Hybrid electrical shock response of functionally graded piezoelectric plates in aerospace structures
AEROSPACE SCIENCE AND TECHNOLOGY, cilt.179, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 179
- Basım Tarihi: 2026
- Doi Numarası: 10.1016/j.ast.2026.113452
- Dergi Adı: AEROSPACE SCIENCE AND TECHNOLOGY
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, INSPEC, zbMATH, Academic Search Ultimate (EBSCO), Engineering Source (EBSCO)
- Recep Tayyip Erdoğan Üniversitesi Adresli: Evet
Özet
The quick evolution of aerospace technology demands an intelligent structure that can concurrently possess lightweight properties, active vibration control capability, and energy harvesting ability. In this paper, an innovative approach is developed for analyzing the electrical shock response of functionally graded piezoelectric (FGP) plates made of PZT-5A and PZT-4 under arbitrary electrical excitations. In this regard, a new version of the higher-order shear deformation theory (HSDT) using a logarithmic law is developed to consider the threedimensional nature of deformation and transverse shear strain without any artificial correction factor. The coupled equations are obtained by incorporating Maxwell's equation along with mechanical equilibrium equations by using Hamilton's principle. A practical hybrid voltage excitation, comprised of an instantaneous electrical shock and a harmonic, is considered for the study of both transient and frequency-dependent electromechanical responses. The governing equations are solved numerically using the differential quadrature technique, and the response due to the forced vibration is derived via the inverse Laplace transform. Detailed numerical analysis reveals that the gradation in material properties, electrical excitation, and the nature of the boundary conditions greatly influence the stress field, deformation response, and electrical field response along the thickness direction. It has been found that the optimal functionally graded structure decreases the deformation response by up to 50-65%, retaining the effectiveness of electromechanical coupling performance. The present study not only shows the validity of the theoretical model but also shows the transition of the response from the electrical shock to the harmonic vibration state.