ANSYS Basics Help: Is Meshing Necessary?

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Discussion Overview

The discussion revolves around the necessity of meshing in ANSYS, particularly in the context of 2D truss problems and its application in finite element analysis (FEA). Participants explore the technical reasons for meshing and its relevance across different dimensions (1D, 2D, 3D).

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant questions the necessity of meshing in 2D truss problems, noting a discrepancy between their experience and online tutorials that advocate for meshing.
  • Another participant mentions that meshing can be applied in 1D, 2D, or 3D contexts, suggesting that it is not limited to 3D models.
  • A different participant asserts that meshing is required for all simulations using finite element analysis, implying that it is essential for FEA programs.
  • Links to external resources on FEA are provided, although their relevance to the discussion is not evaluated by participants.

Areas of Agreement / Disagreement

Participants express differing views on the necessity of meshing, with some asserting it is essential for FEA while others question its application in specific scenarios like 2D truss problems. The discussion remains unresolved regarding when meshing should be used or not.

Contextual Notes

Participants do not fully explore the assumptions behind when meshing is necessary, nor do they clarify the conditions under which it may not be required. The discussion lacks a definitive consensus on the topic.

ashishvinayak
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I've been studying ANSYS v11 from a book I bought online. I remember doing the same during my graduation. Now that I am studying in-depth I'd like to know why meshing is required (in more technical terms). Also, I am solving 2D truss related problems where I realize meshing is not done. However, when I checked online 2D truss tutorials suggest implementation of meshing. So what's the right answer? Is it necessary?

Ps. Additional question: I assumed that meshing is something which is attributed only to 3D members. Is this correct?

Please help.
 
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Hi!

about meshing, you can do 1D meshing (if you are working in beams) 2D or 3D

I'm not good at ansys, but I've found that preprocessor in Ansys is somehow messy and difficult to get used to. I use a magnificent preprocessor called Ansa (I use one of latest versions, 13.1. If you google around you can find it easy, and the good thing about it, is that has capabilities of beeing preprocessor for Ansys, Abaqus, Nastran, Pam crash, etc etc etc
 
I could use that but that wasn't my question really. I'd like to know when meshing should be used and when it should not be used ?
 
Meshing is required for all simulations using Finite Element Analysis. You will have to use meshing whenever you try and use programs that use FEA.

Some info on FEA http://www.sv.vt.edu/classes/MSE2094_NoteBook/97ClassProj/num/widas/history.html
and the wikipedia article. (Check the references)
http://en.wikipedia.org/wiki/Finite_element_method
 
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