Three-Dimensional Structural Health Monitoring in Space Applications Using Laser Doppler Vibrometers

2008 ◽  
Author(s):  
Shannon Statham ◽  
Sathya Hanagud ◽  
Vinod Sharma ◽  
Brian Glass
Keyword(s):  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Three Dimensional ◽  
Laser Doppler ◽  
Space Applications ◽  
Structural Health

A Review of Laser Doppler Vibrometry for Structural Health Monitoring Applications

2012 ◽  
Vol 518 ◽  
pp. 1-15 ◽  
Author(s):  
Wieslaw Jerzy Staszewski ◽  
Ruztamreen bin Jenal ◽  
Andrzej Klepka ◽  
Mariusz Szwedo ◽  
Tadeusz Uhl
Keyword(s):  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Laser Doppler ◽  
Laser Doppler Vibrometry ◽  
Structural Health ◽  
Measuring Techniques ◽  
Monitoring Applications ◽  
Ultrasound Measurements ◽  
Out Of Plane ◽  
Optical Laser

Non-contact optical/laser measuring techniques are very attractive in many engineering applications. The paper demonstrates examples related to structural health monitoring. Various methods based on strain, vibration and ultrasound measurements are presented together with relevant references. Applications examples utilise in-plane and out-of-plane measurements taken by 1-D and 3-D laser Doppler vibrometers.

Structural Health Monitoring (SHM) of Three-Dimensional Braided Composite Material using Carbon Nanotube Thread Sensors

2013 ◽  
Vol 29 (4) ◽  
pp. 617-621 ◽  
Author(s):  
Z. Wan ◽  
J. D. Li ◽  
M. Jia ◽  
J. L. Li
Keyword(s):  
Composite Material ◽  
Carbon Nanotube ◽  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Smart Materials ◽  
Early Stage ◽  
Three Dimensional ◽  
Braided Composite ◽  
Structural Health ◽  
Smart Composite Materials

ABSTRACTStructural Health Monitoring (SHM) takes advantage of the recent advances in nanotechnology and sensing in order to monitor the behavior of a structure, assess its performance and identify damage at an early stage. Monitoring the state of strain throughout an entire structure is essential to determine its state of stress, detect potential residual stresses after fabrication, and also to help to establish its integrity. The Carbon nanotube thread was integrated into three-dimensional braiding materials and used for the first time as a sensor to monitor strain and also to detect damage in the three-dimensional braided composite material.In this paper a literature review about the application of carbon nanotubes thread for sensors and smart materials used for SHM of braiding structures is presented. The test data show the braided angle is important parameter for structural health monitoring of three-dimensional. The research will provide a new integrated and distributed technologies for the built-in carbon nanotube sensor to detect the health of composite. The subject will provide the new idea and method for the development of smart composite materials research and application.

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