The Mathematics of Thermal Modeling: An Introduction to the Theory of Laser Material Processing - Rilegato

Dowden, John Michael

Rilegato

ISBN 10: 1584882301 ISBN 13: 9781584882305

Casa editrice: Chapman and Hall/CRC, 2001

Riassunto

The use of lasers for various applications in materials processing has grown rapidly in recent years. Lasers are by nature particularly well suited to automation, but to ensure repeatability and reliability, the engineers employing them must not simply rely on numerical analysis software. They must have a firm grasp on the physical principles involved.

Mathematics of Thermal Modelling: An Introduction to the Theory of Laser Material Processing introduces the mathematics needed to formulate and exploit the physical principles important to modelling various aspects of laser material processing. The author shows how to gain insight by constructing and analyzing simple models. He demonstrates how to extract qualitative information from the models, how the underlying principles can be extended to more complex modelling, and how these principles can be applied to processes such as laser welding, surface treatment, drilling, and cutting.

Written at a level accessible to graduate students, this book shows that simple mathematical investigation-- based primarily on analytical methods backed by relatively simple numerical methods--can greatly illuminate the processes being studied. Regardless of the stage of your career development, if you are confronting the modelling of thermal process in this field for the first time, Mathematics of Thermal Modelling will build the foundation you need.

Su questo libro

Contenuti:

THERMAL MODELING
Introduction
Dimensions and Dimensionless Numbers
Two Examples
PHYSICAL PRINCIPLES
Governing Equations
Boundary Conditions
Summary of Equations and Conditions
THE TEMPERATURE IN BLOCKS AND PLATES
The Temperature Distribution
The Point Source Solution
The Temperature Distribution in Plates
Fresnel Absorption
The Line Source Solution
TIME DEPENDENT SOLUTIONS IN BLOCKS
Time Dependent One-Dimensional Solutions
Surface Heating from Cold
Time-Dependent Point and Line Sources
The Thermal History of a Material Element
MOVING BOUNDARY PROBLEMS
Stefan Problems
Neumann's Problem
SIMPLE MODELS OF LASER KEYHOLE WELDING
Laser Keyhole Welding
Point and Line Source Models
The Relation between Power Absorbed and Keyhole Radius
The Liquid/Vapor Interface
The Keyhole
Numerical Examples
THE FLUID REGIONS IN KEYHOLE WELDING
Flow in the Weld Pool
Interaction of Motion in the Weld Pool with the Keyhole
Laser Heating of the Vapor in the Keyhole
THERMO-ELASTIC PROBLEMS
Thermal Expansion
The Scabbing of Concrete
Two-Dimensional Models
Stresses in a Metal Work Piece
Conclusion
APPENDIX 1: VALUES OF MATERIAL PROPERTIES
APPENDIX 2: ELASTIC GREEN'S FUNCTIONS FOR A SEMI-INFINITE DOMAIN
BIBLIOGRAPHY
INDEX

Product Description:

Book by Dowden John Michael

Su questa edizione

• Editore: Chapman and Hall/CRC
• Data di pubblicazione: 2001
• ISBN 10: 1584882301
• ISBN 13: 9781584882305
• Rilegatura: Copertina rigida
• Numero edizione: 1
• Numero di pagine: 304