Nonlinear dynamic response and vibration of sandwich plates with nanotube-reinforced composite face sheets and FG porous core in thermal environments

• Main Author: Ngô, Đình Đạt
• Other Authors: Nguyen, Dinh Duc
• Format: Theses and Dissertations
• Language: English
• Published: 2020
• Subjects: Vật liệu Nano; Kỹ thuật hạ tầng; Nonlinear dynamic response ; sandwich plate ; FG porous ; thermal environment ; the Reddy’s higher order shear deformation theory; 621
• Online Access: http://repository.vnu.edu.vn/handle/VNU_123/93285
• Institution: Vietnam National University, Hanoi

This thesisanalytical solutions for the nonlinear dynamic response and vibration ofsandwich plates with FG porous homogeneous core and nanotube-reinforced composite face sheets integrated with piezoelectric layersin thermalenvironment. Assumingthat thecharacteristics of the platedepend on temperature and change consistent with the power functions of the plate thickness. Motion and compatibility equations are used to base on the Reddy’s higher-order shear deformation plate theory and consider the influenceof initial geometric imperfection and the thermal stress in the plate. Besides, the Galerkin method andRunge–Kutta methodare used to give clear expressionsfornonlinear dynamic responseand natural frequenciesof the sandwich plate. The influences of geometricalparameters, type of porositydistribution,initial imperfection, elastic foundation and temperature incrementonthenonlineardynamicresponse and vibrationofthick sandwich plateare demonstratedin detail.The results are reviewed with other authors in possible cases to checkthe reliability of the approach used.