On wave propagation in piezoelectric-auxetic honeycomb-2D-FGM micro-sandwich beams based on modified couple stress and refined zigzag theories

Al-Furjan, M.S.H.; Xu, Mengting; Farrokhian, A.; Jafari, Gholamreza Soleimani; Shen, Xing; Kolahchi, Reza

doi:10.1080/17455030.2022.2030499

Cited by 36 publications

(4 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…19,20 The theoretical models encompass various factors or dimensions that affect the target. [21][22][23][24] For instance, Chu et al 25 obtained solutions to the equilibrium equation and dynamic equation of curved post-buckled laminated composite panels using Chebyshev collocation method. Hence, incorporating numerical analysis into the durability objective of FRP-reinforced concrete in salt-frost coupling erosion environments, a damage model is derived for prediction purposes.…”

Section: Introductionmentioning

confidence: 99%

Research on coupled erosion damage model of FRP bonded concrete beams subjected to Lemaitre assumption

Zou,

2023

Polymer Composites

View full text Add to dashboard Cite

In cold regions, the coupling of freeze–thaw cycles and sulfate frequently impairs the performance of FRP‐bonded concrete, resulting in a shortened service life. Carbon fiber polymer (CFRP) and glass fiber polymer (GFRP) are used to paste pre‐cracked concrete beams in the experiment, and three unfavorable environments are created: freeze–thaw cycle, 10% sulfate solution erosion, and coupling erosion. This paper investigates the durability performance of FRP bonded beams using microscopic, mechanical and dynamic modulus of elasticity tests, as well as post‐erosion damage values and finite element modeling. After 400 h of coupled erosion, sulphate erosion and freeze–thaw cyclic erosion environments, the strength of the CFRP bonded beams was reduced by 66.3%, 14.6% and 42.0% and the GFRP bonded beams by 67%, 21.9% and 52.3% respectively. The results show that single sulphate attack does not cause significant damage to the beams, but it can exacerbate the damage caused by freeze–thaw cycles. A coupled damage model based on the Lemaitre strain equivalence assumption predicted the actual coupled damage of the specimens. The finite element model can accurately predict the damage and strength of the bond surface under loading.Highlights The durability performance of CFRP and GFRP adhered pre‐cracked concrete beams Microscopic, mechanical, and dynamic elastic modulus tests are used Freeze–thaw erosion environment in 10% mass fraction sulphate solution Coupled damage models for coupled salt and freeze–thaw cycles are developed FRP‐reinforced pre‐cracked beams subjected to erosion are simulated with ABAQUS

show abstract

Section: Introductionmentioning

confidence: 99%

Research on coupled erosion damage model of FRP bonded concrete beams subjected to Lemaitre assumption

Zou,

2023

Polymer Composites

View full text Add to dashboard Cite

show abstract

“…Li et al established a theoretical model of sandwich composite cylindrical shells to investigate their nonlinear dynamic characteristics. [41][42][43] Reza Kolahchi et al [44][45][46][47][48][49][50][51][52] explored the preparation technology, tensile properties and dynamic characteristics of composite plate and beam structures, and the validity of the theoretical model is verified by numerical simulation and theoretical derivation.…”

Section: Introductionmentioning

confidence: 99%

Structural optimization to improve the dynamic performance of novel co‐curing damping sandwich composites

et al. 2023

View full text Add to dashboard Cite

Co‐cured damping composite structures have broad application prospects in high‐tech fields such as aerospace and space vehicles because of their low weight, large damping, and sufficient stiffness. In order to improve dynamic properties of conventional composite structures, a new type of damping composites embedded with multilayer viscoelastic film is proposed in this paper. Based on the complex modulus theory and vibration mechanics of composite plates and shells, vibration differential equation of composite plates with multilayer viscoelastic film is derived. The constitutive relation of the complex structure is established. The consistency of theoretical derivation and numerical simulation results provides a reference for the optimization of dynamic performance of damping sandwich composites. The effects of the distribution of viscoelastic film and the geometric structure parameters on dynamic performance of co‐cured damping composites are also discussed. The results show that the embedding of multi‐layer viscoelastic film can greatly enhance the loss factors of co‐cured composite structures under same damping layer thickness. This work lays a foundation for optimization of dynamic performance of lightweight and large damping composite structures.

show abstract

“…In order to achieve the governing equations related to analysis of the shells several theories can be employed which are generally divided to classical (for macro-scale analyses) and non-classical (for sizedependent micro/nano-scale analyses). The most famous non-classical theory is the modified couplestress theory which was employed in Dehrouyeh-Semnani and Mostafaei, 20 Dittrich et al, 21 and Al-Furjan et al 22 for analysis of micro-plates and microshells. The other popular non-classical theories for size-dependent analysis of nano structures are the nonlocal theory [23][24][25][26][27] and the strain gradient theory.…”

Section: Introductionmentioning

confidence: 99%

An analytical closed-form solution for free vibration and stability analysis of curved sandwich panels made of porous metal-foam core and nanocomposite reinforced face-sheets

Badarloo,

Salehipour

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

View full text Add to dashboard Cite

This paper aims to obtain an analytical solution for free vibration and stability analysis of shallow curved sandwich panels made of a porous metal-foam core and nanocomposites reinforced sheets resting on a Winkler-Pasternak elastic foundation. In this regard, two nanocomposites, carbon nanotubes (CNTs) and graphene nanoplatelets (GNPs) are considered for reinforcing the face-sheets. The governing equations are developed by considering the transversal shear strains based on the first-order shear deformation theory (FSDT). The obtained system of differential equations representing the dynamic equilibrium and compatibility of the proposed curved sandwich panels are solved analytically, using the principal of Galerkin method. In order to examine the results of developed formulation, some benchmark examples are adopted from the existing literature and the obtained results corresponding to the considered examples are compared with those are presented in the references. Using the achieved numerical results in the framework of a comprehensive parametric study, the effects of various material and geometrical factors and also various boundary conditions on the natural frequencies and buckling loads of the proposed sandwich panels are assessed. By performing the extensive parametric study it was observed that several results corresponding to the free vibration and stability of the proposed sandwich panels can be achieved by the present method without spending much time for computations. On the contrary, in order to achieve the similar results using the numerical methods, a time-consuming process is required which can justify the novelty of the present work.

show abstract

On wave propagation in piezoelectric-auxetic honeycomb-2D-FGM micro-sandwich beams based on modified couple stress and refined zigzag theories

Cited by 36 publications

References 47 publications

Research on coupled erosion damage model of FRP bonded concrete beams subjected to Lemaitre assumption

Research on coupled erosion damage model of FRP bonded concrete beams subjected to Lemaitre assumption

Structural optimization to improve the dynamic performance of novel co‐curing damping sandwich composites

An analytical closed-form solution for free vibration and stability analysis of curved sandwich panels made of porous metal-foam core and nanocomposite reinforced face-sheets

Contact Info

Product

Resources

About