MODELING STRESS OF SMART BEAM WITH THERMO-PIEZOELECTRIC EFFECTS | ||||
| The International Conference on Applied Mechanics and Mechanical Engineering | ||||
| Article 77, Volume 16, 16th International Conference on Applied Mechanics and Mechanical Engineering., May 2014, Page 1-24 PDF (272.65 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/amme.2014.35754 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| M. Adnan Elshafei; M. R. Ajala; A. M. Riad | ||||
| Egyptian Armed Forces. | ||||
| Abstract | ||||
| ABSTRACT In the present work, stress modeling using finite element technique is proposed to describe the response of laminated composite beam with piezoelectric actuators due to mechanical, electrical, and thermal loads. The assumed field displacements equations are represented by first-order shear deformation theory (FSDT), the Timoshenko beam theory. The equation of motion of the smart beam system is derived using the principle of minimum potential energy. A cubic shape function is used to represent the axial displacement u, a quadratic shape function for the transverse displacement w, where the normal rotation x f , electric potential j , and thermal temperature q are represented by a linear shape. A MATLAB code is developed to compute the static and stresses deformations of the structure system due to the thermal loads. The shear correction factor is used to improve the obtained results. The obtained results are compared to the available results of other investigators, good agreement is generally obtained. | ||||
| Keywords | ||||
| Finite element method; piezoelectric actuators; thermal stress; Timoshenko beam theory; smart composite structure | ||||
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