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Evaluating the effect of different test parameters on the tensile mechanical properties of single crystal silver nanowires using molecular dynamics simulation

  • Jit Sarkar
  • D. K. Das
Research Paper
  • 12 Downloads

Abstract

Nanowires show amazing mechanical properties with respect to their bulk counterpart owing to their very high specific surface and/or interface area and, thus, are widely studied among several researchers. But it is difficult to study the mechanical properties of nanowires at atomistic level, and computational tools provide the required solution. Molecular dynamics simulation studies were carried out in this work to evaluate the mechanical properties of single crystal silver nanowire subjected to tensile deformation under varying wire diameter (4–14 nm), test temperature (100–500 K), and strain velocity (1–6 Å/ps). The simulation were carried out in analogous to real experiment, and the engineering stress and strain were calculated from the simulation result of load and displacement data. The mechanical properties like yield strength and Young’s modulus were calculated from the engineering stress-strain curve. The effect of different test parameters like wire diameter, equilibration temperature, and strain velocity on the mechanical properties were also thoroughly investigated. The result shows that single crystal silver nanowire shows excellent mechanical properties and, thus, can be used as a reinforcing agent to develop ultra-high strength advanced materials for defense and aerospace applications.

Keywords

Silver nanowire Tensile testing Mechanical properties Yield strength Young’s modulus Molecular dynamics Modeling Simulation 

Notes

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

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Copyright information

© Springer Nature B.V. 2018

Authors and Affiliations

  1. 1.Department of Metallurgical and Materials EngineeringIndian Institute of TechnologyKharagpurIndia
  2. 2.Department of Mechanical EngineeringKazi Nazrul UniversityAsansolIndia

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