Vikram Roy

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Questions related from Vikram Roy

Reference Source for Mobility Function Mobility_BCC_Fe_nl.cc in ParaDis 4.0 ?

In ParaDis 4.0 there is a nonlinear Mobility function named Mobility_BCC_Fe_nl.cc for Fe alloys fitted based on MD simulation results. But No reference is mentioned neither in source files nor in...

01 December 2023 4,641 0 View

How does the Fast Multipole Method prevent dislocation self-annihilation in cubic cells within Dislocation Dynamics Analysis using ParaDis?

Numerous studies have utilized non-cubic dimensions to mitigate dislocation self-annihilation when employing periodic boundary conditions. However, the Fast Multipole Method within ParaDis...

29 November 2023 7,175 2 View

How to create Frank Reed Sources for FCC material for Dislocation Dynamics Analysis in ParaDis ?

I am currently delving into the application of the ParaDis Dislocation Dynamics Code. Multiple DD simulation papers suggest that the initial dislocation data involves distributing frank-reed...

28 November 2023 963 0 View

What are the appropriate boundary conditions for simulating shear deformation of a screw dislocation in LAMMPS?

Hello, I'm seeking clarification on the selection of suitable boundary conditions for simulating shear deformation of a screw dislocation using LAMMPS. In my script, I currently employ the...

11 November 2023 9,079 1 View

Can a <111> screw dislocation be directed to move along {112} slip planes through controlled strain in Molecular Dynamics Analysis?

Investigating the potential for manipulating the movement of a screw dislocation, typically prone to {110} slip, to instead traverse {112} slip planes by applying specific strains in...

09 November 2023 4,828 2 View

Error encountered when debugging Fortran program with gdb: Assertion failure in dynamic_prop::const_val()?

I am seeking assistance on ResearchGate for debugging a Fortran program using gdb. The program consists of multiple subroutines written in different modules. Whenever I attempt to step into one of...

15 July 2023 2,742 1 View

Which Version of Fortran (Fortran77,90 or 95) does abaqus support for running user subroutines?

Abaqus is a popular finite element analysis software used for simulating a wide range of engineering problems. One of the unique features of Abaqus is the ability to incorporate user-defined...

14 March 2023 1,310 2 View

What sets apart CPFEM UMAT or PRISMS Plasticity Crystal Plasticity Simulations from VPSC8 Crystal Plasticity Texture Simulations ?

Kindly explain how VPSC8 carried out texture simulations? Does it uses similar Finite Element approach as is used in CPFEM UMAT in ABAQUS and PRISMS Plasticity or it carried out something else?...

08 March 2023 2,851 2 View