Effect of Unbonded Joints in an Aluminum Honeycomb-core Material for Sandwich Constructions PDF Download
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Author: Charles Brazer Norris
Publisher:
ISBN:
Category : Adhesive joints
Languages : en
Pages : 18
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Book Description
Static shear, fatigue shear, and compression tests were made on an aluminum honeycomb core material. Bending and compression tests were made on sandwich panels having this core material and aluminum facings. The bonds between the honeycomb cells of some of the core material were completely removed. The modulus of rigidity and the shear strength of the unbonded material were found to be about 70% of those of the well-bonded material. The compressive strength of the unbonded material is about 50% of that of the well-bonded material, which is consistent with the assumption that the compressive strength is proportional to the critical compression stress of the cell walls.
Author: Charles Brazer Norris
Publisher:
ISBN:
Category : Adhesive joints
Languages : en
Pages : 18
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Book Description
Static shear, fatigue shear, and compression tests were made on an aluminum honeycomb core material. Bending and compression tests were made on sandwich panels having this core material and aluminum facings. The bonds between the honeycomb cells of some of the core material were completely removed. The modulus of rigidity and the shear strength of the unbonded material were found to be about 70% of those of the well-bonded material. The compressive strength of the unbonded material is about 50% of that of the well-bonded material, which is consistent with the assumption that the compressive strength is proportional to the critical compression stress of the cell walls.
Author: Ralph D. Lewis
Publisher:
ISBN:
Category : Liquid metals
Languages : en
Pages : 28
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Book Description
Author: ACI Committee 350
Publisher: American Concrete Institute
ISBN: 0870310682
Category : Concrete construction
Languages : en
Pages : 393
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Book Description
Standards for tests and materials - Durability requirements - Concrete quality, mixing, and placing - Formwork, embedded pipes, and construction and movement joints - Details of reinforcement - Analysis and design general considerations - Strength and serviceability requirements - Flexure and axial loads - Shear and torsion - Development and splices of reinforcement - Two-way slab systems - Walls - Footings - Precast concrete - Composite concrete flexural members - Prestressed concrete - Shells and folded plate members - Strength evaluation of existing structures - Special provisions for seismic design - Structural plain concrete.
Author: Kenneth H. McGhee
Publisher: Transportation Research Board
ISBN: 9780309056625
Category : Technology & Engineering
Languages : en
Pages : 80
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Book Description
This synthesis report will be of special interest to pavement designers, materials engineers, and others seeking information on portland cement concrete resurfacings (overlays) placed over both portland and asphalt cement concrete pavements. Information is presented on the various practices in use for the design, material selection, and construction techniques associated with each pavement type. Additional information is provided on resurfacing experience and performance, including an Appendix cataloging more than 700 existing resurfacing projects in North America. Transportation agencies in the United States are continuing to develop pavement management systems which take an objective and structured approach to life-cycle cost analysis requirements for pavement rehabilitation project analysis. This report of the Transportation Research Board also discusses the considerations involved in the selection of technically feasible resurfacing alternatives. Based on the longitudinal experience of 375 resurfacing projects that were cataloged in 1982 and the more than 700 projects identified in 1993, much useful information on the performance characteristics of portland cement concrete resurfacing is presented.
Author: Jacob Feld
Publisher: John Wiley & Sons
ISBN: 9780471574774
Category : Technology & Engineering
Languages : en
Pages : 528
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Book Description
First published in 1968, Jacob Feld's Construction Failure has longbeen considered the classic text on the subject. Retaining all ofthe key components of Feld's comprehensive exploration of the rootcauses of failure, this Second Edition addresses a multitude ofimportant industry developments to bring this landmark work up todate for a new generation of engineers, architects, andstudents. In addition to detailed coverage of current design tools,techniques, materials, and construction methods, ConstructionFailure, Second Edition features an entire chapter on theburgeoning area of construction litigation, including a thoroughexamination of alternative dispute resolution techniques. Like theoriginal, this edition discusses technical and procedural failuresof many different types of structures, but is now supplemented withnew case studies to illustrate the dynamics of failure in actiontoday. Jacob Feld knew thirty years ago that in order to learn from ourmistakes, we must first acknowledge and understand them. With thisrevised volume, Kenneth Carper has ensured that Feld'snow-posthumous message will continue to be heard for years tocome. Jacob Feld's comprehensive work on failure analysis has now beenskillfully amended to address current design and constructiontools, materials, and practices. Building on the first edition'speerless examination of the causes and lessons of failure,Construction Failure, Second Edition provides you with expandedcoverage of: * Technical, procedural, structural, and nonstructural failures * Natural hazards, earthworks, soil and foundation problems, andmore * Reinforced, precast and prestressed concrete, steel, timber,masonry, and other materials * Responsibility and litigation concerns, dispute avoidance, andalternative dispute resolution techniques * Construction safety issues * Many different types of structures, including dams andbridges Construction Failure has as much to teach us today as it did thirtyyears ago. This revised volume is an essential resource for designengineers, architects, construction managers, lawyers, and studentsin all of these fields.
