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Title: FROM NDE WITH A Q TO SHM AND BEYOND

Abstract

In the nineteen-sixties, a significant limitation of NDI and NDE became apparent with the advent of fracture mechanics. Fracture mechanics requires quantitative information on defects, which has to be obtained from quantitative non-destructive testing. A DARPA Program directed by Don Thompson provided the point of departure for the journey to put the Q with NDE. The DARPA Program, and subsequent DOD, FAA and industrial programs produced seminal results for diagnostics and prognostics. In diagnostics, measurement models, probability of detection considerations and techniques of defect characterization were developed, which were complemented by damage evolution laws, probabilistic failure analysis and damage progression estimates, for methods of prognostication. The new results in QNDE naturally led to the concept of structural health monitoring (SHM), whereby sensors are permanently installed on structures. An SHM system can provide on-demand (or continuous) information on the state of a structure, so that an assessment of the structural integrity can be made at any time, and timely remedial actions can be taken. In this paper, we review the development of QNDE towards SHM. Sensor development, data processing, materials engineering and solid mechanics play dominant roles in both the diagnostic and the prognostic components of SHM. A probabilistic approach ismore » essential, as will be shown by examples of pre-crack fatigue damage, crack growth and optimization of an inspection schedule.« less

Authors:
 [1]
  1. Center for Quality Engineering and Failure Prevention, Northwestern University Evanston, IL 60208 (United States)
Publication Date:
OSTI Identifier:
21260290
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 1096; Journal Issue: 1; Conference: 35. annual review of progress in quantitative nondestructive evaluation, Chicago, IL (United States), 20-25 Jul 2008; Other Information: DOI: 10.1063/1.3114257; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; CRACK PROPAGATION; CRACKS; DAMAGE; DATA PROCESSING; DEFECTS; FAILURES; FRACTURE MECHANICS; INSPECTION; NONDESTRUCTIVE TESTING; NUCLEAR POWER PLANTS; OPTIMIZATION; PLASMA DIAGNOSTICS; PROBABILISTIC ESTIMATION; PROBABILITY; SENSORS

Citation Formats

Achenbach, J D. FROM NDE WITH A Q TO SHM AND BEYOND. United States: N. p., 2009. Web. doi:10.1063/1.3114257.
Achenbach, J D. FROM NDE WITH A Q TO SHM AND BEYOND. United States. https://doi.org/10.1063/1.3114257
Achenbach, J D. 2009. "FROM NDE WITH A Q TO SHM AND BEYOND". United States. https://doi.org/10.1063/1.3114257.
@article{osti_21260290,
title = {FROM NDE WITH A Q TO SHM AND BEYOND},
author = {Achenbach, J D},
abstractNote = {In the nineteen-sixties, a significant limitation of NDI and NDE became apparent with the advent of fracture mechanics. Fracture mechanics requires quantitative information on defects, which has to be obtained from quantitative non-destructive testing. A DARPA Program directed by Don Thompson provided the point of departure for the journey to put the Q with NDE. The DARPA Program, and subsequent DOD, FAA and industrial programs produced seminal results for diagnostics and prognostics. In diagnostics, measurement models, probability of detection considerations and techniques of defect characterization were developed, which were complemented by damage evolution laws, probabilistic failure analysis and damage progression estimates, for methods of prognostication. The new results in QNDE naturally led to the concept of structural health monitoring (SHM), whereby sensors are permanently installed on structures. An SHM system can provide on-demand (or continuous) information on the state of a structure, so that an assessment of the structural integrity can be made at any time, and timely remedial actions can be taken. In this paper, we review the development of QNDE towards SHM. Sensor development, data processing, materials engineering and solid mechanics play dominant roles in both the diagnostic and the prognostic components of SHM. A probabilistic approach is essential, as will be shown by examples of pre-crack fatigue damage, crack growth and optimization of an inspection schedule.},
doi = {10.1063/1.3114257},
url = {https://www.osti.gov/biblio/21260290}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 1096,
place = {United States},
year = {Tue Mar 03 00:00:00 EST 2009},
month = {Tue Mar 03 00:00:00 EST 2009}
}