Study on dynamic characteristics of smart composite laminates with partially debonded piezoelectric actuator

The dynamic characteristics of smart composite laminates with partially debonded piezoelectric actuator are investigated in this work. The proposed work introduces an improved layerwise theory based mathematical modeling with the Heaviside unit step functions to allow the possible sliding of the in-plane displacements and jump of the out-of-plane displacements for the debonded area. The finite element implementation is conducted using the four-node plate element to derive the governing equation. The dynamic characteristics are investigated by the frequency domain and time domain. The influence of actuator debonding to the natural frequencies is subtler for such kind of smart composite structures. The debonding of piezoelectric actuator also decreases its actuation ability that is reflected in the magnitudes of the system response. The proposed method can well predict the responses of the smart composite laminates with actuator debonding failures and it could be applied to the further damage detection methods.

[1]  Aditi Chattopadhyay,et al.  Modeling of adaptive composites including debonding , 1999 .

[2]  Anindya Ghoshal,et al.  Dynamic Analysis of Composite Laminates with Multiple Delamination Using Improved Layerwise Theory , 2003 .

[3]  Anindya Ghoshal,et al.  Development of Embedded Sensor Models in Composite Laminates for Structural Health Monitoring , 2004 .

[4]  Inderjit Chopra,et al.  Review of State of Art of Smart Structures and Integrated Systems , 2002 .

[5]  Tadashige Ikeda,et al.  Active vibration control of smart plates with partially debonded multilayered PZT actuators , 2007 .

[6]  S. K. Sahu,et al.  Free vibration analysis of delaminated composite shells using different shell theories , 2012 .

[7]  Anindya Ghoshal,et al.  Characterization of delamination effect on composite laminates using a new generalized layerwise approach , 2003 .

[8]  R. P. Shimpi,et al.  A Review of Refined Shear Deformation Theories of Isotropic and Anisotropic Laminated Plates , 2002 .

[9]  M. Izadi,et al.  Analysis of interlaminar stresses in general cross-ply laminates with distributed piezoelectric actuators , 2010 .

[10]  Satya N. Atluri,et al.  Effects of piezoelectric sensor/actuator debonding on vibration control of smart beams , 2001 .

[11]  Paolo Gaudenzi,et al.  Multi-layer higher-order finite elements for the analysis of free-edge stresses in piezoelectric actuated laminates , 2003 .

[12]  Anindya Ghoshal,et al.  Effect of delamination on transient history of smart composite plates , 2003 .

[13]  Santosh Kapuria,et al.  Efficient modeling of smart piezoelectric composite laminates: a review , 2010 .