The Effect of Nanoparticles in Single Lap Joints Studied by Numerical Analyses

Charitidis, Panagiotis J.

doi:10.24018/ejers.2020.5.10.2194

Cited by 4 publications

(2 citation statements)

References 47 publications

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“…The adhesive obtained with silicate nanoparticles added to the epoxy resin at the rates of 0.5%, 1%, 1.5% and 2% by weight was used in aluminum joints to provide light and high strength. The effects of silicate nanoparticles were observed in peeling and shear stresses (Charitidis, 2020). In experimental studies using two different nanoparticles, single lap and hybrid bonding joints were investigated.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Nano Graphene Reinforcement on Pin and Adhesively Bonded Sandwich Composite Structures

USLU UYSAL

2023

EPSTEM

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The subject of joining composite parts in important issue in a wide range of engineering applications. Currently mechanically-fastened and adhesively bonded joints are the two established and accepted techniques of joining used in aerospace industry for assembling composite structures. More effective adhesively bonded joints can be achieved by increasing the chemical properties of the adhesive. In this paper, nano graphene particles were added adhesive in various proportions (0.5%wt., 1%wt. and 1.5%wt.) to increase the mechanical strength of the pin and adhesively bonded (hybrid, bolted/bonded) sandwich composite structures. The mechanical properties of the newly produced nano graphene added adhesives were determined experimentally. Sandwich composite structure hybrid models with holes were created using finite elements method. The two dimensional plane strain and three dimensional analyses have been carried out. Effect of the nano graphene reinforced and hybrid structures to the all displacements were discussed on tensile property of the sandwich structures. The sensitivity of mechanical response to the compressibility of the adhesive material has been demonstrated. Numerical analysis of nano graphene reinforced hybrid joints show their strength life is longer than corresponding adhesively bonded/bolted joints Furthermore, hybrid joints can modify the tensioncompression area distribution at the side of the bolt hole, thus making composite material participate more in the load bearing. This is reflected in the increased bolt hole strain and better structural performance.

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Section: Introductionmentioning

confidence: 99%

The Effect of Nano Graphene Reinforcement on Pin and Adhesively Bonded Sandwich Composite Structures

USLU UYSAL

2023

EPSTEM

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“…It is understood that the presence of MWCNTs and nanosilica increases the barrier resistance due to better packing, making the path for corrosive electrolytes lengthier and complex. Nevertheless, at high percentage, there could be inappropriate dispersion, leading to a loss of resistivity of the coating or lack of adhesion to the metal surface [36,37].…”

Section: Introductionmentioning

confidence: 99%

Nonporous, Strong, Stretchable, and Transparent Electrospun Aromatic Polyurea Nanocomposites as Potential Anticorrosion Coating Films

et al. 2021

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This study, for the first time, focused on the fabrication of nonporous polyurea thin films (~200 microns) using the electrospinning method as a novel approach for coating applications. Multi-walled carbon nanotubes (MWCNTs) and hydrophilic-fumed nanosilica (HFNS) were added separately into electrospun polyurea films as nano-reinforcing fillers for the enhancement of properties. Neat polyurea films demonstrated a tensile strength of 14 MPa with an elongation of 360%. At a loading of 0.2% of MWCNTs, the highest tensile strength of 21 MPa and elongation of 402% were obtained, while the water contact angle remained almost unchanged (89°). Surface morphology analysis indicated that the production of polyurea fibers during electrospinning bonded together upon curing, leading to a nonporous film. Neat polyurea exhibited high thermal resistance with a degradation temperature of 380 °C. Upon reinforcement with 0.2% of MWCNTs and 0.4% of HFNS, it increased by ~7 °C. The storage modulus increased by 42 MPa with the addition of 0.2% of MWCNTs, implying a superior viscoelasticity of polyurea nanocomposite films. The results were benchmarked with anti-corrosive polymer coatings from the literature, revealing that the production of nonporous polyurea coatings with robust strength, elasticity, and thermal properties was achieved. Electrospun polyurea coatings are promising candidates as flexible anti-corrosive coatings for heat exchanges and electrical wires.

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Performance of various fillers in adhesives applications: a review

Sanghvi

Tambare

2022

Polym. Bull.

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The Effect of Nanoparticles in Single Lap Joints Studied by Numerical Analyses

Cited by 4 publications

References 47 publications

The Effect of Nano Graphene Reinforcement on Pin and Adhesively Bonded Sandwich Composite Structures

The Effect of Nano Graphene Reinforcement on Pin and Adhesively Bonded Sandwich Composite Structures

Nonporous, Strong, Stretchable, and Transparent Electrospun Aromatic Polyurea Nanocomposites as Potential Anticorrosion Coating Films

Performance of various fillers in adhesives applications: a review

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