Posted by: sia1 - 02-24-2011, 10:22 AM - Forum: Archive
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hi
dear user i need this book
Scrap Tire Derived Geomaterials - Opportunities and Challenges: Proceedings of the International Workshop IW-TDGM 2007 (Yokosuka, Japan, 23-24 March 2007)
Geomaterials derived from scrap tires continue to receive increased attention. These materials are now recognized as a suitable and alternative geomaterial, since they provide cost-effective solutions to many practical problems. This book presents current research and describes the latest advances in this promising field. It reflects the international significance of such recycled materials and discusses the use of whole tires, tire shreds, and tire chips, as well as tire chips mixed with soils and/or treated materials. Scrap Tire Derived Geomaterials also includes discussion about the geoenvironmental impact and assessment of these materials, with case studies, novel concepts, and field applications. It also contains information pertaining to mechanical properties and modeling.
Posted by: 797880 - 02-24-2011, 09:00 AM - Forum: Archive
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In this report, two new approaches, both the state space approach and the Lagrangian approach, are developed to consider the structure as a dynamical system. These are mixed methods, wherein besides displacements, the stress-resultants and other variable of state are primary unknowns. These methods can potentially be used for the analysis of structures to collapse as demonstrated by numerical examples. Attention is focused on skeletal structures, although the extension of the methods to other systems is discussed. The methods suggested, can be coupled with suitable pre- and post-processors to develop a unified computational platform for analysis of collapsing structures. Several appendices are included along with numerous equations and diagrams.
Posted by: 797880 - 02-24-2011, 08:53 AM - Forum: Archive
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This report investigates the failure mechanisms of shear-critical squat (ratio height to length of less than two) reinforced concrete walls, commonly used in many commercial buildings and nearly all safety-related nuclear structures. A database with experimental data obtained from 434 tests is assembled with the objective of improving the current state of knowledge on squat wall response. The adequateness of the peak shear strength prediction equations available in current design provisions is evaluated. Improved empirical equations are developed for peak shear strength prediction for rectangular walls and walls with boundary elements in a format suitable for inclusion in standards and codes of practice. Squat walls are modeled using finite elements to predict their monotonic and cyclic responses. Modeling decisions that are critical to predict the wall responses are explored and recommendations for finite element modeling are made. Macro-level hysteretic models are prepared for a small number of squat walls for which digital load-displacement data are available. The calibrated Ibarra-Krawinkler model is used to properly capture the strength, stiffness degradation, and pinching effects in the walls response. Information in the database is used to identify damage states and to develop fragility functions for buildings and safety-related nuclear structures incorporating squat reinforced concrete walls.
Manual for the seismic of steel and concrete buildings to Eurocode 8 is a document of IstructE.
It is useful to understand clear about eurecode 8 and detail of Reinforced concrete of steel element.
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Hi dear members
I would be grateful if anyone could provide me with these papers and reports about optimal control .
1-Optimal Control of Nonlinear Structures
J. N. Yang, F. X. Long, and D. Wong
J. Appl. Mech. -- December 1988 -- Volume 55, Issue 4, 931 (8 pages)
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2-INSTANTANEOUS OPTIMAL CONTROL FOR SEISMIC ANALYSIS OF NON-LINEAR STRUCTURES
K. Huang - *Gradute Studenta; R. Betti† - †Associate Professora; M. M. Ettouney† - ‡Principalb
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3-Instantaneous Optimal Control with Acceleration and Velocity Feedback
J.N.Yang, Z.Li
NCEER-90-0016 | 6/29/1990 | 52 pages |
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4-Optimal Control of Nonlinear Flexible Structures
J.N. Yang, F.X. Long and D. Wong
NCEER-88-0002 | 1/22/1988 | 110 pages
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I am posting this as a way i can get your opinions on these two softwares. If you dont already know. PaveAir is made by the FAA and MicroPaver is made by the armycore of engineers. They are used in Pavement Management Systems around the world. I have been researching several airports which i am going to be developing a PMS guide for the smaller airports but i am stuck on which one i should recommend. Each have benefits and each have cons . I do not want to put a personal judgment but a choice based on user use. If anyone wants the software i can get it for you or show you how to install it. but for now please let me know your opinions about each or both.
eatures
Each chapter designed as a stand-alone introduction to its topic, including detailed references for follow-up research
Discussions on the range of reinforcement forms used in commercial applications
Outline of techniques appropriate in identifying a material's micro- and meso-structures
Summary
In the past 50 years, great progress has been made in developing artificial fiber-reinforced composite materials, generally using filaments with microscopic diameters. An array of reinforcement forms can be used in commercial applications - with the microstructure being a critical factor in realizing the required properties in a material.
