Real-time prediction of impact-induced damage for composite structures based on failure analysis and efficient database methods

Surajit Roy; Ingolf Mueller; Vishnuvardhan Janapati; Samik Das; Fu-Kuo Chang

doi:10.1117/12.917528

20 April 2012 Real-time prediction of impact-induced damage for composite structures based on failure analysis and efficient database methods

Surajit Roy, Ingolf Mueller, Vishnuvardhan Janapati, Samik Das, Fu-Kuo Chang

Author Affiliations +

Proceedings Volume 8348, Health Monitoring of Structural and Biological Systems 2012; 83481L (2012) https://doi.org/10.1117/12.917528
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2012, San Diego, California, United States

Abstract

This contribution presents a novel strategy to achieve real-time prediction of non-penetrating impact-induced damage, especially delamination between plies of composite laminated structures. The proposed strategy aims to create an optimum-sized database of simulated damage information on a given laminated structure using numerical failure models and pattern recognition technique. A multi-stage data clustering algorithm is implemented to identify regions in the structural Finite Element (FE) model that have similar damage signatures. The generated database is linked to the real-time estimate of impact location and load-time history obtained from piezoelectric transducers based passive impact monitoring system. A composite stiffener panel is selected as a model problem and it is shown that the proposed strategy based on pattern recognition will result in large savings in computational cost for the database generation besides providing real-time damage diagnostic capabilities for in-service adverse impact events within certain confidence bounds.

Citation Download Citation

Surajit Roy, Ingolf Mueller, Vishnuvardhan Janapati, Samik Das, and Fu-Kuo Chang "Real-time prediction of impact-induced damage for composite structures based on failure analysis and efficient database methods", Proc. SPIE 8348, Health Monitoring of Structural and Biological Systems 2012, 83481L (20 April 2012); https://doi.org/10.1117/12.917528

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