Buckling analysis of a laminated composite plate with delaminations using the enhanced assumed strain solid shell element

This paper deals with numerical analyses of laminated composite plate and shell structures using a new four-node quadrilateral flat shell element, namely SQ4C, based on the first-order shear deformation theory (FSDT) and a combined strain strategy. The main notion of the combined strain strategy is based on the combination of the membrane strain and shear strain related to tying points as well as bending strain with respect to cell-based smoothed finite element method. Many desirable characteristics and the enforcement of the SQ4C element are verified and proved through various numerical examples in static, frequency and buckling analyses of laminated composite plate and shell structures. Numerical results and comparison with other reference solutions suggest that the present element is accuracy, efficiency and removal of shear and membrane locking.

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A stabilized underintegrated enhanced assumed strain solid-shell element for geometrically nonlinear plate/shell analysis

Finite Elements in Analysis and Design ◽

10.1016/j.finel.2011.01.001 ◽

2011 ◽

Vol 47 (5) ◽

pp. 511-518 ◽

Cited By ~ 14

Author(s):

L.M. Li ◽

Y.H. Peng ◽

D.Y. Li

Keyword(s):

Shell Element ◽

Geometrically Nonlinear ◽

Solid Shell ◽

Enhanced Assumed Strain ◽

Nonlinear Plate ◽

Assumed Strain ◽

Shell Analysis

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The formulation of a refined hybrid enhanced assumed strain solid shell element and its application to model smart structures containing distributed piezoelectric sensors/actuators

Smart Materials and Structures ◽

10.1088/0964-1726/13/4/n02 ◽

2004 ◽

Vol 13 (4) ◽

pp. N43-N50 ◽

Cited By ~ 29

Author(s):

Shijie Zheng ◽

Xinwei Wang ◽

Wanji Chen

Keyword(s):

Smart Structures ◽

Shell Element ◽

Piezoelectric Sensors ◽

Solid Shell ◽

Enhanced Assumed Strain ◽

Assumed Strain

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Dynamic Analysis for Structure With Composite Substructures and With Compatible and Incompatible Connections

Applied Mechanics ◽

10.1115/imece2006-14128 ◽

2006 ◽

Author(s):

Shaoluo L. Butler ◽

Anoop K. Dhingra

Keyword(s):

Composite Plate ◽

Laminated Composite ◽

Shell Element ◽

Laminated Composite Plate ◽

Different Types ◽

Coupling Equations ◽

Structural Assembly ◽

Complex Structural ◽

Sliding Joints ◽

Good Agreement

A complex structural assembly often includes components made of isotropic and anisotropic materials and includes components with complex connections such as bolted, riveted, welded, and sliding joints. This paper categorizes the connections into two types, compatible and incompatible interfaces, and their mathematical descriptions are presented. A substructure with composite plate/shell element is provided. An approach, incorporating substructure-component mode synthesis, considering compatible and incompatible interfaces and being capable of handling laminated composite plate/shell (SCMSCIC) is proposed. Coupling equations including laminated composite substructure and including different types of connections between substructures are developed. Examples have shown good agreement from SCMSCIC and entire structure analysis.

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