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OriginLab produces professional data analysis and graphing software for scientists and engineers. Our products are designed to be easy-to-use, yet have the power and versatility to provide for the most demanding user.
OriginPro 8 offers all of the features of Origin plus extended analysis tools for statistics, 3D fitting, image processing and signal processing.
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Screen Measuring 4.0 | 5MB
Screen Calipers
The accurate way to measure on a screen, at any angle in pixels, inches or any unit.
Screen Protractor
Work with engineering plans or designs to measure degrees or radians on your screen.
Screen Compass
Measure circular or polygonal areas on your screen with the digital draftsman's tool.
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Historical stone arch bridges are still a major part of the infrastructure in many countries. Although this type of bridge has proven to be an efficient construction type, it often poses the problem of insufficient numerical models of the load bearing behavior. Therefore the book introduces methods to adapt life loads and introduces different types of numerical models of the load resistance respectively. The book continues with the introduction of specific damages and strengthening techniques. The book particularly focuses on the probabilistic safety assessment of historical arch bridges, for which often only limited material and structural data is available.
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Amer Society of Mechanical | 2002 | ISBN: 0791801772 | 269 pages | PDF | 16,1 MB
This essential new volume provides background information, historical perspective, and expert commentary on the ASME B31.3 Code requirements for process piping design and construction. It provides the most complete coverage of the Code that is available today and is packed with additional information useful to those responsible for the design and mechanical integrity of process piping. The author is a long-serving member of the ASME B31.3, Process Piping Code committee. Dr. Becht explains the principal intentions of the Code, covering the content of each of the Code's chapters. Book inserts cover special topics such as calculation of refractory lined pipe wall temperature, spring design, design for vibration, welding processes, bonding processes and expansion joint pressure thrust..Appendices in th book include useful information for pressure design and flexibility analysis as well as guidelines for computer flexibility analysis and design of piping systems with expansion joints. From the new designer wanting to know how to size a pipe wall thickness or design a spring to the expert piping engineer wanting to understand some nuance or intent of the Code, everyone whose career involves process piping will find this to be a valuable reference.
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Passive and Active Structural Vibration Control in Civil Engineering
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In structural engineering, one of the constant challenges is to find new and better means
of designing new structures or strengthening existing ones so that they, together with
their occupants and contents, can be better protected from the damaging effects of
destructive environmental forces such as wind, wave loads, and earthquakes. As a result,
new and innovative concepts of structural protection have been advanced and are at
various stages of development. Structural protective systems can be divided into three
groups as shown in Table I. The technique of seismic isolation is now widely used in
many parts of the world. A seismic isolation system is typically placed at the foundation
of a structure which, by means of its flexibility and energy absorption capability, partially
absorbs and partially reflects some of the earthquake input energy before it is transmitted
to the structure. The net effect is a reduction of energy dissipation demand on the
structural system, resulting in an increase in its survivability.
This collection of lecture notes represents an attempt to introduce the basic concepts
of these relatively new technologies, to provide a working knowledge of this exciting and
fast expanding field, and to bring up-to-date current research and world-wide
development in seismic isolation, pussive energy dissipation, and active control. The
book is divided into three parts, each addressing one of these topics. In each case, basic
principles are introduced, followed by design and applications, implementation issues,
case studies, and code issues if applicable.
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Nowadays, we starts to find a .djvu format in documents files. It's quite equal PDF format, but lighter and small size file.
Link to DjVu Viewer:
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A short guide on converting djvu file to acrobat format. Since djvu is not widely supported in portable devices such as pdas, such conversion will be essential. Here are the steps by making use of print function of the djvu viewer.
1- Download FreePDF here:
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2- Download and Install windjview (I suppose you have done so):
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Composite Materials: Testing, Design, and Acceptance Criteria (ASTM Special Technical Publication)
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ASTM International, "Composite Materials: Testing, Design, and Acceptance Criteria (Astm Special Technical Publication)"
ASTM International; illustrated edition (July 1, 2002) | English | 0803128932 | 279 pages | PDF | 5.71 MB
STP 1416 features 17 peer-reviewed papers covering various aspects of testing, design, and acceptance criteria for composite materials. Topics cover:
* NDT Evaluation
* Material Qualification
* Full-Scale Structural Testing
* Durability
* Test Method Development
* Micromechanics
* Damage Resistance and Tolerance
* Impact
* Bucking
Audience: STP is a valuable research tool for both the civil engineering infrastructure and aerospace communities.
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Weian Yao, Wanxie Zhong, Chee Wah Lim "Symplectic Elasticity"
World Scientific Publishing Company | English | 2009-02-26 | ISBN: 9812778705 | 316 pages | PDF | 3 MB
Solid mechanics problems have long been regarded as bottlenecks in the development of elasticity. In contrast to traditional solution methodologies, such as Timoshenko s theory of elasticity for which the main technique is the semi-inverse method, this book presents a new approach based on the Hamiltonian principle and the symplectic duality system where solutions are derived in a rational manner in the symplectic space. Departing from the conventional Euclidean space with one kind of variable, the symplectic space with dual variables thus provides a fundamental breakthrough.
This book explains the new solution methodology by discussing plane isotropic elasticity, multiple layered plate, anisotropic elasticity, sectorial plate and thin plate bending problems in some detail. A number of existing problems without analytical solutions within the framework of classical approaches are solved analytically using this symplectic approach. Symplectic methodologies can be applied not only to problems in elasticity, but also to other solid mechanics problems. In addition, it can also be extended to various engineering mechanics and mathematical physics fields, such as vibration, wave propagation, control theory, electromagnetism and quantum mechanics.
Contents: Mathematical Preliminaries; Fundamental Equations of Elasticity and Variational Principle; The Timoshenko Beam Theory and Its Extension; Plane Elasticity in Rectangular Coordinates; Plane Anisotropic Elasticity Problems; Saint Venant Problems for Laminated Composite Plates; Solutions for Plane Elasticity in Polar Coordinates; Hamiltonian System for Bending of Thin Plates.
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Bearing Steel Technology, ASTM STP 1419 (Astm Special Technical Publication)
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John M. Beswick, "Bearing Steel Technology, ASTM STP 1419 (Astm Special Technical Publication)" ASTM International; illustrated edition (July 2002) | English | 0803128940 | 533 pages | PDF | 11.28 MB
Forty-two peer-reviewed papers provide the latest global information on bearing steel manufacture and service life endurance along with an up-to-date perspective on rolling bearing steel technologies.
Papers cover:
Bearing Steel Process Developments;
Steel Technology and Bearing Component Manufacture; Developments in Bearing Steel quality Assessment and Correlations with Bearing Life;
Developments in Bearing Service Life Testing; Bearing Metallurgy Developments for Improved Service Life;
Developments in High Alloy Steel for Improved High Temperature and Enhanced Corrosion Resistance Properties;
Microstructural Changes and Its Relationships with Bearing Life and Life Time Predictions; Material Factors in Bearing Life Calculations.
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