Nonlinear thermal vibration of eccentrically stiffened Ceramic-FGM-Metal layer toroidal shell segments surrounded by elastic foundation

http://repository.vnu.edu.vn/handle/VNU_123/27423

The eccentrically stiffened Ceramic-FGM-Metal layer toroidal shell segments which applied for heat-resistant, lightweight structures in aerospace, mechanical, and medical industry and so forth are the new structures.

Thus, the nonlinear vibration of eccentrically stiffened (ES) Ceramic-FGM-Metal (C-FGM-M) layer toroidal shell segments surrounded by an elastic medium in thermal environment is investigated in this paper.

Based on the classical shell theory with the geometrical nonlinear in von Karman-Donnell sense, Stein and McElman assumption and the smeared stiffeners technique, the governing equations of motion of ES-C-FGM-M layer toroidal shell segments are derived.

The dynamical characteristics of shells as natural frequencies, nonlinear frequency-amplitude relation, and nonlinear dynamic responses are considered.

Furthermore, the effects of characteristics of geometrical ratios, ceramic layer, elastic foun-dation, pre-loaded axial compression and temperature on the dynamical behavior of shells are studied

Title: 

	Nonlinear thermal vibration of eccentrically stiffened Ceramic-FGM-Metal layer toroidal shell segments surrounded by elastic foundation
Authors:	Dinh, Gia Ninh Dao, Huy Bich
Keywords:	Toroidal shell segments FGM core FGM sandwich shell Non-linear vibration Thermal environment
Issue Date:	2016
Publisher:	H. : ĐHQGHN
Citation:	ISIKNOWLEDGE
Abstract:	The eccentrically stiffened Ceramic-FGM-Metal layer toroidal shell segments which applied for heat-resistant, lightweight structures in aerospace, mechanical, and medical industry and so forth are the new structures. Thus, the nonlinear vibration of eccentrically stiffened (ES) Ceramic-FGM-Metal (C-FGM-M) layer toroidal shell segments surrounded by an elastic medium in thermal environment is investigated in this paper. Based on the classical shell theory with the geometrical nonlinear in von Karman-Donnell sense, Stein and McElman assumption and the smeared stiffeners technique, the governing equations of motion of ES-C-FGM-M layer toroidal shell segments are derived. The dynamical characteristics of shells as natural frequencies, nonlinear frequency-amplitude relation, and nonlinear dynamic responses are considered. Furthermore, the effects of characteristics of geometrical ratios, ceramic layer, elastic foun-dation, pre-loaded axial compression and temperature on the dynamical behavior of shells are studied
Description:	THIN-WALLED STRUCTURES Volume: 104 Pages: 198-210 ; TNS06427
URI:	http://repository.vnu.edu.vn/handle/VNU_123/27423
Appears in Collections:	Bài báo của ĐHQGHN trong Web of Science