Polyurea for blast and impact protection: A review

R Zhang, W Huang, P Lyu, S Yan, X Wang, J Ju - Polymers, 2022 - mdpi.com
Polyurea has attracted extensive attention from researchers and engineers in the field of
blast and impact protection due to its excellent quasi-static mechanical properties and …

Investigation of dynamic impact responses of layered polymer-graphene nanocomposite films using coarse-grained molecular dynamics simulations

Z Yang, CC Chiang, Z Meng - Carbon, 2023 - Elsevier
Polymer nanocomposite films have recently shown superior energy dissipation capability by
using the micro-projectile impact testing method. However, how stress waves interact with …

[HTML][HTML] Probing the molecular-level energy absorption mechanism and strategic sequencing of graphene/Al composite laminates under high-velocity ballistic impact …

KK Gupta, T Mukhopadhyay, S Dey - Applied Surface Science, 2023 - Elsevier
Motivated by recent discoveries concerning the extreme superiority of multilayer graphene in
terms of kinetic energy dissipation compared to conventional monolithic materials, this …

Energy absorption mechanisms of nanoscopic multilayer structures under ballistic impact loading

MAN Dewapriya, RE Miller - Computational Materials Science, 2021 - Elsevier
We conducted large-scale molecular dynamics (MD) simulations of ballistic impact tests on
ultrathin aluminum and polyurea layers and their multilayer arrangements to investigate the …

Impact Behavior of Advanced Films under Micro-and Nano-scales: A Review

Y Cheng, J Dong, K Xiao, M Jiang, C Huang… - Thin-Walled Structures, 2024 - Elsevier
High-performance materials with excellent impact resistance are of fundamental importance
in impact protective engineering. With the development of experimental facilities and …

On exploiting nonparametric kernel-based probabilistic machine learning over the large compositional space of high entropy alloys for optimal nanoscale ballistics

KK Gupta, S Barman, S Dey, S Naskar… - Scientific Reports, 2024 - nature.com
The large compositional space of high entropy alloys (HEA) often presents significant
challenges in comprehensively deducing the critical influence of atomic composition on their …

Molecular dynamics study of the penetration resistance of multilayer polymer/ceramic nanocomposites under supersonic projectile impacts

MAN Dewapriya, RE Miller - Extreme Mechanics Letters, 2021 - Elsevier
We simulated ballistic impact tests of multilayer polyurea/silicon-carbide (SiC)
nanostructures using molecular dynamics (MD). First, we conducted density functional …

Molecular dynamics simulations of shock propagation and spallation in amorphous polymers

MAN Dewapriya, RE Miller - Journal of Applied …, 2021 - asmedigitalcollection.asme.org
We conducted large-scale molecular dynamics (MD) simulations of shock wave propagation
and spallation in amorphous polyurethane and polyurea. First, we computed the shock …

Scaling law for impact resistance of amorphous alloys connecting atomistic molecular dynamics with macroscale experiments

Y Cheng, J Dong, F Li, Y Shen, Q An… - … Applied Materials & …, 2023 - ACS Publications
Establishing scaling laws for amorphous alloys is of critical importance for describing their
mechanical behavior at different size scales. In this paper, taking Ni2Ta amorphous metallic …

Quantum and classical molecular dynamics simulations of shocked polyurea and polyurethane

MAN Dewapriya, RE Miller - Computational Materials Science, 2022 - Elsevier
We conducted density functional theory based quantum molecular dynamics (QMD) and
force field based classical molecular dynamics (CMD) simulations to compute the shock …