problems. Based on a systematic distinction regarding the type of contact, the regime of friction and the contact geometry, a multitude of technically relevant contact problems from mechanical engineering, the automotive industry and medical engineering are discussed. In addition to contact problems between isotropic elastic and viscoelastic media, contact problems between transversal-isotropic elastic materials and functionally graded materials are addressed, too. The optimization of the latter is a focus of current research especially in the fields of actuator technology and biomechanics. The book takes into account adhesive effects which allow access to contact-mechanical questions about micro- and nano-electromechanical systems. Solutions of the contact problems include both the relationships between the macroscopic force, displacement and contact length, as well as the stress and displacement fields at the surface and, if appropriate, within the half-space medium. Solutions are always obtained with the simplest available method - usually with the method of dimensionality reduction (MDR) or approaches which use the solution of the non-adhesive normal contact problem to solve the respective contact problem.

Some Axisymmetric Problems for Layered Elastic Media

Some Axisymmetric Problems for Layered Elastic Media PDF Author: American Society of Mechanical Engineers. Winter Annual Meeting
Publisher:
ISBN:
Category : Fracture mechanics
Languages : en
Pages : 0

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Book Description
In Part I, the multiple contact region solutions for an axisymmetric indenter were presented. The solution technique utilized integral transforms and singular integral equations. The emphasis there was the study of the conditions of contact as a function of the physical parameters of the indenter and the layered elastic half space. The method and results were similar to those for the analogous plane-strain problem that was studied in Shield and Bogy (1989). However, several differences in detail were required for the analysis of the axisymmetric geometry. In this Part II, the solution of Part I is used to study some related problems that have been considered previously in the literature for homogeneous half spaces. First we solve the problem of the axisymmetric annular indenter for the layered half space. Multiple contact region solutions are studied and the problem of an axisymmetric punch with internal pressure is solved for the layered half space and also for the special case of a layer with a traction-free lower surface. Finally, the problem of an annular crack in a homogeneous or layered structure is solved.

Stress Distributions in Thick Axisymmetric Engineering Components

Stress Distributions in Thick Axisymmetric Engineering Components PDF Author: Brian Kenny
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description


Mixing of Axisymmetric Coannular Flows

Mixing of Axisymmetric Coannular Flows PDF Author: Kevin E. Rehfus
Publisher:
ISBN:
Category : Mechanical engineering
Languages : en
Pages : 162

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Book Description


Finite Element Programs for Axisymmetric Problems in Engineering

Finite Element Programs for Axisymmetric Problems in Engineering PDF Author: C. T. F. Ross
Publisher:
ISBN:
Category : BASIC (Computer program language)
Languages : en
Pages : 308

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Book Description


Theories and Analyses of Beams and Axisymmetric Circular Plates

Theories and Analyses of Beams and Axisymmetric Circular Plates PDF Author: J N Reddy
Publisher: CRC Press
ISBN: 1000598462
Category : Technology & Engineering
Languages : en
Pages : 819

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Book Description
This comprehensive textbook compiles cutting-edge research on beams and circular plates, covering theories, analytical solutions, and numerical solutions of interest to students, researchers, and engineers working in industry. Detailing both classical and shear deformation theories, the book provides a complete study of beam and plate theories, their analytical (exact) solutions, variational solutions, and numerical solutions using the finite element method. Beams and plates are some of the most common structural elements used in many engineering structures. The book details both classical and advanced (i.e., shear deformation) theories, scaling in complexity to aid the reader in self-study, or to correspond with a taught course. It covers topics including equations of elasticity, equations of motion of the classical and first-order shear deformation theories, and analytical solutions for bending, buckling, and natural vibration. Additionally, it details static as well as transient response based on exact, the Navier, and variational solution approaches for beams and axisymmetric circular plates, and has dedicated chapters on linear and nonlinear finite element analysis of beams and circular plates. Theories and Analyses of Beams and Axisymmetric Circular Plates will be of interest to aerospace, civil, materials, and mechanical engineers, alongside students and researchers in solid and structural mechanics.

The Boundary Integral Equatio Method in Axisymmetric Stress Analysis Problems

The Boundary Integral Equatio Method in Axisymmetric Stress Analysis Problems PDF Author: A. A. Bakr
Publisher: Springer
ISBN:
Category : Science
Languages : en
Pages : 234

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Book Description
The Boundary Integral Equation (BIE) or the Boundary Element Method is now well established as an efficient and accurate numerical technique for engineering problems. This book presents the application of this technique to axisymmetric engineering problems, where the geometry and applied loads are symmetrical about an axis of rotation. Emphasis is placed on using isoparametric quadratic elements which exhibit excellent modelling capabilities. Efficient numerical integration schemes are also presented in detail. Unlike the Finite Element Method (FEM), the BIE adaptation to axisymmetric problems is not a straightforward modification of the two or three-dimensional formulations. Two approaches can be used; either a purely axisymmetric approach based on assuming a ring of load, or, alternatively, integrating the three-dimensional fundamental solution of a point load around the axis of rotational symmetry. Throughout this ~ook, both approaches are used and are shown to arrive at identi cal solutions. The book starts with axisymmetric potential problems and extends the formulation to elasticity, thermoelasticity, centrifugal and fracture mechanics problems. The accuracy of the formulation is demonstrated by solving several practical engineering problems and comparing the BIE solution to analytical or other numerical methods such as the FEM. This book provides a foundation for further research into axisymmetric prob lems, such as elastoplasticity, contact, time-dependent and creep prob lems.

Some Axisymmetric Problems for Layered Elastic Media

Some Axisymmetric Problems for Layered Elastic Media PDF Author: American Society of Mechanical Engineers. Winter Annual Meeting
Publisher:
ISBN:
Category : Contact mechanics
Languages : en
Pages : 0

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Book Description
The contact of a flat, simply-connected axisymmetric indenter with a layered elastic half space is examined. The problem is mathematically formulated using integral transforms to derive singular integral equations for the contact pressure. The solution of these equations is obtained by expansion in orthogonal polynomials. The solution predicts complete contact between the indenter and the surface of the layered half space only for a restricted range of the material and geometrical parameters. Outside of this range, solutions exist with multiple contact regions. A parameter space is divided into zones for single and multiple contact solutions and comparisons are made with the solutions for the analogous plane-strain problem.