University of Louisville

PI: Md Jahidur Rahman

Department: Mechanical Engineering

Introduction:

The purpose of the usage of high-performance computing resources at University of Kentucky is to perform atomic scale simulation, mainly Molecular Dynamics (LAMMPS). This work will be focused on the relationship between structure, property and performance. In particular, the materials used in nuclear technology will be investigated.

Projects:

1. In nuclear operation, electricity production depends on the efficient removal of the fission generated heat. Additionally, accident tolerance behavior of nuclear reactor is strongly connected to heat transfer. Therefore, thermal conductivity of nuclear materials is of great importance. In project-1, measurement and improvement of thermal conductivity in fuel and reactor materials will be studied.

2. In nuclear process, radiation damage causes severe deterioration of the properties and performance of nuclear materials. For example, microstructural changes, production of bubbles, voids cause swelling and fragmentation. In project-2, primary stage radiation damage and corresponding resistance behavior will be investigated mainly in reactor materials, for example high entropy alloys.

Personnel:

Faculty: Md Jahidur Rahman

Student: Hamilton Bryan (Undergrad)

Computational methods:

Atomistic simulations.

Software:

Molecular Dynamics (LAMMPS)

Publications:

1. MJ Rahman, B Szpunar, JA Szpunar, Dependence of thermal conductivity on fission-product defects and vacancy concentration in thorium dioxide, Journal of Nuclear Materials 532, 152050 (2020).

2. MJ Rahman, MWD Cooper, B Szpunar, JA Szpunar, Primary radiation damage on displacement cascades in UO₂, ThO₂ and (U₅Th_0.5)O₂, Computational Materials Science 154, 508-516 (2018).

Project Storage and Data Retention Requirements:
Initially 1TB per user for 3 years.

Yes/No/maybe: Does the project involve the use of sensitive or protected data as defined by the University of Louisville’s Information Security Office (ISO)?

No, it does not.

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