APDL - Transient Structural - Exporting stresses over time

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Discussion Overview

The discussion revolves around exporting forces over time in a transient structural analysis using APDL (ANSYS Parametric Design Language). The focus is on extracting force reactions from nodes that are not supported, particularly in the context of a cantilever beam example.

Discussion Character

  • Technical explanation, Homework-related, Debate/contested

Main Points Raised

  • One participant is attempting to export forces over time in a transient analysis but is encountering issues with force reactions showing as zero for unsupported nodes.
  • The participant mentions they can obtain results from supported nodes but not from those that are unsupported.
  • Another participant requests more information and an example to better understand the issue.
  • A further reply reiterates the need for more information and suggests that a simple representation of the element structure could be provided without revealing confidential details.
  • One participant asserts that for a cantilever beam, no nodes should be required between the free end force and the connected end reactions, implying a potential misunderstanding of the structural setup.
  • A later reply claims that the problem is solved and the case is closed, but does not provide details on how the issue was resolved.

Areas of Agreement / Disagreement

The discussion includes multiple viewpoints regarding the extraction of forces and the structural setup, with no clear consensus on the best approach or resolution of the initial problem.

Contextual Notes

Participants express limitations in sharing specific structural details due to confidentiality, which may affect the clarity of the discussion. There are also unresolved aspects regarding the assumptions made about the structural configuration and the expected behavior of the nodes.

Abdullah Kacar
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I'm writing my master thesis and need to export forces over time in Transient analysis.
I tried using the force reaction but it shows the result as zero.
BTW I'm not trying to get the forces from the nodes which is supported, with these i get results.

But with the nodes with no support i get the value 0.

I'm new at APDL coding and I'm in a hurry.

Can somebody help?
Thx.
 
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More information and an example needed for review
 
JBA said:
More information and an example needed for review
I can't share my structure cause it's confidental.
But how would you extract it from a normal cantilever beam fixed at one end, and a force on the other end?
Again, i need the force reaction on the nodes which isn't supported.
 
For a cantilever beam there should not be any nodes required between the free end force(s) and the connected end reaction(s). If your element is somehow different from that, I would think you should be able to give a simple representation of your element structure in question without revealing any confidential information related to the overall structural assembly design.
 
There problem is solved and the case is closed.
 

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