Experimental Study and Numerical Modelling of Low Velocity Impact on Laminated Composite Reinforced with Thin Film Made of Carbon Nanotubes

Moumen, A. El; Tarfaoui, Mostapha; Hassoon, Omar Hashim; Lafdi, Khalid; Benyahia, Hamza; Nachtane, Mourad

doi:10.1007/s10443-017-9622-8

Cited by 47 publications

(28 citation statements)

References 23 publications

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“…For that, CNTs tend to improve the interfacial resistance and retard the damage initiation and the delamination evolution. 24,25 Delamination in the numerical model vs. CNTs concentration Numerical loading was applied using a prescribed displacement on the nodes placed under indenter. Nodes above supports were fixed.…”

Section: Confrontation Of Numerical Results and Experimental Datamentioning

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: Confrontation Of Numerical Results and Experimental Datamentioning

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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“…Electrical response was recorded as electrical current density (ECD) in Abaqus which was then converted to resistance response using Eqs. (4)- (6) to validate the experimental piezo-resistive behavior of sensor wire. Electromechanical behavior of the monofilament is shown in Figure 10.…”

Section: Verification Of Sensor Responsementioning

confidence: 99%

“…Composite materials, despite having better physical properties, are not exempt from limitations and drawbacks [1][2][3][4]. The mechanisms of damage initiation and propagation leading to ultimate fracture in these materials are very complex but very well established [5][6][7][8][9][10][11]. Structural health monitoring (SHM) is a well-known technique to examine the mechanical behavior of the structure during operation and to avoid its sudden failure [12].…”

Section: Introductionmentioning

confidence: 99%

Nanotechnology and Development of Strain Sensor for Damage Detection

Qureshi¹,

Tarfaoui²,

Lafdi³

et al. 2019

Advances in Structural Health Monitoring

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Composite materials, having better properties than traditional materials, are susceptible to potential damage during operating conditions, and this issue is usually not found until it is too late. Thus, it is important to identify when cracks occur within a structure, to avoid catastrophic failure. The objective of this chapter is to fabricate a new generation of strain sensors in the form of a wire/thread that can be incorporated into a material to detect damage before they become fatal. This microscale strain sensor consists of flexible, untwisted nylon yarn coated with a thin layer of silver using electroless plating process. The electromechanical response of this sensor wire was tested experimentally using tensile loading and then verified numerically with good agreement in results. This flexible strain sensor was then incorporated into a composite specimen to demonstrate the detection of damage initiation before the deformation of structure becomes fatal. The specimens were tested mechanically in a standard tensometer machine, while the electrical response was recorded. The results were very encouraging, and the signal from the sensor was correlated perfectly with the mechanical behavior of the specimen. This showed that these flexible strain sensors can be used for in situ structural health monitoring (SHM) and real-time damage detection applications.

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“…In this study, we have generated the RVE with the maximum number of inclusions. The algorithm of inclusions implementation was already described in previous works [16], [20] and proposed by Digimat-FE software. Figure 18 shows examples of created RVE microstructures.…”

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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Experimental Study and Numerical Modelling of Low Velocity Impact on Laminated Composite Reinforced with Thin Film Made of Carbon Nanotubes

Cited by 47 publications

References 23 publications

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

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

Nanotechnology and Development of Strain Sensor for Damage Detection

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

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