Nonlinear transient analysis of functionally graded sandwich spherical shells subjected to blast loading in the thermal environment

oleh: Ngoc-Tu Do, Pham Binh Le, Trung Thanh Tran, Quoc Hoa Pham

Format: Article
Diterbitkan: Elsevier 2023-12-01

Deskripsi

The main goal of this paper is to analyze the nonlinear transient of FGSS shells subjected to blast loading in a thermal environment using the MITC4 based on FSDT. The MITC4 originates from a three-dimensional continuum description degenerated to shell behaviour which can be applied to both thick and thin shells. The FGSS shell is composed of a metal core sandwiched between two FGM skin layers. In this research, we address the impact of geometrical nonlinearity arising from mid-plane stretching, specifically emphasizing the von Kármán geometrical nonlinearity. The results obtained from the proposed method are very agreement with the results in available works in the literature. Moreover, a thorough investigation into the nonlinear transient of FGSS shells is conducted, exploring the complete impact of various input parameters.