Stress Wave Timing Nondestructive Evaluation Tools for Inspecting Historic Structures
Author:
Publisher:
Published: 2000
Total Pages: 20
ISBN-13:
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Dividends from Wood Research
Author:
Publisher:
Published: 1994
Total Pages: 54
ISBN-13:
DOWNLOAD EBOOKStructural Analysis of Historic Construction: Preserving Safety and Significance, Two Volume Set
Author: Dina D'Ayala
Publisher: CRC Press
Published: 2008-06-02
Total Pages: 1590
ISBN-13: 1439828229
DOWNLOAD EBOOKThe successful preservation of an historic building, complex or city depends on the continued use and daily care that come with it. The possibility of continued use depends on the adaptation of the building to modern standards and practice of living, requiring changes in constructional or structural features. Conservation engineering is the process
Acoustics of Wood
Author: Voichita Bucur
Publisher: Springer Science & Business Media
Published: 2006-03-09
Total Pages: 403
ISBN-13: 3540305947
DOWNLOAD EBOOKConsiderable activity in the acoustics of wood has occurred since the first edition of this book in 1995. An informal survey of a number of the published articles and papers presented at international conferences revealed that the interest of the wood science community is continually increasing. In this context, I felt c- pelled to revise the text in accordance with newer findings and this prompted the addition in the present book of 159 new references added to the existing 850 in the first edition. As a result of the favorable comments upon the first edition, from students and colleagues, I have included a part on mathematical theory related to wave pro- gation in orthotropic solids in the general text, in order to enable the interested reader to follow the essentially physical aspects of the subject. A new chapter related to “acousto-ultrasonics” is introduced; Chapters 4, 5, 6, 8, 9, 10, 11, and 12 have been considerably expanded and a significant redistribution of the subject matter from the earlier edition has been made.
America's Bridges???
Author: Evan N. Kantwell
Publisher: Nova Publishers
Published: 2008
Total Pages: 198
ISBN-13: 9781604560978
DOWNLOAD EBOOKHas anyone actually seen a bridge being built in America? This editor has travelled for almost 40 years in America without seeing a single one being constructed -- and few even being repaired. Some critics point out that America has built excellent bridges in Vietnam and Iraq which indicates that the knowledge base remains intact. Others say that individual states cannot feed their armies of bureaucrats and fund their plush pensions and health care programs and still expect to build bridges. And the federal government cannot be counted on for much of anything useful. This book presents recent reports focusing on this part of America's crumbling infrastructure.
Nondestructive Evaluation of Wood
Author: Forest Service (U S )
Publisher: Government Printing Office
Published: 2015
Total Pages: 176
ISBN-13: 9780160928871
DOWNLOAD EBOOKNature's engineering of wood through genetics, wind, and weather creates a wide variability in wood as a material. Consequently, manufacture and users of wood products are frequently frustrated in dealing with the forest resource. Manufacturers sometimes argue that wood is difficult to consistently process into quality products because of the wide range of properties that exist in this raw material. Users of wood products can be equally frustrated with the performance variability found in finished products. Nondestructive evaluation (NDE) technologies have contributed significantly toward eliminating the cause of these frustrations. NDE technologies have been developed and are currently used in lumber and veneer grading programs that result in engineered materials that have consistent well-defined performance characteristics. This brief volume explores some of the processes that are used to manufacture wood, including green wood technology and provides a bit of history to wood production and its uses too. Other products that may interest you from the US Forest Service can be found at this link: https://bookstore.gpo.gov/agency/819
Science and Technology in Historic Preservation
Author: Ray A. Williamson
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 404
ISBN-13: 146154145X
DOWNLOAD EBOOKTechnology transfer has played an increasingly important role in historic preservation during the latter half of the twentieth century, a situation attested to by the undertaking of an important congressional study in 1986 that assessed the role of federal agencies in the field. In this book leading researchers update the earlier findings and contribute state-of-the-art reviews and evaluations of technological progress in their areas of expertise.
