Abstract
The invention of novel functional materials and their investigation at the molecular level are vital in today’s nanotechnology era. Atomistic modelling approaches are cost-effective and time-consuming alternatives to expensive and time-consuming experimental methods, and they are precise enough to predict the mechanical characteristics of materials. The current chapter goes through the many steps involved in a molecular dynamic’s investigation. The various types of interatomic potentials and their applicability to various materials have been thoroughly examined. Following that, the integration algorithm for solving a set of Newton’s equations, as well as the radius cut-off distance and temperature control, was addressed. Afterwards, many types of ensembles and boundary conditions were addressed, which helped in simulating real-world experimental settings. The approaches for minimizing energy have also been briefly explored. Finally, the limitations of molecular dynamics have been examined, as well as their applicability.
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Acknowledgements
Monetary and academic support from the University of Petroleum and Energy Studies, Dehradun, India (SEED Grant program) is highly appreciable. Akarsh Verma would also like to thank the Japan Society for the Promotion of Science (JSPS) for awarding him the JSPS postdoctoral fellowship.
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Kumar, G., Mishra, R.R., Verma, A. (2022). Introduction to Molecular Dynamics Simulations. In: Verma, A., Mavinkere Rangappa, S., Ogata, S., Siengchin, S. (eds) Forcefields for Atomistic-Scale Simulations: Materials and Applications. Lecture Notes in Applied and Computational Mechanics, vol 99. Springer, Singapore. https://doi.org/10.1007/978-981-19-3092-8_1
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