Learning Forum

[kikuji.yuki.r3]

I would like to output Autodyn results to an Excel file.
I am using Autodyn's SPH to perform ultra-high speed collision analysis.
I would like to know data on the physical quantities of each particle, such as speed, energy, mass, momentum, etc.
As shown in the photo below, Autodyn can obtain physical quantity data focusing on a single particle, but I would like a file that compiles data on all particles.
It seems that the physical quantities are probably saved in a file with the extension ".ad", but I cannot obtain the data due to garbled characters.
Ultimately, I would like to plot the results on a graph. (The horizontal axis is the particle position, and the vertical axis is the speed, energy, mass, momentum)

[Erik Kostson]

Hi

I would suggest to post this in the LS-Dyna forum which is also for explicit and Autodyn.

Thank you

 

Erik

[Chris Quan]

You can output grid variables to an Autodyn print file: ident.prt via Output controls in Autodyn GUI. See screen snapshot below. 

From the Output controls, you need to click on Print, change the Output Type to Grid Data, specify how frequent you want to output the results, and click on Grid Variables to select the result variables for output. Finally, you need to save the changes and run the model. The output will be in the ident.prt file and you can use any text editor to retrieve the output for further post-processing.

By default, this will output the selected variables of all nodes in the model to the print file. If you only want to output the results at the selected nodes or particles, you need to click on Parts on the left navigation bar to select the body and then click on Print to define the nodes for output via the range of nodal index numbers. 

Autodyn outputs momentum in Material Summary or Energy Summary. For grid variables, you need to calculate the mass and velocity to get the momentum at each element or node.

 

 

[kikuji.yuki.r3]

Thank you! I appreciate it very much.
If I want to output the mass of particles to calculate the energy (if I want to create a mass distribution), should I check "CELL-MASS" in the solver? Or should I check "VOLUME"?
Thank you in advance.