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  ESAB Pipelines Welding Handbook
Posted by: david-smith - 05-02-2012, 01:18 AM - Forum: Mechanics & Material Technology (Elasticity, Plasticity and Nonlinearity) - No Replies

ESAB Pipelines Welding Handbook

Author: esab | Size: 1.43 MB | Format: PDF | Quality: Original preprint | Publisher: esab | pages: 65

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Presentation
Every day countless kilometres of steel pipelines are installed
worldwide for the most varied civil and industrial uses.
They form real networks comparable to a system of road networks,
which, although not so obvious, are definitely much more intricate and
carry fluids that have become essential for us.
To comply with technical specifications and fulfil the necessary safety
requisites, special materials and welding processes which have
evolved with the sector have been developed in recent years.
The main welding process used to install the pipelines is manual
welding with coated electrode, which, thanks to its ease and
versatility, is still the one most used.
However, to limit costs and increase welding productivity, particularly
on long routes, various constructors have adopted the semi-automatic
or completely automatic welding process with solid wire or wire
flux coated with gaseous protection.
This handbook describes both methods. Ample space has been
dedicated, in particular, to manual welding, with particular reference to
the operative practice and quality assessment, due to its considerable
use still today, but not neglecting more modern and productive
methods which will be increasingly used in future.
The presumption of this work is to be able to satisfy the most
demanding technician and welder, but, in particular, to supply each
user with useful information and a solid operative basis, as regards
the processes and filler materials and the welding equipment.

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  Dislocations in Solids, Volume 12
Posted by: david-smith - 05-02-2012, 01:14 AM - Forum: Mechanics & Material Technology (Elasticity, Plasticity and Nonlinearity) - No Replies

Dislocations in Solids vol 12

Author: F. R. N. NABARRO-J. P. HIRTH | Size: 12.7 MB | Format: PDF | Quality: Original preprint | Publisher: Elsevier | Year: 2004 | pages: 603 | ISBN: 0-444-51483-X (volume)-0-444-85269-7 (set)-1572-4859

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Preface
This is the first volume to appear under our joint editorship. While Volume 11 concentrated
on the single topic of dislocations and work hardening, the present volume spreads
over the whole range of the study of dislocations from the application by Kléman and
his colleagues of homotopy theory to classifying the line and point defects of mesomorphic
phases to Chaudhri’s account of the experimental observations of dislocations formed
around indentations.
Chaper 64, by Cai, Bulatov, Chang and Yip, discusses the influence of the structure of
the core of a dislocation on its mobility. The power of modern computation allows this
topic to be treated from the first principles of electron theory, and with empirical potentials
for more complicated problems. Advances in electron microscopy allow these theoretical
predictions to be tested.
In Chapter 65, Xu analyzes the emission of dislocations from the tip of a crack and its
influence on the brittle to ductile transition. Again, the treatment is predominantly theoretical,
but it is consistently related to the very practical example of alpha iron.
In a dazzling interplay of experiment and abstract mathematics, Kléman, Lavrentovich
and Nastishin analyze the line and point structural defects of the many mesomorphic phases
which have become known in recent years.
Chapter 67, by Coupeau,Girard and Rabier, is essentially experimental. It shows howthe
various modern techniques of scanning probe microscopy can be used to study dislocations
and their interaction with the free surface.
Chapter 68, by Mitchell and Heuer, considers the complex dislocations that can form in
ceramic crystals on the basis of observations by transmission electron microscopy and
presents mechanistic models for the motion of the dislocations in various temperature
regimes.
While the underlying aim of the study of dislocations in energetic crystals by Armstrong
and Elban in Chapter 69 is to understand the role of dislocations in the process of detonation,
it has the wider interest of studying dislocations in molecular crystals which are
“elastically soft, plastically hard, and brittle”.
Chaudhri in Chapter 70 discusses the role of dislocations in indentation processes,
largely on the basis of the elastic analysis by E.H. Yoffe. The special case of nanoindentations
is treated only briefly.
F.R.N. Nabarro
J.P. Hirth

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  brazing handbook
Posted by: david-smith - 05-02-2012, 01:08 AM - Forum: Mechanics & Material Technology (Elasticity, Plasticity and Nonlinearity) - No Replies

brazing handbook

Author: cuprobraze | Size: 1.91 MB | Format: PDF | Quality: Original preprint | Publisher: cuprobraze | Year: 2006 | pages: 110

