研究目的
To investigate the electromechanical behavior of an angle-ply laminated plate with surface-bonded piezoelectric layers and viscoelastic interfaces, and to derive exact solutions for time-dependent responses.
研究成果
The present analysis provides exact solutions for time-dependent electromechanical responses with high efficiency and accuracy. Numerical results show that viscoelastic interfaces lead to significant changes in mechanical and electrical behaviors over time, potentially causing loss of load-bearing capacity and sensor/actuator function, highlighting the importance of considering interfacial properties in laminate design and applications.
研究不足
The analysis is limited to cylindrical bending and simply supported conditions. It assumes specific material models and may not account for all real-world imperfections or dynamic effects.
1：Experimental Design and Method Selection:
The study uses a state-space approach and matrix reduction method to analyze the electromechanical behavior. The Kelvin–Voigt viscoelastic model is employed to describe interfacial properties.
2：Sample Selection and Data Sources:
A symmetric three-layered isotropic strip and a five-layered angle-ply laminate with PVDF piezoelectric layers are considered, with specific material properties and lay-up configurations.
3：List of Experimental Equipment and Materials:
No specific equipment or materials are listed; the analysis is theoretical and numerical.
4：Experimental Procedures and Operational Workflow:
The methodology involves deriving state-space formulations, transfer matrices, and solving differential equations for sliding displacements. Numerical computations are performed, likely using software like MATLAB.
5：Data Analysis Methods:
Exact solutions are derived in the time domain, and numerical results are compared with existing techniques for validation.
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