how do we calculate the cFactor (constant factor) for displacement and acceleration in Opensees?
I am using the four node quadrilateral element to model a 40m deep soil column under earthquake excitations in OpenSees. However, the dimension of the stress output file is different from that of...
01 February 2017 3,482 5 View
Hi, I'm currently working on a project where I need to plot the atom-projected band structure using GPAW. I've been able to calculate the band structure for my material, but I'm having trouble...
07 August 2024 269 3 View
Hello! I am trying to calculate the sumatriptan molecule, but it has been counting for five days and it does not stop. It seems to me that it is too long and I am doing something wrong. Please...
25 July 2024 3,364 5 View
Dear Researchers, My question is associated with the "MDCI" method in Orca. Please let me clarify my question using a simple example: Suppose we are going to perform CBS extrapolation using "!...
21 July 2024 1,632 0 View
I have identified many solutions. I need suggestion from somebody with application experience of this topic to identify the most reliable and robust procedure.
21 July 2024 3,465 5 View
hi, I am doing a risk analysis of a cylindrical fuselage with windows. I have applied contact interactions between the different parts, and I have applied a unit value load to a reference point,...
20 July 2024 647 2 View
I'm trying to study the effects of introducing vacancy defects in my material. If I optimize my structure and find the lattice parameter before introducing vacancy, should I again optimize my...
18 July 2024 1,794 2 View
I am simulating interlocking / dry stacked masonry in Abaqus. I am using a friction coefficient of 0.6 for my model as it is stated in the previous research as well as in the base paper. The...
16 July 2024 5,047 0 View
Dear All, I am trying to define the dispersion curves of a periodic unit cell in COMSOL Multiphysics with prescribed displacements. I am using two separate studies: - Study 1: Stationary, with...
13 July 2024 7,855 1 View
Hello dear colleagues and professors Please what is the recommended type of pseudopotentials for QE? ultrasoft or norm conserving?? And from where get all types of pseudos (us, nc, pbe,...
09 July 2024 9,541 5 View
The system matrix has 172 negative eigenvalues. Displacement increment for contact is too big. Displacement increment for contact is too big. The strain increment has exceeded fifty times the...
05 July 2024 3,839 2 View