Modeling of moisture diffusion in heterogeneous epoxy resin containing multiple randomly distributed particles using finite element method

In order to avoid the delamination of traditional tubular composite materials and reduce its woven cost, on an ordinary loom, the three-dimensional (3D) tubular woven fabrics were woven with basalt filament tows, and then the 3D tubular woven composites were prepared with epoxy resin by a hand layup process. The wall thickness of the 3D tubular woven composite was thin, and was only 2 mm thick. Through experiments and finite element method (FEM) simulation, the axial compression properties of the material were analyzed. The results show that the material 2 mm thick has good axial compression performance, the maximum load value of the experiment is 10,578 N, and the maximum load value of the finite element simulation is 11,285 N. The error between the two is 6.68%, indicating that the experiment and simulation have a good consistency. The failure mode of the material is also analyzed through finite element method simulation in the paper, thus revealing the failure stress propagation, local stress concentration, and failure morphology of the material. It provides an effective reference for the design and application of the 3D tubular woven composite.

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Experimental, Numerical, and Analytical Study on The Effect of Graphene Oxide in The Mechanical Properties of a Solvent-Free Reinforced Epoxy Resin

Polymers ◽

10.3390/polym11122115 ◽

2019 ◽

Vol 11 (12) ◽

pp. 2115 ◽

Cited By ~ 1

Author(s):

Sergio Horta Muñoz ◽

María del Carmen Serna Moreno ◽

José Miguel González-Domínguez ◽

Pablo Antonio Morales-Rodríguez ◽

Ester Vázquez

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Graphene Oxide ◽

Epoxy Resin ◽

Failure Modes ◽

Mechanical Response ◽

Solvent Free ◽

Image Correlation ◽

Analytical Technique ◽

Element Method

This paper presents a methodology for manufacturing nanocomposites from an epoxy resin reinforced with graphene oxide (GO) nanoparticles. A scalable and sustainable fabrication process, based on a solvent-free method, is proposed with the objective of achieving a high level of GO dispersion, while maintaining matrix performance. The results of three-point bending tests are examined by means of an analytical technique which allows determining the mechanical response of the material under tension and compression from flexural data. As result, an increase of 39% in the compressive elastic modulus of the nanocomposite is found with the addition of 0.3 wt % GO. In parallel, we described how the strain distribution and the failure modes vary with the amount of reinforcement based on digital image correlation (DIC) techniques and scanning electron microscopy (SEM). A novel analytical model, capable of predicting the influence of GO content on the elastic properties of the material, is obtained. Numerical simulations considering the experimental conditions are carried out. the full strain field given by the DIC system is successfully reproduced by means of the finite element method (FEM). While, the experimental failure is explained by the crack growth simulations using the eXtended finite element method (XFEM).

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Experimental and computational study on epoxy resin reinforced with micro‐sized OPEFB using rectangular waveguide and finite element method

IET Microwaves Antennas & Propagation ◽

10.1049/iet-map.2019.0085 ◽

2020 ◽

Vol 14 (8) ◽

pp. 752-758 ◽

Cited By ~ 2

Author(s):

Ahmad Mamoun Khamis ◽

Zulkifly Abbas ◽

Ahmad F. Ahmad ◽

Raba'ah Syahidah Azis ◽

Daw M. Abdalhadi ◽

...

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Epoxy Resin ◽

Rectangular Waveguide ◽

Computational Study ◽

Element Method

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Simulation of tuning graphene plasmonic behaviors by ferroelectric domains for self-driven infrared photodetector applications

Nanoscale ◽

10.1039/c9nr06508c ◽

2019 ◽

Vol 11 (43) ◽

pp. 20868-20875 ◽

Cited By ~ 1

Author(s):

Junxiong Guo ◽

Yu Liu ◽

Yuan Lin ◽

Yu Tian ◽

Jinxing Zhang ◽

...

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Interfacial Effect ◽

Infrared Photodetector ◽

The Finite Element Method ◽

Ferroelectric Domains ◽

Element Method

We propose a graphene plasmonic infrared photodetector tuned by ferroelectric domains and investigate the interfacial effect using the finite element method.

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