MADHU SUDAN REDDY ERRI

Title: Simulation of the Interaction between Hydrogen Diffusion and Fatigue Crack Propagation Tools : ABAQUS, Python , FORTRAN, MS Office Tasks: Main aim is to do analysis of the interaction of the Hydrogen in the material at crack region under cyclic loading conditions. Analysis is carried by developing a User subroutine using FORTRAN to implement the hydrogen diffusion behavior in the material. Simulations considering different boundary conditions under the cyclic loading conditions in ABAQUS software.

Tools used: ABAQUS, MS Office, Citavi Tasks: Literature research on the influence of hydrogen on the mechanical properties of metallic materials. Digitization of material properties for use in FEM simulation. Preparation of reports on the results.

Tools: Python Programming Language, ParaView. Tasks: Development of the Microstructures with utilization of the Voronoi Tessellation Method. Optimization of the statistical characteristics and developing the topology of the Microstructures required for the Atomistic Simulations.

Tools: Python Programming Language Tasks: Evolution of the defects during the irradiation of materials in Nuclear environment has been investigated by performing the simulations. The simulations to determine the behavior of the atoms in the crystal lattice with their neighbor's are conducted. Crystal configurations and the Defect Concentrations are analyzed considering one-dimensional and extended to Two-dimensional problem.

Tools: Matlab Tasks: Stress analysis of Nonlinear elastic plate. Implementation of Element routine, Material routine, main program with boundary conditions. Load scaling algorithm and Newton-Raphson method within each load increment using the algorithmically consistent tangent stiffness matrix. Convergence test or Mesh refinement test is conducted to determine the mesh element sizes.

Mechanics of Materials, Non-linear Finite element methods, Continuum Mechanics, Advanced Numerical Methods, Fracture Mechanics Computations, Plasticity.

Strength of Materials, Machine Design, Production Technology, Machine Tools, CAD/CAM., Finite Element Methods.