Structural Health Monitoring (SHM) techniques based on high frequency wave propagation (Acousto-Ultrasonics) are of interest due to their sensitivity to incipient damage in structures. Techniques that use small, low profile transducers allow for in-situ sensing and actuation and are particularly useful for integration on aerospace structures. Additionally, signal processing and interpretation of the data becomes important in the diagnosis process. Commonly, the development of an integrated hardware and software system based on Acousto-Ultrasonics is performed on simple structures such as flat metallic panels. In this study, the curved metallic and composite panels are examined as they provide complexity in both geometry and material used to represent helicopter tail boom structures. Damage at the edges of the curved panel is investigated as these locations typically experience damage related to fatigue. Piezoelectric transducers are mounted to the structures and used to excitation and sensing of the wave modes. The data was acquired and damage indices are used to quantify the effect of two types of damage: bolt torque loss, crack propagation between two bolts.
Skip Nav Destination
ASME 2008 Conference on Smart Materials, Adaptive Structures and Intelligent Systems
October 28–30, 2008
Ellicott City, Maryland, USA
Conference Sponsors:
- Aerospace Division
ISBN:
978-0-7918-4332-1
PROCEEDINGS PAPER
Torque Loss and Crack Monitoring Near Fasteners for Isotropic and Composite Helicopter Tail Boom Structural Models
Young-Tai Choi,
Young-Tai Choi
University of Maryland, College Park, MD
Search for other works by this author on:
Ashish S. Purekar,
Ashish S. Purekar
Techno-Sciences Inc., Beltsville, MD
Search for other works by this author on:
Norman M. Wereley
Norman M. Wereley
University of Maryland, College Park, MD
Search for other works by this author on:
Young-Tai Choi
University of Maryland, College Park, MD
Ashish S. Purekar
Techno-Sciences Inc., Beltsville, MD
Norman M. Wereley
University of Maryland, College Park, MD
Paper No:
SMASIS2008-531, pp. 193-200; 8 pages
Published Online:
July 13, 2009
Citation
Choi, Y, Purekar, AS, & Wereley, NM. "Torque Loss and Crack Monitoring Near Fasteners for Isotropic and Composite Helicopter Tail Boom Structural Models." Proceedings of the ASME 2008 Conference on Smart Materials, Adaptive Structures and Intelligent Systems. Smart Materials, Adaptive Structures and Intelligent Systems, Volume 2. Ellicott City, Maryland, USA. October 28–30, 2008. pp. 193-200. ASME. https://doi.org/10.1115/SMASIS2008-531
Download citation file:
10
Views
Related Proceedings Papers
Related Articles
Structural Health Monitoring of Glass/Epoxy Composite Plates Using PZT and PMN-PT Transducers
J. Eng. Mater. Technol (January,2011)
Decomposition Method to Detect Fatigue Damage Precursors in Thin Components Through Nonlinear Ultrasonic With Collinear Mixing Contributions
ASME J Nondestructive Evaluation (May,2020)
A Hybrid Actuator Model for Efficient Guided Wave-Based Structural Health Monitoring Simulations
ASME J Nondestructive Evaluation (November,2024)
Related Chapters
Understanding the Problem
Design and Application of the Worm Gear
Fatigue Damage Mechanisms in Composite Materials: A Review
Fatigue Mechanisms
Crack Behavior around a Nonmetallic Inclusion under Hydrogen Precharged Rolling Contact Fatigue
Bearing and Transmission Steels Technology