Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 42
Book Description
Ultrasonic Evaluation of Mechanical Properties of Thick, Multilayered, Filament Wound Composites
Author: NASA Technical Memorandum
Author: Acousto-Ultrasonics
Author: J. DukePublisher: Springer Science & Business Media
ISBN: 1475719655
Category : Science
Languages : en
Pages : 348
Book Description
Finding and slzmg cracks and other crack-like discontinuities has been the center of attention for scientists and engineers developing and using nondestructive evaluation (NDE) technology. However, with advanced mate rials being "engineered" and used in critical structural components, a new for NDE has emerged. Whereas many traditional engineering materi challenge als fail due to the initiation and self-similar propagation of a crack, reinforced composite materials degrade and fail in a manner more analogously to the collapse of a structure. Consequently the NDE of such materials involves assessing the combined effect of the material's damaged condition rather than identifying and sizing single critical imperfection. In 1979 Alex Vary, seeking to address the challenge confronting the NDE of advanced fiber reinforced composite materials began work on a new method of materials characterization. Focusing on the problem of evaluating graphite fiber reinforcedl epoxy laminated plates; Vary used a piezoelectric transducer to excite a mechanical disturbance in a plate and, with a sensi tive piezoelectric transducer monitored the disturbance on the same surface of the plate. (Placing the transducers on the same surface was primarily for practical purpose but their displacement in the direction of anticipated service load was of fundamental significance!) To quantify this observation, he counted the number of excursions, of the resulting electrical signal, above a arbitrary voltage threshold; a procedure frequently used for acoustic emission signal analysis.
Scientific and Technical Aerospace Reports
Author: Engine Structures
Author: Acoustic Emission and Acousto-ultrasonic Techniques for Wood and Wood-based Composites
Author: Sumire KawamotoPublisher:
ISBN:
Category : Acoustic emission testing
Languages : en
Pages : 20
Book Description
Non-Destructive Testing And Evaluation For Manufacturing And Construction.
Author: H. Dos ReisPublisher: CRC Press
ISBN: 9780891169260
Category : Technology & Engineering
Languages : en
Pages : 576
Book Description
Exploring advances and strengthening communications among researchers in manufacturing and construction technologies, this book covers nondestructive testing and evaluation methods. Drawing on a wide range of experts, it provides insights from every sector of the field. Based on a three-day conference titled "Nondestructive Testing and Evaluation for Manufacturing and Construction" held on the campus of the University of Illinois at Urbana-Champaign, the papers presented in the book foster development of new and innovative methods.
Bibliography of Lewis Research Center Technical Publications Announced in 1986
Author: Non-Destructive Testing of Fibre-Reinforced Plastics Composites
Author: J. SummerscalesPublisher: Springer Science & Business Media
ISBN: 9781851664689
Category : Technology & Engineering
Languages : en
Pages : 520
Book Description
Materials Evaluation
Author: Publisher:
ISBN:
Category : Nondestructive testing
Languages : en
Pages : 748
Book Description