Computational Homogenization of Mechanical Properties for Laminate Composites Reinforced with Thin Film Made of Carbon Nanotubes

Moumen, A. El; Tarfaoui, Mostapha; Lafdi, Khalid

doi:10.1007/s10443-017-9636-2

Cited by 40 publications

(23 citation statements)

References 50 publications

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“…The sample was homogenized as an orthotropic elastic behavior. The mechanical properties and strength parameters of Carbon fibers/Epoxy-CNTs composites used for the damage modeling were given in our previous works focuses on the homogenization of laminates composites based CNTs, see literature [15][16][17][18] and listed in Tables 1 and 2, respectively. CZM damage model discussed was used to describe the damage initiation and propagation in laminated composites with CNTs. The orthotropic elastic moduli and the strain energy release rate (modes I, II, and III) for CZM were given.…”

Section: Materials Parameters and Specimensmentioning

confidence: 99%

Inter laminar failure behavior in laminate carbon nanotubes-based polymer composites

Tarfaoui

Moumen

Lafdi

et al. 2018

Journal of Composite Materials

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Delamination progressive in carbon nanotubes reinforced composites under applied Short Beam Shear test was studied. Experimental characterization was carried out using ASTM D2344 standard norms for different carbon nanotubes mass fractions ranging from 0 to 4%. Failure modes and the delamination were experimentally characterized by scanning electron microscopy and Kayence microscopy to assess the failure behavior. The numerical model was created under ABAQUS software based on the cohesive zone models. The numerical model was formulated according to the damage mechanics. In these models, the cohesive interaction was implanted between elements of each fabric ply to control the initiation and the propagation of the delamination for different carbon nanotubes fractions. The force–displacement curves vs. carbon nanotubes added were obtained for the numerical model and shown to be in good agreement with the experimental data. The effect of carbon nanotubes on the progressive delamination was elucidated.

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Section: Materials Parameters and Specimensmentioning

confidence: 99%

Inter laminar failure behavior in laminate carbon nanotubes-based polymer composites

Tarfaoui

Moumen

Lafdi

et al. 2018

Journal of Composite Materials

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“…To the author’s knowledge, a little information is available in the open literature concerning the dynamic behavior of laminates reinforced with thin films based on random distribution of CNTs. It has been shown in several works that the mechanical performance of polymer composites reinforced with CNTs can be superior with respect to those made of neat composites in terms of tensile strength and tensile properties 14–17 and strain to failure. 18,19…”

Section: Introductionmentioning

confidence: 99%

Mechanical behavior of carbon nanotubes-based polymer composites under impact tests

Moumen

Tarfaoui

Benyahia

et al. 2018

Journal of Composite Materials

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This study was focused on the effect of carbon nanotubes on the impact resistance and damage evolution in laminate carbon nanotubes/epoxy composites under an impact loading. The composite panels were made from carbon fibers and carbon nanotubes randomly distributed into epoxy resin. The amount of carbon nanotubes dispersion was varied up to 4% by weight. Taylor impact tests were carried out to obtain the impact response of specimens with dimensions of 70×70×4 mm3. A projectile manufactured from a high strength and hardened steel with a diameter of 20 mm and 1.5 kg of mass was launched by a compressed gas gun within the velocity of 3 m/s, 7 m/s and 12 m/s. For the experimental test, three velocity levels were used: 3 m/s for the elastic deformation, 7 m/s for the penetration of the impactor and 12 m/s for the perforation of panels. Deformation histories and damage modes in specimens were recorded during the impact test using a high-speed camera. Processing of carbon nanotubes dispersed in laminates, testing, damage, and key findings is reported. It is observed that the impact resistance of laminates reinforced with a random distribution of carbon nanotubes increases up to 15.6% at high-strain rate compared with that of 0% of carbon nanotubes. It is also observed that the resistance to damage initiation and evolution increases with the addition of carbon nanotubes concentration.

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“…In order to model the microstructures of composites reinforced with a random distribution of inclusions, [15]- [17] and [18] presented various kinds of model adapted for this situation. According [19], only 27 inclusions randomly oriented in a composite domain suffice to give an accurate prediction of the mechanical properties.…”

Section: Generating and Meshing Of Straw/earth Modelmentioning

confidence: 99%

Prediction of the Elastic Properties of the Clay-Rice Straw Composite by Numerical Homogenization Technique using Digimat

Adadja

Labintan

Gibigaye

et al. 2019

IJRTE

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This paper deals with numerical modelling of the elastic properties of the rice straw-clay composite. This composite material is currently attracting interest because of its low impact on the environment but also for economic reasons. Benefiting from the advantages of a promising building material, straw reinforced composites attract more attention. This work allowed to model the effect of the straw inclusions on the elastic properties of the composite by a numerical approach considering the aspect ratio, the volume fraction, the orientation and the distribution of the straw inclusions. The Mori-Tanaka homogenization scheme for the RVEs is done using Digimat-MF software and the 3D composite microstructure models are generated by the Digimat-FE software. This made it possible to calculate the effective elastic properties of the clay-rice straw composites by numerical simulation. An empirical linear correlation between the volume fraction of the inclusions and the Young's modulus has been proposed. The results obtained can help to better control the formulation of the composite in developing countries.

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Computational Homogenization of Mechanical Properties for Laminate Composites Reinforced with Thin Film Made of Carbon Nanotubes

Cited by 40 publications

References 50 publications

Inter laminar failure behavior in laminate carbon nanotubes-based polymer composites

Inter laminar failure behavior in laminate carbon nanotubes-based polymer composites

Mechanical behavior of carbon nanotubes-based polymer composites under impact tests

Prediction of the Elastic Properties of the Clay-Rice Straw Composite by Numerical Homogenization Technique using Digimat

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