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1st Edition

Finite Element Simulations Using ANSYS



ISBN 9781138111837
Published May 22, 2017 by CRC Press
416 Pages 742 B/W Illustrations

 
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Book Description

The complexity of modern-day problems in mechanical engineering makes relying on pure theory or pure experiment impractical at best and time-consuming and unwieldy at worst. And for a large class of engineering problems writing computer codes from scratch is seldom found in practice. Use of reputable, trustworthy software can save time, effort, and resources while still providing reliable results. Finite Elements Simulations Using ANSYS focuses on the application of this design software in solving practical engineering problems.

The book presents fundamental knowledge of numerical simulation using ANSYS. It covers all disciplines in mechanical engineering: structure, solid mechanics, vibration, heat transfer, and fluid dynamics, with adequate background material to explain the physics behind the computations. The author treats each physical phenomenon independently, enabling readers to single out subjects or related chapters and study them as self-contained units. Because a finite element solution is greatly affected by the quality of the mesh, a separate chapter on mesh generation is included as a simple meshing guide, emphasizing the basics. Each chapter contains a number of pictorially guided problems with appropriate screenshots that provide a step-by-step, easy-to-follow technical demonstration. The book includes end-of-chapter problems, several practical, open-ended case studies, and a number of complete tutorials on using ANSYS to resolve the issues engineers tackle on a regular basis.

Instructors can liberally select appropriate chapters to be covered depending on the objectives of the course. The author first explains multiphysics analyses, such as structure-thermal or fluid-thermal analyses, in terms of theory, then derives the equations governing the physical phenomena and presents modeling techniques. Many of the sample problems, questions, and solved examples were used in CAD courses in many universities around the world. They cover structural analysis, solid mechanics and vibration, steady-state and transient heat-transfer analysis, fluid dynamics, multiphysics simulations, and modeling and meshing. Written and organized so that it can easily be used for self-study, this book guides readers through the basic modeling requirements to the correct and physically meaningful numerical result.

Table of Contents

Introduction
Finite Element Method
Element Types
Symmetries in Models
Introduction to ANSYS
Trusses
Development of Bar Elements
Analyzing a Bar-Truss Structure
Development of Horizontal Beam Elements
Analyzing a Horizontal Beam Structure
Beam-Truss Structure Under a Transient Loading
Problems
Solid Mechanics and Vibration
Development of Plane Stress–Strain Elements
Stress Concentration of a Plate with Hole
Displacement Analysis of a Vessel
Three-Dimensional Stress Analyses of I-Beam
Contact Element Analysis of Two Beams
Vibration Analysis
Modal Vibration for a Plate with Holes
Harmonic Vibration for a Plate with Holes
Higher-Order Elements
Problems
Heat Transfer
Introduction to Heat Conduction
Finite Element Method for Heat Transfer
Thermal Analysis of Fin and Chip
Unsteady Thermal Analyses of Fin
Phase Change Heat Transfer
Problems
Fluid Mechanics
Governing Equations for Fluid Mechanics
Finite Element for Fluid Mechanics
Flow Development in a Channel
Flow around a Tube in a Channel
Problems
Multiphysics
Introduction
Thermal and Structural Analysis of a Thermocouple
Chips Cooling in a Forced Convection Domain
Natural Convection Flow in a Square Enclosure
Oscillations of a Square-Heated Cylinder in a Channel
Problems
Meshing Guide
Mesh Refinement
Element Distortion
Mapped Mesh
Mapped Mesh with ANSYS
Problems
Bibliography
Index

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