Structural Health Monitoring Based on Guided Waves

  • Daniel Schmidt
  • Wolfgang Hillger
  • Artur Szewieczek
  • Michael Sinapius
Part of the Research Topics in Aerospace book series (RTA)


Structural Health Monitoring (SHM) based on ultrasonic guided waves, so-called Lamb waves, is a promising method for in-service inspection of composite structures without time consuming scanning like conventional ultrasonic techniques. Lamb waves are able to propagate over large distances and can be easily excited and received by a network of piezoelectric actuators and sensors. In principle different kinds of structural defects can be detected and located by analyzing the sensor signals. The chapter describes recent research activities at DLR on Structural Health Monitoring. The research are focused on the visualisation of Lamb wave propagation fields based on air-coupled ultrasonic technique, the simulation of virtual sensors, mode selective actuators as well as manufacturing of actuator and sensor networks. Additionally, the chapter present the development of a SHM system for impact detection in a helicopter tailboom (Eurocopter—EC 135).


Frequency Response Function Structural Health Monitoring Lamb Wave Carbon Fiber Reinforce Plastic Virtual Sensor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Daniel Schmidt
    • 1
  • Wolfgang Hillger
    • 1
  • Artur Szewieczek
    • 1
  • Michael Sinapius
    • 1
  1. 1.Institute of Composite Structures and Adaptive SystemsGerman Aerospace Center DLRBraunschweigGermany

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