CONFERENCE PROCEEDINGS
Advanced Search >
Home > Proceedings > Volume 6177 > Article
Translator Disclaimer
15 March 2006 Detection of debonding in a tile-based thermal protection system via change in stiffness using continuation methods
Amit Shukla; Jeong-Hoi Koo
Author Affiliations +
Proceedings Volume 6177, Health Monitoring and Smart Nondestructive Evaluation of Structural and Biological Systems V; 61770F (2006) https://doi.org/10.1117/12.658702
Event: Nondestructive Evaluation for Health Monitoring and Diagnostics, 2006, San Diego, CA, United States
Abstract
Thermal protection system is a critical component of a space vehicle and is essential for safe re-entry into the atmosphere. The loss of stiffness in tile-based thermal protection system is an essential mode of damage and has lead to loss of a space vehicle due to excessive aero-dynamic heating during re-entry. The inherent nonlinear nature of the coupling of these tiles with the space vehicle body is well-known. This paper explores this nonlinear coupling and proposes a method based on continuation analysis of the nonlinear model to detect and track this damage. The model used was first proposed by Luo and Hanagud.1 White, Adams and Jata (2005)2 used modal analysis to conduct system identification and damage identification on a similar system using method of virtual forces. The present research presents another approach by utilizing periodic excitations to estimate the presence and degree of damage. Parametric studies are also conducted to study the effect of variations in mass on the detection of change in stiffness using the proposed method.
© (2006) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation Download Citation
Amit Shukla and Jeong-Hoi Koo "Detection of debonding in a tile-based thermal protection system via change in stiffness using continuation methods", Proc. SPIE 6177, Health Monitoring and Smart Nondestructive Evaluation of Structural and Biological Systems V, 61770F (15 March 2006); https://doi.org/10.1117/12.658702
PROCEEDINGS
 10 PAGES
DOWNLOAD PDF SAVE TO MY LIBRARY
SHARE
GET CITATION
< Previous Article
|
Next Article >
Advertisement
Advertisement
KEYWORDS
RELATED CONTENT
Subscribe to Digital Library
Receive Erratum Email Alert
Back to Top