10.57647/j.jtap.2025.1902.18

Simulation-based analysis of the impact of lattice cavities on tungsten’s mechanical properties

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  • Mir Mohammadreza Seyedhabashi*1,
  • Hadise Eslami2,
  • Mehdi Janbazi3,
  • Ehsan Noori1,
  1. Atomic Energy Organization of Iran (AEOI)Plasma and Nuclear Fusion Research School, Nuclear Science and Technology Research Institute (NSTRI), Tehran, Iran
  2. Physics Department, University of Isfahan, Isfahan, Iran
  3. Atomic Energy Organization of Iran (AEOI) Physics and Accelerators School, Nuclear Sciences and Technology Research Institute (NSTRI), Karaj, Iran

Received: 2024-12-08

Revised: 2025-01-28

Accepted: 2025-02-02

Published 2025-04-10

Copyright (c) 2025 Mir Mohammadreza Seyedhabashi, Hadise Eslami, Mehdi Janbazi, Ehsan Noori (Author)

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

1.
Seyedhabashi MM, Eslami H, Janbazi M, Noori E. Simulation-based analysis of the impact of lattice cavities on tungsten’s mechanical properties. J Theor Appl phys. 2025 Apr. 10;19(2 (April 2025):1-6. Available from: https://oiccpress.com/jtap/article/view/16588
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Abstract

Tungsten, as a plasma-facing material in nuclear fusion reactors like tokamaks, is exposed to extreme conditions, including high heat flux and neutron radiation. These conditions lead to the formation of vacancies and structural defects, significantly influencing its mechanical properties. This study investigates the impact of varying vacancy concentrations on the mechanical behavior of tungsten, focusing on Young’s modulus and tensile strength. Using molecular dynamics simulations implemented in LAMMPS software, different levels of vacancy densities were introduced into tungsten’s lattice structure. The results revealed that an increase in vacancy concentration correlates with a noticeable reduction in both stiffness and tensile strength of the material. These findings underscore the critical role of radiation-induced defects in altering the performance and durability of tungsten, providing valuable insights for its application in fusion reactor designs.

Keywords

  • Tungsten,
  • Lattice vacancies,
  • Mechanical properties,
  • Young’s modulus,
  • Tensile strength molecular dynamics simulation
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