I am an assistant professor in the Department of Mechanical and Industrial Engineering at the University of Iowa, Iowa City.
My research interests are: manufacturing process modeling, hybrid machining, laser-based material processing, and micro/nano materials processing, etc.

Bulk Nanocrystalline Materials

  • Dislocation Density-based Modeling
  • Predictive Modeling of Nanocrystalline Structures via SPD Microstructural evolution of workpiece materials during cutting is quantitatively modeled using a dislocation density-based model.  This work is the first of its kind in this field.  The material strengthening ...
    Posted Nov 21, 2011, 8:43 AM by Hongtao Ding
  • Coupled Eulerian-Lagrangian (CEL) FE model A coupled Eulerian-Lagrangian (CEL) model was developed to simulate steady-state chip formation and grain refinement in two-dimensional (2D) orthogonal cutting by using the commercial software Abaqus.One ...
    Posted Nov 20, 2011, 3:23 PM by Hongtao Ding
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  • Size Effect & Strain Gradient Model
  • Finite Element Simulation of Micro Milling using Abaqus Fig. 1 Micro Side Milling Simulation using Abaqus 
    Posted Nov 21, 2011, 8:55 AM by Hongtao Ding
  • Laser-Assisted MicroMachining (LAMM) This study is focused on numerical modeling analysis of laser-assisted micro-milling (LAMM) of difficult-to-machine alloys, such as Ti6Al4V, Inconel 718, and stainless steel AISI 422. Multiple ...
    Posted Nov 19, 2011, 10:35 PM by Hongtao Ding
  • MicroMachining with Micro Endmills To analyze the surface defects caused by the size effect in micromachining using conventional micro tools, I have developed a novel finite element model with a strain gradient plasticity analysis ...
    Posted Nov 21, 2011, 8:54 AM by Hongtao Ding
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Physics-based Models

  • Metallo-thermo-mechanically Coupled Analysis
  • Physics-based Models Figure. Physics-based models and software utilities. 
    Posted Nov 21, 2011, 8:47 AM by Hongtao Ding
  • Phase Change in Hard Machining Phase change was truly coupled in machining models.  This work has never been successfully done by others before.  A metallo-thermo-mechanical coupled numerical framework was developed to solve for ...
    Posted Nov 19, 2011, 9:50 PM by Hongtao Ding
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Multi-pass Cold Rolling

  • Predictive Modeling of Nanocrystalline Structure
  • Grain Refinement via Cold Rolling Recently, grain refinement and grain misorientation have been experimentally studied for various materials with ultra-fine grained microstructures, which are achieved by the multi-pass cold rolling process.  A numerical ...
    Posted Nov 21, 2011, 8:58 AM by Hongtao Ding
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Laser-Assisted Machining

  • 3D Thermal Modeling of Complex Profile
  • One-Step Finishing Machining of hardened steel components has traditionally been the domain of grinding. A laser-assisted machining (LAM) process with a larger material removal rate is developed to replace the currently ...
    Posted Nov 21, 2011, 8:59 AM by Hongtao Ding
  • Improve Machinability and Surface Integrity Novel laser-assisted machining techniques were exploited for profile finishing of difficult-to-machine materials of complex geometric features.  The study of laser-assisted machining was based on a simultaneous ...
    Posted Nov 19, 2011, 9:55 PM by Hongtao Ding
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Laser Shock Peening

  • Nanocrystalline Structure & Material Strengthening  
  • Laser Shock Peening (LSP) Laser shock peening (LSP) is an innovative surface treatment technique applied to improve the mechanical properties and surface microstructures of metallic components.  This work is concerned with prediction of the ...
    Posted Nov 19, 2011, 8:53 PM by Hongtao Ding
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