Nonlinear axisymmetric free vibration of moderately thick FGM shallow spherical caps including porosities and meridional periphery constraint resting on nonlinear elastic foundations

Nguyen Van Thinh, Hoang Van Tung, Faculty of Civil Engineering, University of Transport Technology, Ha Noi, Viet Nam, Graduate University of Science and Technology, Vietnam Academy of Science and Technology, Ha Noi, Viet Nam, Faculty of Civil Engineering, Hanoi Architectural University, Ha Noi, Viet Nam

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering

Published online on May 21, 2026

Abstract

Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, Ahead of Print.
The main aim of this paper is to investigate the combined influences of porosity, initial geometric imperfection, nonlinear elastic foundations, tangential elastic constraint of boundary edge and elevated temperature on the nonlinear axisymmetric free ...