Can I read Influence of Temperature and Size of the Projectile on Perforation of Graphene Sheet Under Transverse Impact Using Molecular Dynamics on EtoBox?

Influence of Temperature and Size of the Projectile on Perforation of Graphene Sheet Under Transverse Impact Using Molecular Dynamics by Sardar, Bhuwan (author);Singh, Satinder Paul (author);Mahajan, Puneet (author) is a Engineering article available to read on EtoBox.

What is Influence of Temperature and Size of the Projectile on Perforation of Graphene Sheet Under Transverse Impact Using Molecular Dynamics about?

In this paper, Molecular dynamics simulation is employed to study the ballistic behavior of single-layer graphene sheet (SLGS) impacted by different sizes of fullerene projectiles and under different temperature conditions. The ballistic performance parameters viz. ballistic velocity limit ( V b l ), energy absorption ( Δ K E p ), and impact reaction force ( F p ) on projectile are investigated to understand the perforation mechanics of SLGS. The results under C180 projectile show that at mid-range impact velocity ( ∼ V b l = 4 . 4 km/s), the projectile sticks to graphene by dynamic covalent bonds (DCB) formation or is trapped. These dynamic covalent bonds are formed and broken concurrently and influence the projectile energy transmitted to SLGS. It is found that for relatively bigger projectile sizes, graphene exhibits greater energy absorption and reaction force. However, the ballistic velocity limit as well as the specific kinetic energy absorbed ( E p ∗ ) by graphene are reduced. The stress distribution shows that for large projectiles, crack propagation is further aided by the axial stress wave reflection. Moreover, the impact test under C180 projectile shows that V b l and E

Who reads Influence of Temperature and Size of the Projectile on Perforation of Graphene Sheet Under Transverse Impact Using Molecular Dynamics?

Author

Sardar, Bhuwan (author);Singh, Satinder Paul (author);Mahajan, Puneet (author)

Publisher

Elsevier BV

Published

2023

Language

EN

Field

Engineering (Physical Sciences)