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Ali Nassiri

Email: nassiri.3@osu.edu

Website: www.hsml.osu.edu

Office Hours:

Tuesday 4:00 p.m. - 5:00 p.m.
Friday 3:30 p.m. - 4:30 p.m.

Simulation Capabilities:

  • 9+ years of experience in finite element analysis of high-speed joining/welding/forming processes
  • 9+ years of experience in thermal-structural finite element analysis of highly dynamic events

Experimental Capabilities:

  • Experienced in conducting magnetic pulse welding and vaporizing foil actuator welding, operating high voltage pulse generators, and class IV lasers
  • Experienced in materials characterization, mechanical testing, metallography, SEM, TEM, XRD and EBSD

Software Proficiency:

  • Abaqus
  • LS-DYNA
  • COMSOL
  • SOLIDWORKS
  • MATLAB

Recent Projects:

  • Leveraging numerical tools to identify weldability between high-strength steels (JSC 980/JAC 980) and aluminum alloys (series 2000/6000/7000) during high-velocity impact welding
  • Multiphysics simulation of foil vaporization during VFA process
  • Fundamental studies and modeling of laser welding process with a focus on automotive parts
  • Developing explicit finite element platform with different algorithms to simulate the interface between dissimilar materials with diffusion layer/coating during solid-state welding
  • Implementing a computational platform based on smoothed particle hydrodynamics (SPH) method capable of simulating the interface between dissimilar materials during high-velocity impact welding

Selected Publications:

  • Nassiri A., Abke T., Daehn G., 2019, “Investigation of melting phenomena in solid-state welding processes”. Scripta Materialia, 168, 61-66.
  • Liu B., Palazotto A., Nassiri A., Vivek A., Daehn G., 2019, "Experimental and numerical investigation of interfacial microstructure in fully age-hardened 15-5 PH stainless steel during impact welding", Journal of Materials Science (54), 13, 9824-9842.
  • Zhang S., Nassiri A., Kinsey B., 2018, “Numerical model and experimental investigation of electromagnetic tube compression with field shaper”, Procedia Manufacturing, 26, 537-542. 
  • Nassiri A., Vivek A., Abke T., Liu B. , Lee T., Daehn G., 2017, “Depiction of interfacial morphology in high-velocity impact welded Ti/Cu bimetallic systems using smoothed particle hydrodynamics”, Applied Physics Letters  (110), 23, 1601 (featured on the cover).

  • Nassiri A., Zhang S., Lee T., Abke T., Vivek A., Kinsey B., Daehn G., 2017, “Numerical investigation of CP-Ti & Cu110 impact welding using Smoothed Particle Hydrodynamics and Arbitrary Lagrangian-Eulerian methods”, Journal of Manufacturing Processes 28, 558-564. 
  • Kinsey B., Nassiri A., 2017, “Analytical model and experimental investigation of electromagnetic tube compression with axi-symmetric coil and field shaper”, CIRP Annals Manufacturing Technology 66, 273-276.
  • Nassiri A., Kinsey B., Chini G., 2016, “Shear instability of plastically-deforming metals in high-velocity impact welding”, Journal of the Mechanics and Physics of Solids 95, 351-373.
  • Nassiri A., Kinsey B.,  2016, “Numerical studies on high-velocity impact welding: Smoothed Particle Hydrodynamics (SPH) and Arbitrary Lagrangian-Eulerian (ALE)”, Journal of Manufacturing Processes, 24, 376-381.
  • Nassiri A., Chini G., Vivek A., Daehn G., Kinsey B., 2015, “Arbitrary Lagrangian Eulerian finite element simulation and experimental investigation of wavy interfacial morphology during high velocity impact welding”, Materials & Design 88, 345-358.
  • Nassiri A., Campbell C., Chini G., Kinsey B., 2015, “Analytical model and experimental validation of single turn, axi-symmetric coil for electromagnetic forming and welding”, Procedia Manufacturing 1, 814-827.
  • Nassiri A., Chini G., Kinsey B., 2014, “Spatial stability analysis of emergent wavy interfacial patterns during magnetic pulsed welding”, CIRP Annals Manufacturing Technology 63(1), 245-248.