Research

Ph.D.:

(1)  “Plastic Behavior of Polycrystalline Thin Films: Discrete Dislocation Dynamics”

  • Dislocation climb is incorporated in discrete dislocation dynamics model
  •  Constitutive equations developed based on simulation results
  • Showed how size effect naturally enters evolution equation
  •  Developed simulation code

(2)  “Measuring the Mechanical Properties of Ultra-Thin Films and Patterned Structures”

  • Contributed in writing proposal
  • Developed simple techniques to manufacture and measure mechanical properties of ultra thin films (~20 nm)
  • Use of residual stress to drive deformation and XeF2 to etch structure more accurately
  • Use of Digital Image Correlation to increase precision of strain measurement

(3)  “Finding Elastic Constants of Anisotropic Materials by Means of Nano-Indentation”

(4)  “Laparoscopic Device for Direct and Indirect Suction”

  • Collaboration with Beth Israel Hospital
  • Combined direct and indirect suction, and irrigation in one device
  • Resulted in paper and patent

M.Sc.:

(1)  “Interaction of a Screw and a Nanowire in Strain Gradient Elasticity”

  • Collaboration with Dr. Mikhail Gutkin of Institute of Problems of Mechanical Engineering, Russian Academy of Sciences
  • Solved complicated set of partial differential equations analytically
  • Strain Gradient can capture size dependence. More accurate than classical theories for materials at small scales and near defects

(2)  “Screw Dislocation in a Functionally Graded Material Using Theory of Gradient Elasticity”

  • Collaboration with Prof. Elias Aifantis of Michigan Tech.
  • Solved partial differential equation with variable coefficients
  • Strain Gradient can capture size dependence. More accurate than classical theories for materials at small scales and near defects

B.Sc.:

Matrix Structural Analysis Using Matlab

  • Developed Matlab code from scratch to analyze 2D and 3D structures