Welcome to Dr. Mahtabi's Research Webpage
Our Research
Our team's research focuses on the experimental testing and characterization of materials and parallel modeling of their behavior at different length- and time-scales using various computational methods such as:
Density functional theory (DFT)
Molecular dynamics (MD)
Phase-field method (PFM)
Dislocation dynamics (DD)
Crystal plasticity finite element (CPFE)
Finite element method (FEM)
We develop and use numerical methods and mechanistic models, validated by experiments, to determine the underlying mechanisms of engineering material properties.
Shape Memory Alloys (SMAs)
MD simulations of thermomechanical behavior of NiTi shape memory alloy
MD simulations of shape memory effect in pure and precipitated NiTi alloy
MD simulations of volume change of NiTi shape memory alloy upon thermal cycling
Additive Manufacturing
Kinetic Monte Carlo (KMC) simulations of grain evolution during AM of stainless steel
Fatigue and Fracture Mechanics
MD simulation of nanocrack growth in superelastic NiTi SMA under tensile monotonic loading (horizontally applied)
MD simulation of nanocrack growth in superelastic NiTi SMA under cyclic loading (horizontally applied)
Modeling fatigue life in additively manufactured materials based on defect size (XRay CT) and crack growth using FASTRAN