Effect of piezoelectric actuator modeling for wave generation in LISA

The local interaction simulation approach (LISA), a finite difference based numerical method, has been proven to be efficient in modeling guided wave (GW) propagation in isotropic and composite laminated structures. Recently, the LISA framework has been augmented to incorporate the piezoelectric material directly in the formulation so to more accurately model the transducer effects in the GW generation. This paper presents a study to assess the importance of the actuation modeling from surface-mounted piezoelectric actuators in LISA. Actuation modeling includes the prescribed displacements (either in plane or out of plane) that are commonly found in the literature, as well as the direct modeling of the piezoelectric material of the actuator with prescribed electric potentials. The study is carried out both for isotropic and composite laminated substrates. Numerical and experimental results are used to characterize the quality of the actuator modeling options.

[1]  Pier Paolo Delsanto,et al.  Application of Lamb waves for the characterization of composite plates , 2008 .

[2]  W. Staszewski,et al.  Modelling of Lamb waves for damage detection in metallic structures: Part II. Wave interactions with damage , 2003 .

[3]  Douglas E. Adams,et al.  Accuracy and Convergence Using a Local Interaction Simulation Approach in One, Two, and Three Dimensions , 2009 .

[4]  P. Delsanto,et al.  Connection machine simulation of ultrasonic wave propagation in materials. I: the one-dimensional case , 1997 .

[5]  H. Tiersten.  Hamilton's principle for linear piezoelectric media , 1967 .

[6]  Carlos E. S. Cesnik,et al.  Review of guided-wave structural health monitoring , 2007 .

[7]  I. Genesio,et al.  Simulation of Lamb wave propagation for the characterization of complex structures , 2003, IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control.

[8]  Bc Lee,et al.  Lamb wave propagation modelling for damage detection: I. Two-dimensional analysis , 2007 .

[9]  Carlos E. S. Cesnik,et al.  Characterization of guided-wave propagation in composite plates , 2010, Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[10]  Douglas E. Adams,et al.  Modeling Guided Waves for Damage Identification in Isotropic and Orthotropic Plates Using a Local Interaction Simulation Approach , 2008 .

[11]  Carlos E. S. Cesnik,et al.  Local interaction simulation approach for modeling wave propagation in composite structures , 2013 .

[12]  Bc Lee,et al.  Modelling of Lamb waves for damage detection in metallic structures: Part I. Wave propagation , 2003 .

[13]  Carlos E. S. Cesnik,et al.  Producing accurate wave propagation time histories using the global matrix method , 2013 .

[14]  E. Crawley,et al.  Use of piezoelectric actuators as elements of intelligent structures , 1987 .

[15]  Carlos E. S. Cesnik,et al.  Simulation of Guided Wave Propagation in Isotropic and Composite Structures using LISA , 2012 .

[16]  Carlos E. S. Cesnik,et al.  Numerical simulation of wave propagation in composite plates , 2012, Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring.

[17]  Carlos E. S. Cesnik,et al.  Piezoelectric coupled LISA for guided wave generation and propagation , 2013, Smart Structures.