Abdulla, Mohammed and Hrairi, Meftah and Aabid, Abdul and Abdullah, Nur Azam (2025) Finite element analysis of a repaired cracked aluminium plate with piezoelectric patches under mechanical and thermal loading. Journal of Advanced Research in Applied Sciences and Engineering Technology, 51 (1). pp. 171-183. E-ISSN 2462-1943
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Abstract
In thin plate structures, the use of piezoelectric actuators for active repairs can significantly decelerate the progression of crack damage. The prevalent mode-I fractures, wherein tension causes the opening displacement leading to failure, undermine the structural integrity required for load support. This current research endeavors to explore how piezoelectric (pzt) actuators influence the repair efficacy of fractured structures. The ANSYS software was harnessed to conduct the study, employing the finite element method. Additionally, the study delved into the repercussions of thermal heating and performed a parametric analysis to gauge their impact on the restoration efficiency of the compromised structure. The outcomes unveiled that the application of a negative electric field through the pzt actuator effectively diminishes the stress intensity factor (SIF) at the crack tip. Moreover, it was determined that thermal stresses contribute to a 57% augmentation in SIF, posing a heightened risk of structural failure. The study's deductions emphasize the desirability of utilizing a slender actuator alongside optimally adjusted adhesive thickness to attain a more pronounced reduction in SIF.
| Item Type: | Article (Journal) |
|---|---|
| Additional Information: | 4980/114675 |
| Uncontrolled Keywords: | Active repair; PZT actuator; stress intensity factor |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA349 Mechanics of engineering. Applied mechanics T Technology > TH Building construction > TH3301 Maintenance and repair T Technology > TJ Mechanical engineering and machinery > TJ212 Control engineering |
| Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): | Kulliyyah of Engineering Kulliyyah of Engineering > Department of Mechanical Engineering |
| Depositing User: | Prof. Dr. Meftah Hrairi |
| Date Deposited: | 26 Sep 2024 14:21 |
| Last Modified: | 26 Sep 2024 14:34 |
| URI: | http://irep.iium.edu.my/id/eprint/114675 |
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