Benchmarking the penetration-resistance efficiency of multilayer graphene sheets due to spacing the graphene layers

Sadeghzadeh, Sadegh

doi:10.1007/s00339-016-0186-5

Cited by 16 publications

(8 citation statements)

References 29 publications

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“…Because of the partially overlapping GO flakes, radial stress waves can propagate significantly farther through the composite since the in-plane speed of sound of GO flakes can be considerably faster than that of SF due to higher Young’s modulus of GO ( E GO ∼ 207.6 GPa) than that of SF ( E SF ∼ 4.1 GPa), where the speeds of sound is proportional to √ E . Therefore, the abrupt increase at 100% areal coverage can be accredited to the impact energy delocalization by the elastic wave propagation through the connected GO flakes …”

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confidence: 99%

“…Therefore, the abrupt increase at 100% areal coverage can be accredited to the impact energy delocalization by the elastic wave propagation through the connected GO flakes. 49 E d *, the difference between E p * and v i 2 /2, indicates how efficiently the material can dissipate penetration energy through the delocalization process along the in-plane direction. Because this redirection of energy flow from the normal to tangential direction is highly desired in an armor to achieve the same antiballistic performance with less material, E p * of pure SF and GO-SF composites were compared with other microscopic and macroscopic materials from previous literature (Figure 5c).…”

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Extreme Mechanical Behavior of Nacre-Mimetic Graphene-Oxide and Silk Nanocomposites

et al. 2018

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Biological materials have the ability to withstand extreme mechanical forces due to their unique multilevel hierarchical structure. Here, we fabricated a nacre-mimetic nanocomposite comprised of silk fibroin and graphene oxide that exhibits hybridized dynamic responses arising from alternating high-contrast mechanical properties of the components at the nanoscale. Dynamic mechanical behavior of these nanocomposites is assessed through a microscale ballistic characterization using a 7.6 μm diameter silica sphere moving at a speed of approximately 400 m/s. The volume fraction of graphene oxide in these composites is systematically varied from 0 to 32 vol % to quantify the dynamic effects correlating with the structural morphologies of the graphene oxide flakes. Specific penetration energy of the films rapidly increases as the distribution of graphene oxide flakes evolves from noninteracting, isolated sheets to a partially overlapping continuous sheet. The specific penetration energy of the nanocomposite at the highest graphene oxide content tested here is found to be significantly higher than that of Kevlar fabrics and close to that of pure multilayer graphene. This study evidently demonstrates that the morphologies of nanoscale constituents and their interactions are critical to realize scalable high-performance nanocomposites using typical nanomaterial constituents having finite dimensions.

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Extreme Mechanical Behavior of Nacre-Mimetic Graphene-Oxide and Silk Nanocomposites

et al. 2018

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“…Using molecular dynamics (MD) method, Abdol et al [32] built a three-dimensional graphene networks via silicon ion beam irradiation. In a series reports by Sadeghzadeh [34,[39][40][41][42] , the graphene sheets were impacted with various kinds of high speed projectiles, and the effects of several parameters on the rupture form and penetration-resistance efficiency of the graphene ribbons were evaluated systematically. In the experiments by Eller et al [43] , few layered graphene were bombarded with golden nanoparticles, and the ejection of ions from graphene were characterized.…”

Section: Introductionmentioning

confidence: 99%

Bonding few-layered graphene via collision with high-speed fullerenes

Shi¹,

Hu²,

Sun³

et al. 2021

Nanotechnology

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Graphene, as a typical two-dimensional material, is popular in the design of nanodevices. The interlayer relative sliding of graphene sheets can significantly affect the effective bending stiffness of the few-layered graphene. For restricting the relative sliding, we adopted the atomic shot peening method to bond the graphene sheets together by ballistic C60 fullerenes from its two surfaces. Collision effects are evaluated via molecular dynamics simulations. Results obtained indicate that the fullerenes’ incident velocity has an interval, in which the graphene sheet can be bonded after collision while no atoms on the fullerenes escaping from the graphene ribbon after collision. The limits of the interval increase with the layer number. Within a few picoseconds of collision, a stable carbon network is produced at an impacted area. The graphene sheets are bonded via the network and cannot slide relatively anymore. Conclusions are drawn to show the way of potential applications of the method in manufacturing a new graphene-based two-dimensional material that has a high out-of-plane bending stiffness.

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“…Even in very low concentrations, graphene can greatly enhance the ability of electrical charge to flow in a material [11]. Recently, numerous researches have been carried out to study the impact behavior of graphene [12,13] as well as resistance rupture and creation of nanopore in graphene [14][15][16][17]. The results demonstrate that graphene sheets can be used as bulletproofing due to its ultrahigh strength.…”

Section: Introductionmentioning

confidence: 99%

Nanopore creation in MoS2 and graphene monolayers by nanoparticles impact: a reactive molecular dynamics study

et al. 2021

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In this work, extensive reactive molecular dynamics simulations are conducted to analyze the nanopore creation by nanoparticles impact over single-layer molybdenum disulfide (MoS2) with 1T and 2H phases. We also compare the results with graphene monolayer. In our simulations, nanosheets are exposed to a spherical rigid carbon projectile with high initial velocities ranging from 2 to 23 km/s. Results for three different structures are compared to examine the most critical factors in the perforation and resistance force during the impact. To analyze the perforation and impact resistance, kinetic energy and displacement time history of the projectile as well as perforation resistance force of the projectile are investigated. Interestingly, although the elasticity module and tensile strength of the graphene are by almost five times higher than those of MoS2, the results demonstrate that 1T and 2H-MoS2 phases are more resistive to the impact loading and perforation than graphene. For the MoS2nanosheets, we realize that the 2H phase is more resistant to impact loading than the 1T counterpart. Our reactive molecular dynamics results highlight that in addition to the strength and toughness, atomic structure is another crucial factor that can contribute substantially to impact resistance of 2D materials. The obtained results can be useful to guide the experimental setups for the nanopore creation in MoS2or other 2D lattices.

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Benchmarking the penetration-resistance efficiency of multilayer graphene sheets due to spacing the graphene layers

Cited by 16 publications

References 29 publications

Extreme Mechanical Behavior of Nacre-Mimetic Graphene-Oxide and Silk Nanocomposites

Extreme Mechanical Behavior of Nacre-Mimetic Graphene-Oxide and Silk Nanocomposites

Bonding few-layered graphene via collision with high-speed fullerenes

Nanopore creation in MoS2 and graphene monolayers by nanoparticles impact: a reactive molecular dynamics study

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