Microstructural Characterisation of Fibre-Reinforced Composites comprehensively examines the application of advanced microstructural characterization techniques to fiber-reinforced composites.
Table of Contents
Introduction, John Summerscales, University of Plymouth, United Kingdom
Introduction
Microscopy of Polymers and Composites
Textures
Advanced Techniques
Flexible Textile Composite Microstructure, Patricia A. Annis and Thomas W. Quigley, Jr., University of Georgia, Athens
Introduction
Textile Microscopy
Microstructural Characterisation of Flexible Textile Composites
Conclusion
3-D Confocal Microscopy of Glass Fibre-Reinforced Composites, Ashley R. Clarke, Geoff Archenhold, and N. Craig Davidson, University of Leeds, United Kingdom
Introduction
Confocal Laser Scanning Microscopy
CLSM Measurements of Polymer Composites
Application Areas for CLSM in Composite Research
Future Prospects for Confocal Microscopy
Geometric Modelling of Yarn and Fiber Assemblies, Michael Keefe, University of Delaware, Newark
Introduction
Model
Applications
Conclusion
Characterisation of Yarn Shape in Woven Fabric Composites, Steven W. Yurgatis, Clarkson University, Potsdam, New York and Julius Jortner, Jortner Research & Engineering Inc.
Introduction
Yarn and Cloth Terminology
Descriptions of Yarn Shape
Role of Yarn Shape in Composite Properties
Unresolved Issues
Quantitative Microstructural Analysis for Continuous Fibre Composites, Felicity J. Guild, University of Bristol, United Kingdom and John Summerscales University of Plymouth, United Kingdom
Introduction
Alternatives to Microscopy
Specimen Preparation and Examination
Large Scale Features
Measurement of Fibre Arrangement
Property-Microstructure Relationships
Process-Structure Relationships
Concluding Remarks
Electron Microscopy of Polymer Composites, Michele Guigon, Universite de Technologie de Compiegne, France
Introduction
Experimentation
Experimental Results
Conclusion
Micromechanics of Reinforcement Using Laser Raman Spectroscopy, Costas Galiotis, University of London, United Kingdom
Introduction
Experimentation
Micromechanics of Reinforcement in Composites
Conclusions
Acoustic Microscopy of Ceramic Fibre Composites, Charles William Lawrence and George Andrew Davidson Briggs, University of Oxford, United Kingdom
Introduction
Glass-Matrix Composites
Glass-Ceramic Matrix Composites
Metal-Matrix Composites
Conclusions
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This Part of BS 8118 provides recommendations for the design of the elements of framed, lattice and stiffened plate structures, using wrought aluminium alloy. The design recommendations are for a variety of aluminium alloys suitable for structural use, and apply to a range of structures subjected to normal atmospheric conditions such as bridges, buildings, towers, road and rail vehicles, marine craft, cranes and offshore topside structures.
This British Standard does not cover aerospace alloys, the detail design of castings, curved shell structures or structures subjected to severe thermal or chemical conditions. It is not intended to be used for the design of containment vessels, pipework, airborne structures or naval vessels.
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This part of BS 8118 specifies requirements for the materials, workmanship and protection of aluminium and aluminium alloy construction and structures.
The requirements of this standard apply to the fabrication, protection, assembly and erection of aluminium and aluminium alloy construction, but the engineer undertaking the design needs to be aware of those items which will affect the design.
Guidance on fabrication tolerances, erection tolerances and assembly tolerances is given in appendix A. Guidance on weld inspection acceptance levels is covered in appendix B.
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The link is from ali43. This post was stored in Bad Posts and now after checking is posted here. One of the portable posted in Blog do Birungueta.
Installed in Windows 7 32 bit.
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IMPORTANT NOTICE: You may use this software for evaluation purposes only.
If you like it, it is strongly suggested you buy it to support the developers.
By any means you may not use this software to make money or use it for commercial purpose.
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