Fatigue crack growth monitoring at elevated temperatures using multiplexed Fiber Bragg Gratings

Richard J. Black; David J. Zare; Levy Oblea; Behzad M. Moslehi; Shamachary Sathish; Norman Schell; Kumar V. Jata

doi:10.1117/12.815887

30 March 2009 Fatigue crack growth monitoring at elevated temperatures using multiplexed Fiber Bragg Gratings

Richard J. Black, David J. Zare, Levy Oblea, Behzad M. Moslehi, Shamachary Sathish, Norman Schell, Kumar V. Jata

Proceedings Volume 7292, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009; 72922K (2009) https://doi.org/10.1117/12.815887
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2009, San Diego, California, United States

Abstract

Light-weight and multiplexable, Fiber Bragg Grating (FBG) optical sensors allow the integration of many sensors along a single electrically passive and electromagnetic interference immune optical fiber. In this paper, we describe the use of multiple FBGs for monitoring and early stage detection of fatigue crack growth. We provide experimental results over a range of temperatures for fatigue crack monitoring in titanium alloy specimens subjected to periodic loading for tens of thousands of cycles and demonstrate detection of early-stage fatigue crack extension.

Citation Download Citation

Richard J. Black, David J. Zare, Levy Oblea, Behzad M. Moslehi, Shamachary Sathish, Norman Schell, and Kumar V. Jata "Fatigue crack growth monitoring at elevated temperatures using multiplexed Fiber Bragg Gratings", Proc. SPIE 7292, Sensors and Smart Structures Technologies for Civil, Mechanical, and Aerospace Systems 2009, 72922K (30 March 2009); https://doi.org/10.1117/12.815887

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available