scholarly journals A Finite Element Model for Dynamic Analysis of Triple-Layer Composite Plates with Layers Connected by Shear Connectors Subjected to Moving Load

Materials ◽  
2019 ◽  
Vol 12 (4) ◽  
pp. 598 ◽  
Author(s):  
Hoang-Nam Nguyen ◽  
Tan-Y. Nguyen ◽  
Ke Tran ◽  
Thanh Tran ◽  
Truong-Thinh Nguyen ◽  
...  
Keyword(s):  
Finite Element ◽  
Moving Load ◽  
Composite Plates ◽  
Element Model ◽  
Layered Composite ◽  
Ship Building ◽  
Shear Connectors ◽  
Composite Layers ◽  
Layer Composite ◽  
Mindlin’S Theory

Triple-layered composite plates are created by joining three composite layers using shear connectors. These layers, which are assumed to be always in contact and able to move relatively to each other during deformation, could be the same or different in geometric dimensions and material. They are applied in various engineering fields such as ship-building, aircraft wing manufacturing, etc. However, there are only a few publications regarding the calculation of this kind of plate. This paper proposes novel equations, which utilize Mindlin’s theory and finite element modelling to simulate the forced vibration of triple-layered composite plates with layers connected by shear connectors subjected to a moving load. Moreover, a Matlab computation program is introduced to verify the reliability of the proposed equations, as well as the influence of some parameters, such as boundary conditions, the rigidity of the shear connector, thickness-to-length ratio, and the moving load velocity on the dynamic response of the composite plate.

Finite element model for bolted shear connectors in concrete-filled steel tubular columns

2020 ◽  
Vol 203 ◽  
pp. 109863 ◽  
Author(s):  
Lucas Ribeiro dos Santos ◽  
Hermano de Sousa Cardoso ◽  
Rodrigo Barreto Caldas ◽  
Lucas Figueiredo Grilo
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Element Model ◽  
Tubular Columns ◽  
Shear Connectors

A New Rectangular Plate Element for Vibration Analysis of Laminated Composites

1998 ◽  
Vol 120 (1) ◽  
pp. 80-86 ◽  
Author(s):  
Guan-Liang Qian ◽  
Suong V. Hoa ◽  
Xinran Xiao
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Rectangular Plate ◽  
Degrees Of Freedom ◽  
Mass Matrix ◽  
Shear Deformation Theory ◽  
Composite Plates ◽  
Element Model ◽  
Higher Order ◽  
Transverse Displacement

In this paper, a higher order rectangular plate bending element based on a Higher Order Shear Deformation Theory (HSDT) is developed. The element has 4 nodes and 20 degrees of freedom. The transverse displacement is interpolated by using an optimized interpolation function while the additional rotation degrees of freedom are approximated by linear Lagrange interpolation. The consistent element mass matrix is used. A damped element is introduced to the finite element model. The proposed FEM is used to calculate eigenfrequencies and modal damping of composite plates with various boundary conditions and different thicknesses. The results show that the present FEM gives excellent results when compared to other methods and experiment results, and is efficient and reliable for both thick and thin plates. The proposed finite element model does not lock in the thin plate situation and does not contain any spurious vibration mode, and converges rapidly. It will provide a good basis for the inverse analysis of vibration of a structure.

scholarly journals Active Constrained Layer Damping of Smart Skew Laminated Composite Plates Using 1–3 Piezoelectric Composites

2013 ◽  
Vol 2013 ◽  
pp. 1-17 ◽  
Author(s):  
R. M. Kanasogi ◽  
M. C. Ray
Keyword(s):  
Finite Element ◽  
Finite Element Model ◽  
Laminated Composite ◽  
Composite Plates ◽  
Element Model ◽  
Constrained Layer Damping ◽  
Laminated Composite Plates ◽  
Piezoelectric Composites ◽  
Active Constrained Layer Damping ◽  
Active Constrained Layer

This paper deals with the analysis of active constrained layer damping (ACLD) of smart skew laminated composite plates. The constraining layer of the ACLD treatment is composed of the vertically/obliquely reinforced 1–3 piezoelectric composites (PZCs). A finite element model has been developed for accomplishing the task of the active constrained layer damping of skew laminated symmetric and antisymmetric cross-ply and antisymmetric angle-ply composite plates integrated with the patches of such ACLD treatment. Both in-plane and out-of-plane actuations by the constraining layer of the ACLD treatment have been utilized for deriving the finite element model. The analysis revealed that the vertical actuation dominates over the in-plane actuation. Particular emphasis has been placed on investigating the performance of the patches when the orientation angle of the piezoelectric fibers of the constraining layer is varied in the two mutually orthogonal vertical planes. Also, the effects of varying the skew angle of the substrate laminated composite plates and different boundary conditions on the performance of the patches have been studied. The analysis reveals that the vertically and the obliquely reinforced 1–3 PZC materials should be used for achieving the best control authority of ACLD treatment, as the boundary conditions of the smart skew laminated composite plates are simply supported and clamped-clamped, respectively.

Vibration analysis of bi-stable composite cross-ply laminates using refined shape functions

2016 ◽  
Vol 51 (8) ◽  
pp. 1135-1148 ◽  
Author(s):  
A Firouzian-Nejad ◽  
S Ziaei-Rad ◽  
M Moore
Keyword(s):  
Finite Element ◽  
Composite Plates ◽  
Approximate Solutions ◽  
Element Model ◽  
Dynamic Responses ◽  
The Finite Element Method ◽  
Shape Functions ◽  
Design Modification ◽  
Qualitative And Quantitative ◽  
Applied Forces

In this article, static and dynamic responses of cross-ply bi-stable composite plates were studied. To accurately predict the natural frequencies and snap-through load, a set of higher order shape functions were proposed. In static analysis, the stable configurations, the deflection of corners, and the midpoint of the plate were calculated. For dynamic analysis, Hamilton’s principle is used to provide approximate solutions to the vibration problem under study. The responses of the plate under ramp and harmonic applied forces were determined, the effect of shape functions on the prediction of the first natural frequency of the plate and the required force for snap-through were investigated. A finite element model is also developed to study the static and vibration characteristics of bi-stable composite plate. The qualitative and quantitative comparisons between the finite element method results and those obtained from the present analysis are generally good and satisfactory. The developed analytical model can also be used for parametric study and further design modification.

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