Condition Assessment of Main Structural Members of Stream Schooner WAPAMA
Author:
Publisher:
Published: 2008
Total Pages: 36
ISBN-13:
DOWNLOAD EBOOKThe historic American ship WAPAMA is the last surviving example of the wooden steam-powered schooners designed for the 19th- and 20th-century Pacific Coast lumber trade and coastal service. Since its launching in 1915, the WAPAMA has had a long and productive life in plying cargo and passengers along the stormy West Coast from Mexico to Alaska. As the sole survivor of the once numerous class, the WAPAMA was declared a National Historic Landmark in 1984. The wood structure of the WAPAMA has significantly deteriorated over the years and currently resides on a barge with internal and external structural supports. Portions of the vessel are unsafe for public access. Assisting in an effort to stabilize and rehabilitate this historic vessel, we conducted a field investigation on the current physical condition of the wooden structural members in January 2006. A variety of nondestructive testing (NDT) methods were employed to locate problem areas and define the severity of deterioration on key structural members such as keelsons, keel, ceiling planking, hull frames, clamps, and main deck beams. This report presents the main findings from this field investigation and demonstrates the use of state-of-the-art NDT technologies in evaluating physical and biological conditions of historic wood structures.
Assessment of Decay in Standing Timber Using Stress Wave Timing Nondestructive Evaluation Tools
Author:
Publisher:
Published: 2004
Total Pages: 16
ISBN-13:
DOWNLOAD EBOOKThis guide was prepared to assist field foresters in the use of stress wave timing instruments to locate and define areas of decay in standingtimber. The first three sections provide background information, the principles of stress wave nondestructive testing, and measurement techniques for stress?wave nondestructive testing. The last section is a detailed description of how to apply stress wave nondestructive testing methods to standing timber. A sample field data acquisition form is included.
Ultrasonics
Author: Dale Ensminger
Publisher: CRC Press
Published: 2024-02-21
Total Pages: 904
ISBN-13: 1000994953
DOWNLOAD EBOOKUpdated, revised, and restructured to reflect the latest advances in science and applications, the fourth edition of this best-selling industry and research reference covers the fundamental physical acoustics of ultrasonics and transducers, with a focus on piezoelectric and magnetostrictive modalities. It then discusses the full breadth of ultrasonics applications involving low power (sensing) and high power (processing) for research, industrial, and medical use. This book includes new content covering computer modeling used for acoustic and elastic wave phenomena, including scattering, mode conversion, transmission through layered media, Rayleigh and Lamb waves and flexural plates, modern horn design tools, Langevin transducers, and material characterization. There is more attention on process monitoring and advanced nondestructive testing and evaluation (NDT/NDE), including phased array ultrasound (PAUT), long-range inspection, using guided ultrasonic waves (GUW), internally rotary inspection systems (IRIS), time-of-flight diffraction (TOFD), and acoustic emission (AE). These methods are discussed and applied to both metals and nonmetals using illustrations in various industries, including now additionally for food and beverage products. The topics of defect sizing, capabilities, and limitations, including the probability of detection (POD), are introduced. Three chapters provide a new treatment of high-power ultrasonics, for both fluids and solids, and again, with examples of industrial engineering, food and beverage, pharmaceuticals, petrochemicals, and other process applications. Expanded coverage is given to medical and biological applications, covering diagnostics, therapy, and, at the highest powers, surgery. Key Features Provides an overview of fundamental analysis and transducer technologies needed to design and develop both measurement and processing systems Considers applications in material characterization and metrology Covers ultrasonic nondestructive testing and evaluation and high-power ultrasonics, which involves interactions that change the state of material Highlights medical and biomedical applications of ultrasound, focusing on the physical acoustics and the technology employed for diagnosis, therapy, surgery, and research This book is intended for both the undergraduate and graduate scientists and engineers, as well as the working professional, who seeks to understand the fundamentals together with a holistic treatment of the field of ultrasonics and its diversity of applications.
