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A Semi-Analytical Layerwise Wave Propagation Model for Composite Strips with Piezoelectric Actuators and Sensors and Capabilities of Damage Detection
A Semi-Analytical Layerwise Wave Propagation Model for Composite Strips with Piezoelectric Actuators and Sensors and Capabilities of Damage Detection [1878]
Автор(ы): A.K. Barouni, D.A. Saravanov
Количество страниц: 8
Год: 2012
Аннотация[284 КБ] 
Код: 10906
Описание
6th European Workshop on Structural Health Monitoring. Dresden. Germany. 2012. Report. A semi-analytical solution for the propagation of guided waves generated by external forces and surface tractions due to piezoelectric actuators along a semi-infinite strip is presented. The paper proposes the use of the discrete layerwise theory for modeling the displacement field through the thickness of the strip and uses a double Fourier transform for the solution of the problem in the frequency-wavenumber domain. Solutions are first presented for a healthy strip with various laminate configurations. Subsequently, solutions for a damaged strip with various sizes of a delamination crack are shown and compared with the healthy response, in order to have an estimation of the effect of damage on the wave characteristics.
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