Effect of ply orientation on the in-plane vibration of single-layer composite plates

2008 ◽  
Vol 312 (1-2) ◽  
pp. 94-108 ◽  
Author(s):  
Roland L. Woodcock ◽  
Rama B. Bhat ◽  
Ion G. Stiharu
Keyword(s):  
Single Layer ◽  
Composite Plates ◽  
Plane Vibration ◽  
Layer Composite ◽  
Ply Orientation

scholarly journals Approaches to the evaluation of the mechanical properties of single-layer composite plates made of recyclable polymeric and protein materials

2020 ◽  
Author(s):  
Ion Durbaca ◽  
Radu Iatan ◽  
Elena Surdu ◽  
Dana-Claudia Farcas-Flamaropol
Keyword(s):  
Composite Material ◽  
Mechanical Characteristics ◽  
Single Layer ◽  
Composite Plates ◽  
Structural Elements ◽  
Efficient Design ◽  
Protein Matrix ◽  
Layer Composite ◽  
Definition Of

This paper deals with the theoretical and experimental mechanical characteristics of composite plates obtained from recyclable polymer and protein matrix and fibrous reinforcement. The definition of the theoretical model of the monolayer composite material with its structural elements and the physical-mechanical evaluation of its characteristics leads to the optimal and efficient design and use of all products made of such materials. By the theoretical and experimental determination of the mechanical characteristics that define the properties of the composite material, it can be decided on its use in specific industrial technical applications.

Anisotropy of electromechanical parameters of a single-layer composite of the piezoceramic - polymer system

2021 ◽  
Vol 575 (1) ◽  
pp. 29-32
Author(s):  
D. I. Makarev ◽  
N. A. Shvetsova ◽  
A. N. Reznichenko ◽  
M. A. Lugovaya
Keyword(s):  
Polymer System ◽  
Single Layer ◽  
Layer Composite

Numerical analysis of multi-layer composite plates with internal delamination

2004 ◽  
Vol 82 (7-8) ◽  
pp. 627-637 ◽  
Author(s):  
L.H. Yam ◽  
Z. Wei ◽  
L. Cheng ◽  
W.O. Wong
Keyword(s):  
Numerical Analysis ◽  
Composite Plates ◽  
Layer Composite

Effect of Delamination on Natural Frequencies of E-glass and S-glass Epoxy Composite Plates

2021 ◽  
Author(s):  
P. K. Karsh ◽  
Bindi Thakkar ◽  
R. R. Kumar ◽  
Abhijeet Kumar ◽  
Sudip Dey
Keyword(s):  
Natural Frequencies ◽  
Epoxy Composite ◽  
Orientation Angle ◽  
Laminated Composite ◽  
Composite Plates ◽  
Mode Shapes ◽  
Transverse Shear Deformation ◽  
The Finite Element Method ◽  
Modes Of Failure ◽  
Ply Orientation

The delamination is one of the major modes of failure occurring in the laminated composite due to insufficient bonding between the layers. In this paper, the natural frequencies of delaminated S-glass and E-glass epoxy cantilever composite plates are presented by employing the finite element method (FEM) approach. The rotary inertia and transverse shear deformation are considered in the present study. The effect of parameters such as the location of delamination along the length, across the thickness, the percentage of delamination, and ply-orientation angle on first three natural frequencies of the cantilever plates are presented for S-glass and E-glass epoxy composites. The standard eigenvalue problem is solved to obtain the natural frequencies and corresponding mode shapes. First three mode shape of S-Glass and E-Glass epoxy laminated composites are portrayed corresponding to different ply angle of lamina.

scholarly journals Coupled vibrations of viscoelastic three-layer composite plates. 1. Formulation of problem

2020 ◽  
Vol 65 (3) ◽  
pp. 469-480
Author(s):  
Victor M. Ryabov ◽  
◽  
Boris A. Yartsev ◽  
Ludmila V. Parshina ◽  
◽  
...  
Keyword(s):  
Composite Plates ◽  
Coupled Vibrations ◽  
Layer Composite

Thermomechanical Buckling of Laminated Composite Plates Using Mixed, Higher-Order Analytical Formulation

2002 ◽  
Vol 69 (6) ◽  
pp. 790-799 ◽  
Author(s):  
J. B. Dafedar ◽  
Y. M. Desai
Keyword(s):  
Strain Tensor ◽  
Single Layer ◽  
Laminated Composite ◽  
Composite Plates ◽  
Higher Order ◽  
Laminated Composite Plates ◽  
Individual Layer ◽  
Energy Principle ◽  
Transverse Stresses ◽  
Benchmark Solutions

A novel, analytical mixed theory based on the potential energy principle has been presented in this paper to investigate buckling response of laminated composite plates subjected to mechanical and hygrothermal loads. Two sets of higher-order mixed models have been proposed on the basis of an individual layer as well as equivalent single layer theories by selectively incorporating nonlinear components of Green’s strain tensor. Displacements, as well as transverse stress continuities, have been enforced in the formulation of models by incorporating displacements and transverse stresses as the degrees-of-freedom. The modal transverse stresses have been obtained as eigenvectors and thus their separate calculations have been advantageously avoided. Solutions from the models have been shown to be in excellent agreement with the available three-dimensional elasticity solutions. Few benchmark solutions have also been presented for the bi-axial compression-tension loading.

Analysis of three-layer composite plates with a new higher-order layerwise formulation

2014 ◽  
Vol 21 (3) ◽  
pp. 401-404
Author(s):  
Dalal A. Maturi ◽  
Antonio J.M. Ferreira ◽  
Ashraf M. Zenkour ◽  
Daoud S. Mashat
Keyword(s):  
Composite Plates ◽  
Order Theory ◽  
Higher Order ◽  
Basis Functions ◽  
Numerical Accuracy ◽  
First Order ◽  
The Core ◽  
First Order Theory ◽  
Layer Composite ◽  
Vibration Problems

AbstractIn this paper, we combine a new higher-order layerwise formulation and collocation with radial basis functions for predicting the static deformations and free vibration behavior of three-layer composite plates. The skins are modeled via a first-order theory, while the core is modeled by a cubic expansion with the thickness coordinate. Through numerical experiments, the numerical accuracy of this strong-form technique for static and vibration problems is discussed.

Bending of Laminated Composite Plates

2015 ◽  
Vol 725-726 ◽  
pp. 667-673 ◽  
Author(s):  
Marina Rakočević ◽  
Nikolay Vatin
Keyword(s):  
Cross Section ◽  
Numerical Models ◽  
Single Layer ◽  
Laminated Composite ◽  
Composite Plates ◽  
Layered Composite ◽  
Laminated Composite Plates ◽  
Layerwise Theory ◽  
Geometrical Characteristics ◽  
Laminate Theory

In this work, there are presented overviews of theoretical and numerical models for defining the stress-strain state in the cross section of moderately thick and thick composite plates in case of bending. Layered composite plates are constructed by combination of layers of various materials and geometrical characteristics, wherein each of them has got a bearing capacity in previously defined directions. By applying Equivalent Single-layer Laminate Theory (or ESL theory) these layers' problems cannot be solved successfully. That is the reason to apply contemporary theories of plates, in literature known as Layerwise theories. At the end of this work, there are given numeric examples of applying Partial Layerwise Theory.

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