@Article{cmc.2020.011256,
AUTHOR = {Hamidreza Noori, Bohayra Mortazavi, Alessandro Di Pierro, Emad Jomehzadeh, Xiaoying Zhuang, Zi Goangseup, Kim Sang-Hyun, Timon Rabczuk},
TITLE = {A Systematic Molecular Dynamics Investigation on the Graphene  Polymer Nanocomposites for Bulletproofing},
JOURNAL = {Computers, Materials \& Continua},
VOLUME = {65},
YEAR = {2020},
NUMBER = {3},
PAGES = {2009--2032},
URL = {http://www.techscience.com/cmc/v65n3/40152},
ISSN = {1546-2226},
ABSTRACT = {In modern physics and fabrication technology, simulation of projectile and 
target collision is vital to improve design in some critical applications, like; 
bulletproofing and medical applications. Graphene, the most prominent member of two 
dimensional materials presents ultrahigh tensile strength and stiffness. Moreover, 
polydimethylsiloxane (PDMS) is one of the most important elastomeric materials with a 
high extensive application area, ranging from medical, fabric, and interface material. In 
this work we considered graphene/PDMS structures to explore the bullet resistance of 
resulting nanocomposites. To this aim, extensive molecular dynamic simulations were 
carried out to identify the penetration of bullet through the graphene and PDMS 
composite structures. In this paper, we simulate the impact of a diamond bullet with 
different velocities on the composites made of single- or bi-layer graphene placed in 
different positions of PDMS polymers. The underlying mechanism concerning how the 
PDMS improves the resistance of graphene against impact loading is discussed. We 
discuss that with the same content of graphene, placing the graphene in between the 
PDMS result in enhanced bullet resistance. This work comparatively examines the 
enhancement in design of polymer nanocomposites to improve their bulletproofing response and the obtained results may serve as valuable guide for future experimental and 
theoretical studies.},
DOI = {10.32604/cmc.2020.011256}
}