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Forewords
The CuproBraze brazing handbook is a way to share the latest knowledge regarding the CuproBraze process. It deals with technical questions in general. The CuproBraze process is rather young and developments in different areas are still on-going. Therefore, all recommendations in the handbook should be seen as advice, sometimes better or other ways to success can be found. The handbook will be updated from time to time and if there are any questions or other matters which should be included, please contact editors.
The handbook is based on the original manuscript of Leif Tapper, who has retired when this edition comes out.
---------------------
Contents
1. General
1.1 Efficient heat exchangers
1.2 Technology development
1.3 Effects of annealing
1.4 Soldering and brazing
2. Copper alloys
2.1 Fin material
2.2 Tube material
2.3 Brass material for headers, side supports and similar applications
2.4 Strength at elevated temperatures
3. Filler materials
3.1 Brazing powder
3.2 Brazing foil
3.3 Brazing paste
4. Paste application
4.1 Paste on tubes
4.2 Paste on fin tips
4.3 Tube-to-header joints
5. Fabrication and assembly of components
5.1 Tube fabrication
5.2 HF-welded tubes
5.3 Folded tubes
5.4 Fins
5.5 Headers
5.6 Surface conditions
5.7 Brazing fixtures and assemblies
6. Brazing operation
6.1 Atmosphere
6.2 Temperature and time
7. Selecting a furnace
7.1 Batch furnace
7.2 Semi-continuous furnace
7.3 Continuous furnace
7.4 Heating source
7.5 Process emissions
8. Corrosion resistance
8.1 Cleaning after brazing
8.2 lnternal corrosion
8.3 External corrosion
8.4 Coatings
9. Special brazing processes
9.1 One shot brazing
9.2 Brazing of parts with internal turbulators (CAC)
9.3 Splitter fin together with CuproBraze
9.4 Brazing of steel parts
10 Quality check
10.1 Visual inspection in general
Reparability
11.1 Soldering
11.2 Re-brazing
11.3 Brazing with AgCu filler metals
12. Troubleshooting
13. Luvata Brazing Center
14. Getting started
14.1 Contacts
14.2 Web sites
14.3 Regular publications
14.4 Recent technical literature
15. CuproBraze in brief

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  Bohler Welding Guide 2008
Posted by: david-smith - 05-02-2012, 01:01 AM - Forum: Mechanics & Material Technology (Elasticity, Plasticity and Nonlinearity) - No Replies

Bohler Welding Guide 2008

Author: bohler | Size: 3.3 MB | Format: PDF | Quality: Original preprint | Publisher: bohler | Year: 2008 | pages: 515

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  bohler WELDING CONSUMABLES FOR PIPELINE CONSTRUCTION
Posted by: david-smith - 05-02-2012, 12:57 AM - Forum: Mechanics & Material Technology (Elasticity, Plasticity and Nonlinearity) - No Replies

bohler WELDING CONSUMABLES FOR PIPELINE CONSTRUCTION

Author: bohler | Size: 2.66 MB | Format: PDF | Quality: Original preprint | Publisher: bohler | pages: 63

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  Blacksmithing Welding and Soldering Rural Mechanics
Posted by: david-smith - 05-02-2012, 12:53 AM - Forum: Mechanics & Material Technology (Elasticity, Plasticity and Nonlinearity) - Replies (1)

Blacksmithing Welding and Soldering Rural Mechanics

Author: winden | Size: 10 MB | Format: PDF | Quality: Scanner | Publisher: tool foundation | Year: 1989 | pages: 139 | ISBN: 90-70857-15-4

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  Welding Manual (Haynes Manuals)
Posted by: david-smith - 05-02-2012, 12:48 AM - Forum: Mechanics & Material Technology (Elasticity, Plasticity and Nonlinearity) - Replies (2)

Welding Manual (Haynes Manuals)

Author: Jay Storer (Author) | Size: 10 MB | Format: PDF | Quality: Unspecified | Publisher: Haynes Manuals, Inc | Year: 1995 | pages: 160 | ISBN: 1563921103-978-1563921100

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Like the rest of Haynes' manuals, concise and to the point. Well written and good layout as well. As noted above by others, it's divided off into chapters each covers first the history and theory behind the various types of welding, and then a general walk-through of the use. It covers the basics from someone who's walking into welding cold (er, bad pun, sorry) not necessarily a handbook for a welding student. In its defense, this is admitted within its pages. Still i found it to be a useful addition to my shop library. It was interesting reading, as well as a good primer for someone who is looking into starting up a welding rig. If you think you're ready to buy your first welder, i recommend you take a look at this. Well worth the couple of bucks. One last point, as with all technical books, keep an eye out for the newest editions. Advancements are always making tech manuals slightly out of date. Not a real big concern as far as welding, but something to keep an eye on.