Author: Di Hu
Publisher: Elsevier
ISBN: 0323859984
Category : Technology & Engineering
Languages : en
Pages : 462
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Book Description
Prestressing concrete technology is critical to understanding problems in existing civic structures including railway and highway bridges; to the rehabilitation of older structures; and to the design of new high-speed railway and long-span highway bridges. Analysis and Design of Prestressed Concrete delivers foundational concepts, and the latest research and design methods for the engineering of prestressed concrete, paying particular attention to crack resistance in the design of high-speed railway and long-span highway prestressed concrete bridges. The volume offers readers a comprehensive resource on prestressing technology and applications, as well as the advanced treatment of prestress losses and performance. Key aspects of this volume include analysis and design of prestressed concrete structures using a prestressing knowledge system, from initial stages to service; detailed loss calculation; time-dependent analysis on cross-sectional stresses; straightforward, simplified methods specified in codes; and in-depth calculation methods. Sixteen chapters combine standards and current research, theoretical analysis, and design methods into a practical resource on the analysis and design of prestressed concrete, as well as presenting novel calculation methods and theoretical models of practical use to engineers. - Presents a new approach to calculating prestress losses due to anchorage seating - Provides a unified method for calculating long-term prestress loss - Details cross-sectional stress analysis of prestressed concrete beams from jacking to service - Explains a new calculation method for long-term deflection of beams caused by creep and shrinkage - Gives a new theoretical model for calculating long-term crack width
Author: Ying-shu Yuan
Publisher: RILEM Publications
ISBN: 9782912143419
Category : Concrete
Languages : en
Pages : 800
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Book Description
Author: Joseph H. Brisch
Publisher: ASTM International
ISBN: 080312600X
Category : Masonry
Languages : en
Pages : 169
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Book Description
Papers from a June 2006 symposium report on recent work in cement, lime, mortars for unit masonry, and manutactured masonry units. Some specific topics covered include investigation and repair of glazed brick cladding, the benefits and problems of ASTM C 1324 for analyzing hardened masonry mortars, time-of-cooling effects on mortar joint color, and the selection and use of natural and manufactured stone adhered veneer. Other subjects examined include defection criteria for masonry beams, the effect of void area on brick masonry performance, seismic evaluation of low-rise reinforced masonry buildings with flexible diaphragms, and greening of mortars. B&w photos and illustrations are included. Trimble is affiliated with the Brick Industry Association. Brisch is affiliated with Rockwell Lime Company. There is no subject index.
Author: Edward G. Nawy
Publisher: CRC Press
ISBN: 1420007653
Category : Technology & Engineering
Languages : en
Pages : 1586
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Book Description
The Concrete Construction Engineering Handbook, Second Edition provides in depth coverage of concrete construction engineering and technology. It features state-of-the-art discussions on what design engineers and constructors need to know about concrete, focusing on - The latest advances in engineered concrete materials Reinforced concrete construction Specialized construction techniques Design recommendations for high performance With the newly revised edition of this essential handbook, designers, constructors, educators, and field personnel will learn how to produce the best and most durably engineered constructed facilities.
Author: Donald L. Wise
Publisher: Springer Science & Business Media
ISBN: 1592591973
Category : Technology & Engineering
Languages : en
Pages : 350
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Book Description
The medical device and drug industries standards in analytical methodology and are consistently among the strongest techno- quality control. logical performers. Materials are a key The users of Biomaterials Engineering ingredient in their dynamic growth. Devel- and Devices: Human Applications will r- opment of these materials is in a constant resent a broad base of backgrounds ranging state of activity, with the challenge of re- from the basic sciences (e. g. , polymer placing old materials that cannot withstand chemistry and biochemistry) to more the tests of time, and the new materials’ applied disciplines (e. g. , mechanical/ needs coming to the forefront in modern chemical engineering, orthopedics, and applications. This new reference text, pharmaceutics). To meet varied needs, each Biomaterials Engineering and Devices: chapter provides clear ancd fully detailed Human Applications, focuses on materials discussions. This in-depth, but practical, used in or on the human body—materials coverage should also assist recent indu- that define the world of “biomaterials. ” ees to the biomaterials circle. The editors Biomaterials Engineering and Devices: trust that this reference textbook conveys Human Applications focuses on mate- the intensity of this fast moving field in an rials development and characterization. enthusastic presentation. Chapters deal with issues in the selection of Donald L. Wise, PHD proper biomaterials from biocompatibility Debra J. Trantolo, PHD to biostability to structure/function relation- Kai-Uwe Lewandrowski, MD ships. Chapters also focus on the use of Joseph D. Gresser, PHD specific biomaterials based on their physio- Mario V.
