Finite element analysis of free vibration of the delaminated composite plate with variable kinematic multilayered plate elements

被引：37

作者：

Kumar, S. Keshava ^{[1
,2
]}

Cinefra, M. ^{[2
]}

Carrera, E. ^{[2
]}

Ganguli, Ranjan ^{[1
]}

Harursampath, Dineshkumar ^{[1
]}

机构：

[1] Indian Inst Sci, Dept Aerosp Engn, Bangalore 560012, Karnataka, India

[2] Politecn Torino, Dept Mech & Aerosp Engn, Turin, Italy

来源：

COMPOSITES PART B-ENGINEERING | 2014年 / 66卷

关键词：

Layered structures; Delamination; Finite Element Analysis (FEA); Plate; LAMINATED COMPOSITE; DYNAMIC-ANALYSIS; PREDICTION; BEAMS; LAYER;

D O I：

10.1016/j.compositesb.2014.05.031

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Composite laminates are prone to delamination. Implementation of delamination in the Carrera Unified Formulation frame work using nine noded quadrilateral MITC9 element is discussed in this article. MITC9 element is devoid of shear locking and membrane locking. Delaminated as well as healthy structure is analyzed for free mode vibration. The results from the present work are compared with the available experimental or/and research article or/and the three dimensional finite element simulations. The effect of different kinds and different percentages of area of delamination on the first three natural frequencies of the structure is discussed. The presence of open-mode delamination mode shape for large delaminations within the first three natural frequencies is discussed. Also, the switching of places between the second bending mode, with that of the first torsional mode frequency is discussed. Results obtained from different ordered theories are compared in the presence of delamination. Advantage of layerwise theories as compared to equivalent single layer theories for very large delaminations is stated. The effect of different kinds of delamination and their effect on the second bending and first torsional mode shape is discussed. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：453 / 465

页数：13

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