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Pre Conference Course

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Pre Conference Course
Health Monitoring Techniques: an overview

A one-day pre conference course, organized on Tuesday, the 9^th of July, gives a general overview on the various sensing techniques and data reduction procedures used for Structural Health Monitoring. This 8-hours course is given by researchers active in the field.

Course Schedule

Course Content

1. Introduction to Health Monitoring: context, problems, solutions

Fu-Kuo Chang (University of Stanford, USA)

Detail available soon

2. Vibration-Based Techniques for Structural Damage Assessment

Claus-Peter Fritzen (University of Siegen, Germany)

Introduction - Measurement data: time and frequency domain data, modal data - Model-based techniques: different types of models, definition of residuals - Damage identification: solution of the inverse problem, mathematical problems, parameter extraction - Examples: laboratory and real structures - Summary and conclusions

3. Optical Fibre Sensors

Alfredo Guemes (Polytechnic University of Madrid, Spain)

Introduction - Fibre Optic Sensors (FOS): classes of fibre optic sensors, examples of applicability of FOS - Fibre Bragg Grating (FBG) as strain and temperature sensors: sensitivity of FBG to uniform uniaxial strains, response of FBG to uniaxial strain gradients, response of FBG to transversal stresses, sensitivity of FBG to temperature - Structures with embedded FBG: Interaction of the sensor/host structure, influence of the coating, ingress/egress of the optical fibre from the laminate - Examples of aeronautics, naval and civil structures - Conclusion

4. Health Monitoring Systems for Composite Plates using Lamb Waves

Daniel Osmont (Onera, France)

Introduction - Lamb waves and piezoelectric discs: generating/sensing Lamb waves by means of piezoelectric discs, integration of discs on or into composite plates, modeling the plate/disc interaction, testing the quality of integration, testing the innocuity of integration - CFRP plates: Damages in CFRP plates induced by impacts, Lamb waves in CFRP plates, estimation of damages, monitoring of damages - Sandwich plates: damage in sandwich plates induced by impact, Lamb waves in sandwich plates, estimation of damages, monitoring of damages - Conclusion

5. Electrical Resistance and Damage Detection in CFRP

Michelle Salvia (Ecole Centrale de Lyon, France)

Introduction - Damage mechanism in CFRP - Influence of fibre volume fraction on electrical resistance - In situ monitoring of damage in CFRP using electrical resistance (UD and off-axis materials) - Comparison with other techniques - Conclusion

6. Low Frequency Electromagnetic Techniques

Michel Lemistre (Onera, France)

Introduction - Theory: electromagnetic behaviour of composite materials, conductive materials, dielectric materials - Applications: conductive materials, dielectric materials - Signal Processing: denoising, multiresolution - Application to health monitoring: conductive materials, dielectric materials - Conclusion

7. Radar and Capacitive Techniques in Civil Engineering

Xavier Derobert (LCPC, France)

Introduction - Theory: propagation of EM waves in dielectric materials, EM properties of lossy materials - Signal Processing: filtering, 2D and 3D processings - GPR Applications in civil engineering: geophysics, roads and pavements, bridges, environment, archaeology - Capacitive Technique: principle, applications - Conclusion

Registration

Registration rate for the Pre Conference Course is 180 Euros (students 90 Euros). This fee includes: access to the course, lunch and coffee-breaks, and a document with the full-content of the course.

For technical details, please contact Mr. Michel Lemistre (lemistre @ onera.fr)

For registration, please print the form (pdf document) and sent it with payment.

SHM 2002 web site content: Daniel.Balageas@onera.fr - webmaster:webmaster@onera.fr
Last updated: June 27, 2002

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