Numerical analysis of multi-layer composite plates with internal delamination

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.

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On the problems of nonhomogeneous and anisotropic elastic layer-composite plates

Vietnam Journal of Mechanics ◽

10.15625/0866-7136/10175 ◽

1994 ◽

Vol 16 (4) ◽

pp. 1-10

Author(s):

Dao Huy Bich

Keyword(s):

Experimental Data ◽

Elastic Layer ◽

Composite Plates ◽

Homogenization Method ◽

Effective Modulus ◽

Elastic Plates ◽

Dynamic Problems ◽

Layer Composite ◽

Material Behaviors ◽

Anisotropic Elastic

Using the homogenization method problems of nonhomogeneous and anisotropic elastic layer composite plates reduce to the problems of homogeneous and anisotropic elastic plates. The formulae of effective modulus theory determining material behaviors in this cases are given and can be checked by experimental data. Obtained results allow to analyze static and dynamic problems of composite plates by well - know methods.

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

10.24264/icams-2020.i.8 ◽

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.

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

Materials ◽

10.3390/ma12040598 ◽

2019 ◽

Vol 12 (4) ◽

pp. 598 ◽

Cited By ~ 6

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.

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