LPU undergraduate student Raj Chawla (Department of Mechanical Engineering) has had his paper on ‘Molecular dynamics simulation of carbon nanotube pull-out from polyethylene matrix’ published in the prestigious Elsevier journal ‘Composites Science and Technology’.
Dr. Sumit Sharma, Assistant Professor (Materials Engineering, Department of Mechanical Engineering) was the Corresponding Author for this paper.
Details of the journal can be obtained from the following websites:
Journal Link:https://www.journals.elsevier.com/composites-science-and-technology
SJR: http://www.scimagojr.com/journalsearch.php?q=15995&tip=sid&clean=0
Paper Abstract
The objective of this study is to examine the influence of carbon nanotube (CNT) pull-out from polyethylene (PE) matrix on the mechanical properties of CNT/PE composite. Materials Studio 8.0 has been used for carrying out the molecular dynamics (MD) simulation. The mechanical properties predicted are the Young’s modulus and the interfacial shear stress (ISS). The effect of increase in strain on the Young’s modulus of CNT has also been studied. A (5,5) armchair single walled carbon nanotube (SWCNT) of diameter 6.78 Å and length of 49.2 Å has been used. When the SWCNT was pulled out from the PE matrix by 10 Å, there was 14.30% reduction in the longitudinal modulus (E33). When the displacement was increased to 50 Å, E33 was reduced by 43.79% with respect to a fully embedded CNT. ISS was mainly distributed over the first and final 10 Å of pull-out, in the stage I and stage III where the energy increments see a large change.
The paper can be obtained through the following link:
http://www.sciencedirect.com/science/article/pii/S0266353816313392