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  Displacement-based Seismic Design of Shear Wall Buildings
Posted by: david-smith - 05-01-2012, 11:30 PM - Forum: Archive - Replies (1)

Displacement-based Seismic Design of Shear Wall Buildings
Freddy Eduardo Pina Burgos, Carleton University (Canada)., ProQuest Co, Carleton University. Dissertation. Engineering, Civil and Environmental
Carleton University (Canada), 2006 - 300 pages
A displacement-based method of seismic design (DBSD) is presented with particular reference to the design of reinforced concrete shear wall buildings. For preliminary design, approximate estimates of the yield and ultimate displacements are obtained, the former from simple empirical relations, and the latter to satisfy the following criteria: (1) satisfy code-specified drift limits, (2) ensure stability under P-Delta effects, and (3) keep the ductility demand within ductility capacity. For a multi-storey building the structure is converted to an equivalent single-degree-of-freedom (SDOF) system using an assumed deformation shape that is representative of the first mode. The required base shear strength of the SDOF system is determined from the inelastic demand spectrum corresponding to the ductility demand, which is the ratio of ultimate to yield displacement. The base shear is distributed across the height using an assumed pattern, such as the one given by the National Building Code of Canada, and the structure is designed for the moments produced by the estimated shears. (Abstract shortened by UMI.)
ISBN 0494183314, 9780494183311

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  Ductile Seismic Design of Steel-Concrete Composite Structures
Posted by: david-smith - 05-01-2012, 11:28 PM - Forum: Archive - No Replies

Ductile Seismic Design of Steel-Concrete Composite Structures
Srour Nofal
[Image: 47587687049714186926.jpg]
Publisher LAP Lambert Academic Publishing, 2012
ISBN 3848443325, 9783848443321
Length 248 pages
In order to allow the formation of the greatest number of plastic hinges and to dissipate as much as possible seismic energy of moment-resisting frames, dissipative zones should be mainly located in plastic hinges in the beams or in the beam-column joints, but not in the columns except at the base of the frame. It is clear that this design method strongly depends on actual mechanical properties of materials. The possibility that the actual yield strength of steel is higher than the nominal yield strength in dissipative zones should be taken into account by a material overstrength factor for the design of non-dissipative zones. In spite of the fact that this point is essential in seismic design, the value to be given to this overstrength factor varies in the provisions of different standards. Moreover, these standards don't provide adequate limitations on mechanical properties for steel products even if it should be directly related to the overstrength factor chosen. For these reasons, this work aimed to define suitable harmonised rules and recommendations for production standards and structural regulations for steel-concrete composite structures located at earthquake-prone areas.

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  Seismic Design for Engineering Plant
Posted by: david-smith - 05-01-2012, 11:16 PM - Forum: Archive - No Replies

Seismic Design for Engineering Plant
Chris Ealing, John MacFarlane
[Image: 86070470030683124965.jpg]
Editors Chris Ealing, John Andrew MacFarlane, John MacFarlane
Edition illustrated
Publisher John Wiley & Sons, 2003
ISBN 1860583644, 9781860583643
Length 214 pages
About the author (2003)

Chris Ealing graduated in 1964 after a student apprenticeship with English Electric. His career has been spent with design, manufacture, and construction contracting companies serving the civil nuclear power industry. He progressed from design engineer to design manager, business director, and finally engineering director before retiring in 2000. While not a seismic specialist, experience of projects with a seismic requirement was gained in the USA, Romania, Hungary, and Japan, in addition to the UK. He is the author of numerous technical papers on the subject of dry storage of spent nuclear fuels and was Chairman of the IMechE Nuclear Power Committee for a number of years.

John MacFarlane is a chartered mechanical and chartered civil engineer with over 30 years' experience in the heavy mechanical, civil, and nuclear industries. For the past 22 years, he has had a specific interest in the seismic qualification and design of nuclear power plant structures, systems, and plant gained in the UK and overseas. He has published a number of papers nationally and internationally, and is currently Group Head of Civil Engineering, for British Energy.
--------------------------------
The importance of continuous research into Seismic Design for Engineering Plant can never be underestimated. Earthquake disaster prevention is a fascinating area requiring ingenious solutions to its unique problems. The benefits of sharing information from developments in this field are also of vital importance.

This new book describes and assesses the seismic requirements for different types of structures. In focussing on nuclear chemical plants critical guidance is given on design and cost-effective methods. Bringing together valuable experience from a wide range of disciplines, this important volume covers an informative selection of topics.

Contents include:

Introduction to Seismic Design
Expected accelerations and ways to minimize interaction between structural and mechanical components
The practical aspects of designing and assessing mechanical handling equipment for seismic events
Nuclear safety requirements for travelling cranes
Overview of vessel seismic design
Seismic qualification of existing pipework in UK nuclear power plants
Construction of a three-dimensional, large-scale shaking table land development of core technology

The contributors to this book are experts in their field whether they are from the nuclear, academic, governmental, or engineering consultant sectors. Their experienced and informed contributions will highlight and explore the most recent developments and challenges facing this highly relevant field of mechanical engineering.

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