Author(s)/Editor(s): Anthony C. Fischer-Cripps | Size: 4 MB | Format:PDF | Quality:Original preprint | Publisher: Springer US | Year: 2007 | pages: 226 | ISBN: 978-0-387-68187-0
Introduction to Contact Mechanics, Second Edition is a gentle introduction to the mechanics of solid bodies in contact for graduate students, post doctoral individuals, and the beginning researcher.
This second edition maintains the introductory character of the first with a focus on materials science as distinct from straight solid mechanics theory. Every chapter has been updated to make the book easier to read and more informative. A new chapter on depth sensing indentation has been added, and the contents of the other chapters have been completely overhauled with added figures, formulae and explanations.
The author begins with an introduction to the mechanical properties of materials, general fracture mechanics and the fracture of brittle solids. This is followed by a detailed description of indentation stress fields for both elastic and elastic-plastic contact. The discussion then turns to the formation of Hertzian cone cracks in brittle materials, subsurface damage in ductile materials, and the meaning of hardness. The author concludes with an overview of practical methods of indentation.
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Despite the continued rapid advance in computing speed and memory the increase in the complexity of models used by engineers persists in outpacing them. Even where there is access to the latest hardware, simulations are often extremely computationally intensive and time-consuming when full-blown models are under consideration.
The need to reduce the computational cost involved when dealing with high-order/many-degree-of-freedom models can be offset by adroit computation. In this light, model-reduction methods have become a major goal of simulation and modeling research. Model reduction can also ameliorate problems in the correlation of widely used finite-element analyses and test analysis models produced by excessive system complexity.
Model Order Reduction Techniques explains and compares such methods focusing mainly on recent work in dynamic condensation techniques:
- Compares the effectiveness of static, exact, dynamic, SEREP and iterative-dynamic condensation techniques in producing valid reduced-order models;
- Shows how frequency shifting and the number of degrees of freedom affect the desirability and accuracy of using dynamic condensation;
- Answers the challenges involved in dealing with undamped and non-classically damped models;
- Requires little more than first-engineering-degree mathematics and highlights important points with instructive examples.
Academics working in research on structural dynamics, MEMS, vibration, finite elements and other computational methods in mechanical, aerospace and structural engineering will find Model Order Reduction Techniques of great interest while it is also an excellent resource for researchers working on commercial finite-element-related software such as ANSYS and Nastran.
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This handbook is a collection of elasticity solutions. Many of the results presented here cannot be found in textbooks and are available in scientific articles only. Some of them were obtained in the closed form quite recently. The solutions have been thoroughly checked and reduced to a "user friendly" form. Every effort has been made to keep the book free of misprints. The theory of elasticity is a mature field and a large number of solutions are available. We had to make choices in selecting material for this book. The emphasis is made on results relevant to general solid mechanics and materials science applications. Solutions related to structural mechanics (beams, plates, shells, etc.) are left out. The content is limited to the linear elasticity.
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CSiXRevit is a plugin for Autodesk Revit® that enables bi-directional data transfer to CSI Software products: SAP2000®, ETABS® and SAFE®.
CSiXRevit supports four (4) main workflows of data transfer with Autodesk Revit®:
Exporting from Revit® to create a new CSI Software model.
Exporting from Revit® to update an existing CSI Software model.
Importing from CSI Software to create a new Revit® Model.
Importing from CSI Software to update an existing Revit® Model.
Users have full control over what model data gets transferred and how that data gets mapped to equivalent objects in either software.
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Courtois P. Industrial research on connections for precast and in situ concrete.
American Concrete Institute SP-22, Paper SP 22-10. Farmington Hills (MI):
American Concrete Institute; 1969. p. 123–138
ATC-13 Earthquake Damage Evaluation Data for California
Author(s):
ATC
Edition:
1
Publish Date:
1985
Published By:
FEMA
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The construction industry is bombarded with ever-changing building materials—components of which are more and more difficult, if not impossible, to identify. Building material emissions have been implicated as a major source of indoor air pollution, and toxic gases, often unidentified, are generated in building fires.
Building Materials: Product Emission and Combustion Health Hazards undertakes the task of identifying building materials emission and combustion health hazards. This practical guide introduces the complex world of polymers commonly used in building materials along with plasticizers and additives that are not regulated by OSHA. It also explores the topic of building materials as they relate to function and their emissions/combustion products along with thermal decomposition and combustion products as they relate to fire first responders.
Engaging environmental professionals, construction management firms, architects, first respondents, and students, this valuable reference delivers a comprehensive spectrum of knowledge needed to face the challenges of managing building materials in the twenty-first century. Awareness is the first line of defense!
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This book introduces readers to modern computational mechanics based on the finite element method. It helps students succeed in mechanics courses by showing them how to apply the fundamental knowledge they gained in the first years of their engineering education to more advanced topics.
In order to deepen readers’ understanding of the derived equations and theories, each chapter also includes supplementary problems. These problems start with fundamental knowledge questions on the theory presented in the chapter, followed by calculation problems. In total over 80 such calculation problems are provided, along with brief solutions for each.
This book is especially designed to meet the needs of Australian students, reviewing the mathematics covered in their first two years at university. The 13-week course comprises three hours of lectures and two hours of tutorials per week.
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The purpose of the Kirby Technical Handbook is to assist the building designer or potential metal building owner in the proper and economical use of the pre-engineered buildings ( PEB ) and structural steel systems.
It is further intended that building officials,architects, designers, consultants and engineers will refer to and apply the data in this manual when considering approval of Kirby buildings.
Kirby buildings are designed by professional engineers and this manual was prepared under their direct supervision.
Dimensions and units used in this manual are in accordance with SI-the International System of Units. Where applicable, the unit now in common use is also shown for reference.
This manual is the property of Kirby Building Systems and will be revised periodically as changes are innovated. Architectural, structural and mechanical adaptations shown in this manual are intended to be typical only and Kirby therefore accepts no responsibility unless specifically agreed in writing
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Fully describes optimization methods that are currently most valuable in solving real-life problems. Since optimization has applications in almost every branch of science and technology, the text emphasizes their practical aspects in conjunction with the heuristics useful in making them perform more reliably and efficiently. To this end, it presents comparative numerical studies to give readers a feel for possibile applications and to illustrate the problems in assessing evidence. Also provides theoretical background which provides insights into how methods are derived. This edition offers revised coverage of basic theory and standard techniques, with updated discussions of line search methods, Newton and quasi-Newton methods, and conjugate direction methods, as well as a comprehensive treatment of restricted step or trust region methods not commonly found in the literature. Also includes recent developments in hybrid methods for nonlinear least squares; an extended discussion of linear programming, with new methods for stable updating of LU factors; and a completely new section on network programming. Chapters include computer subroutines, worked examples, and study questions.
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