How to find the cross section area in ANSYS Mechanical?

I should calculate the variation of the area of a hole made on a pressure pipe (HDPE).The piping is deformed due to pressure.

The hole passes from circular to elliptical.

How can I calculate, on Mechanical, the area of the elliptical hole?

Hello,

I am trying to export Mass and Stiffness matrices using Ansys Workbench via Modal analysis modular, with APDL commands inserted. However, there is no .matrix file generated. Could anyone please tell me what I'm doing wrong? The figure illustrating the procedure as well as the commands is attached.

Thank you.

Rui Wang

I am working on a transient structural analysis in Ansys Mechanical. I want to export the Nodal reaction force vectors for selected nodes of a part at all the time steps.

Basically, I need a force vs time plots for each of the selected nodes or mesh elements.

I have tried using User Defines Results to obtain ENFOSUM and ENFOVECTORS however the results displayed (force vs time) are just the maximum and minimum force values among the selected nodes/elements. If I export the results then I obtain the force values at each of the selected nodes for a single time step only.

It will be a tedious job to export these nodal results for each time step and then combining them to obtain the force vs time plots for the nodes/elements.

Is there a better and accurate way?

in this word file I collect the pictures of error?

I am trying to get the maximum values of elastic strain energy stored in one of a table (etable and also in an array using "* get", but I can't get the correct sequence of codes.

Hi, I'm trying to simulate the axial crushing of a thin-walled column on ansys explicit dynamics. The problem now is that the program will stop running at a certain point and report the error energy is too large. The FE model is built in APDL and imported into workbench through a .cdb file. 

Also, I have specified a failure criteria in the workbench - engineering data. But the interesting thing is that the failure criteria seems to be ignored if the FE model is created in APDL and imported into workbench.

The energy summary and model are attached. Thanks for helping!

I am modeling a reinforced concrete beam using ANSYS. From my repeated trials on nonlinear solution, I have noticed that changing the CONVERGENCE CRITERIA of solution will change the solution results completely and  without a specific pattern.

Not only Failure load and deflection at failure, but also load deflection curve change in a clear manner using different values and combinations of convergence criteria.

My question is: What is the concept on which ANSYS is performing the analysis using different values of convergence criteria? and How one can choose the suitable convergence criteria combinations and values if each one gives a completely different results?

Regards

I use 2 material, soil and concrete by plane 182 and plane 42 respectively. I want to know how the self weight of the soil effect to the tunnel lining (concrete). Which command should I use?

Explicit scheme : By varying the mesh size, we see that for smaller sizes, the computation time for the usual mass matrix (not diagonal) exceeds that of the lumped mass matrix (diagonal). This I understand. But when the mesh size becomes large the computation time for the lumped mass matrix (diagonal) exceeds that of the usual mass matrix (not diagonal). Why ?