Fully coupled electromechanical elastodynamic model for guided wave propagation analysis

Luke Borkowski, Kuang Liu, Aditi Chattopadhyay

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Physics-based computational models play a key role in the study of wave propagation for structural health monitoring (SHM) and the development of improved damage detection methodologies. Due to the complex nature of guided waves (GWs), accurate and efficient computation tools are necessary to investigate the mechanisms responsible for dispersion, coupling, and interaction with damage. In this paper, a fully coupled electromechanical elastodynamic model for wave propagation in a heterogeneous, anisotropic material system is developed. The final framework provides the full three dimensional displacement and electrical potential fields for arbitrary plate and transducer geometries and excitation waveform and frequency. The model is validated theoretically and proven computationally efficient. Studies are performed with surface bonded piezoelectric sensors to gain insight into the physics of experimental techniques used for SHM. Collocated actuation of the fundamental Lamb wave modes is modeled over a range of frequencies to demonstrate mode tuning capabilities. The effect of various actuation types commonly used in numerical wave propagation models on Lamb wave speed are studied and compared. Since many studies, including the ones investigated in this paper, are difficult to perform experimentally, the developed model provides a valuable tool for the improvement of SHM techniques.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
Volume8695
DOIs
StatePublished - 2013
EventSPIE Conference on Health Monitoring of Structural and Biological Systems 2013 - San Diego, CA, United States
Duration: Mar 11 2013Mar 14 2013

Other

OtherSPIE Conference on Health Monitoring of Structural and Biological Systems 2013
CountryUnited States
CitySan Diego, CA
Period3/11/133/14/13

Fingerprint

elastodynamics
Guided Waves
Guided electromagnetic wave propagation
Elastodynamics
Wave propagation
Wave Propagation
wave propagation
Health Monitoring
structural health monitoring
Structural health monitoring
Lamb Waves
Lamb waves
actuation
Surface waves
Physics
Piezoelectric Sensor
Anisotropic Material
Damage Detection
Potential Field
Wave Speed

Keywords

  • Collocated actuation
  • Electromechanical coupling
  • Guided wave
  • Lamb wave
  • Mode tuning
  • Numerical wave propagation modeling
  • Structural health monitoring

ASJC Scopus subject areas

  • Applied Mathematics
  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Borkowski, L., Liu, K., & Chattopadhyay, A. (2013). Fully coupled electromechanical elastodynamic model for guided wave propagation analysis. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 8695). [86951W] https://doi.org/10.1117/12.2009529

Fully coupled electromechanical elastodynamic model for guided wave propagation analysis. / Borkowski, Luke; Liu, Kuang; Chattopadhyay, Aditi.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8695 2013. 86951W.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Borkowski, L, Liu, K & Chattopadhyay, A 2013, Fully coupled electromechanical elastodynamic model for guided wave propagation analysis. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 8695, 86951W, SPIE Conference on Health Monitoring of Structural and Biological Systems 2013, San Diego, CA, United States, 3/11/13. https://doi.org/10.1117/12.2009529
Borkowski L, Liu K, Chattopadhyay A. Fully coupled electromechanical elastodynamic model for guided wave propagation analysis. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8695. 2013. 86951W https://doi.org/10.1117/12.2009529
Borkowski, Luke ; Liu, Kuang ; Chattopadhyay, Aditi. / Fully coupled electromechanical elastodynamic model for guided wave propagation analysis. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 8695 2013.
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