Application Of Artificial Neural Networks To Ultrasonic Pulse Echo System For Detecting Microcracks In Concrete

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Application Of Artificial Neural Networks To Ultrasonic Pulse Echo System For Detecting Microcracks In Concrete

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Author : A. Michel Alexander
language : en
Publisher:
Release Date : 1998

Application Of Artificial Neural Networks To Ultrasonic Pulse Echo System For Detecting Microcracks In Concrete written by A. Michel Alexander and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Alkali-aggregate reactions categories.

Application Of Artificial Neural Networks To Ultrasonic Pulse Echo System For Detecting Microcracks In Concrete

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Author : A. Michael Alexander
language : en
Publisher: Washington, DC : U.S. Army Corps of Engineers
Release Date : 1998

Application Of Artificial Neural Networks To Ultrasonic Pulse Echo System For Detecting Microcracks In Concrete written by A. Michael Alexander and has been published by Washington, DC : U.S. Army Corps of Engineers this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Alkali-aggregate reactions categories.

Concrete deterioration standards containing various levels of microcracks were engineered by adding calcium sulfate to the concrete mixture and curing under moisture at 38 deg. C (100 deg. F). The level of the mircocracks was classified according to the speed of the ultrasonic pulse velocity (UPV) through the specimens using the American Society for Testing and Material (ASTM) C 597 (ASTM 1994c) test method and was found to vary uniformly from 1,737 to 4,877 m/sec (5,700 to 16,000 ft/sec). After receiving some preprocessing, 186 ultrasonic pulse echo (UPE) signals were used as input training examples for the artificial neural network (ANN) system. Target values for the ANN were the measured UPVs as determined form the ASTM C 597 test method. The correlation coefficient from a least squares fit was 98.6 percent. After training, the ANN was performance tested with 30 UPE signals that the model had not seen in training. A least squares fit demonstrated that the output velocities from the ANN correlated well with the measured (target) UPVs. The correlation coefficient was 84.8 percent. The system was able to rank all six specimens in the correct order of deterioration. This investigation demonstrates that the automated interpretation of UPE signals for continuous interfaces by the ANN is feasible.

Technologies For Improving The Evaluation And Repair Of Concrete Bridge Decks

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Author :
language : en
Publisher:
Release Date : 1998

Technologies For Improving The Evaluation And Repair Of Concrete Bridge Decks written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Bridges categories.

Hazardous And Industrial Waste Proceedings 27th Mid Atlantic Conference

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Author : Arup K. SenGupta
language : en
Publisher: CRC Press
Release Date : 1995-07-06

Hazardous And Industrial Waste Proceedings 27th Mid Atlantic Conference written by Arup K. SenGupta and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995-07-06 with Science categories.

Proceedings Of The 2nd International Conference On Nondestructive Testing Of Concrete In The Infrastructure

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Author : Society for Experimental Mechanics
language : en
Publisher:
Release Date : 1996

Proceedings Of The 2nd International Conference On Nondestructive Testing Of Concrete In The Infrastructure written by Society for Experimental Mechanics and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Concrete categories.

Nondestructive Evaluation Of Aging Structures And Dams

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Author : Larry D. Olson
language : en
Publisher: SPIE-International Society for Optical Engineering
Release Date : 1995

Nondestructive Evaluation Of Aging Structures And Dams written by Larry D. Olson and has been published by SPIE-International Society for Optical Engineering this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Technology & Engineering categories.

Applied Mechanics Reviews

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Author :
language : en
Publisher:
Release Date : 2000

Applied Mechanics Reviews written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Mechanics, Applied categories.

British Journal Of Non Destructive Testing

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Author :
language : en
Publisher:
Release Date : 1993

British Journal Of Non Destructive Testing written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Nondestructive testing categories.

Metals Abstracts

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Author :
language : en
Publisher:
Release Date : 1993

Metals Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Metallurgy categories.

Index To Ieee Publications

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Author : Institute of Electrical and Electronics Engineers
language : en
Publisher:
Release Date : 1996

Index To Ieee Publications written by Institute of Electrical and Electronics Engineers and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Electric engineering categories.

Issues for 1973- cover the entire IEEE technical literature.