Geometrically Nonlinear Transient Response of Functionally Graded Shell Panels with Initial Geometric Imperfection

被引：20

作者：

Pradyumna, S. ^{[1
]}

Nanda, Namita ^{[1
]}

机构：

[1] Indian Inst Technol Delhi, Dept Appl Mech, New Delhi 110016, India

来源：

MECHANICS OF ADVANCED MATERIALS AND STRUCTURES | 2013年 / 20卷 / 03期

关键词：

geometric imperfection; functionally graded materials; geometric nonlinearity; transient response; thermal environments; finite element method; FGM CYLINDRICAL-SHELLS; FREE-VIBRATION; DYNAMIC-RESPONSE; PLATES; SENSITIVITY;

D O I：

10.1080/15376494.2011.584148

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This article deals with the geometrically nonlinear transient response of functionally graded (FG) shell panels in thermal environments having initial geometric imperfection. The theoretical formulation considers Sanders' approximation for doubly curved shells and von Karman type nonlinear stresses are incorporated into the first order shear deformation theory. The material properties are assumed to be temperature dependent and graded in the thickness direction. The shell panels considered for the analysis are cylindrical (CYL), spherical (SPH), and hyperbolic paraboloid (HPR). Effects of material composition, imperfection, temperature field, and radius of curvature on the nonlinear transient response of FG shell panels are studied.

引用

页码：217 / 226

页数：10

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