Designing: Roll Cage with CAD+FE, Testing New Materials

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Discussion Overview

The discussion revolves around the design of a roll cage using CAD and finite element analysis (FEA), with a focus on exploring and testing new materials suitable for construction. Participants share insights on commonly used materials and suggest alternatives.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant lists commonly used materials for roll cages, including CDS Carbon Steel, ERW Mild Steel, DOM Mild Steel, Cr (Chrome Molybdenum) Steel, T-45, and 1020 Grade Mild Steel CDW.
  • Another participant suggests that Cromoly and DOM are the most commonly used materials and proposes considering aircraft-grade Titanium or Aluminum alloys, noting the importance of availability in tube form.
  • A different participant raises the possibility of using carbon composites, expressing uncertainty about their stiffness but suggesting it could be worth investigating.

Areas of Agreement / Disagreement

Participants generally agree on the common materials used for roll cages, but there are multiple competing views regarding the suitability of alternative materials, such as aircraft-grade alloys and carbon composites. The discussion remains unresolved regarding the best material choice.

Contextual Notes

Participants express uncertainty about the stiffness of carbon composites and the availability of certain alloys in tube form, indicating potential limitations in material selection.

OutCell
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I am designing a Roll Cage (Using CAD+FE) and trying out new materials for testing/analysis. Commonly used materials i found are:

* CDS Carbon Steel
* ERW Mild Steel
* DOM Mild Steel
* Cr (Chrome Molybdenum) Steel
* T-45
* 1020 Grade Mild Steel CDW


Anybody knows any other suitable material i could use? It would be highly appreciated :)

OutCell
 
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OutCell said:
I am designing a Roll Cage (Using CAD+FE) and trying out new materials for testing/analysis. Commonly used materials i found are:

* CDS Carbon Steel
* ERW Mild Steel
* DOM Mild Steel
* Cr (Chrome Molybdenum) Steel
* T-45
* 1020 Grade Mild Steel CDW


Anybody knows any other suitable material i could use? It would be highly appreciated :)

OutCell

Cromoly and Dom are the most commonly use IIRC. You might try some aircraft-grate Titanium or Aluminum alloys to see if there's one that would work (and is available in tube form).

Look up MIL-HDBK-5J for a nice listing of aircraft-grade Aluminum and Titanium alloys.
 
Mech_Engineer said:
Cromoly and Dom are the most commonly use IIRC. You might try some aircraft-grate Titanium or Aluminum alloys to see if there's one that would work (and is available in tube form).

Look up MIL-HDBK-5J for a nice listing of aircraft-grade Aluminum and Titanium alloys.

Thanks mate. I will give that a search
 
Maybe carbon composites? I somehow don't think that they'd have the required stiffness, but it might be worth investigating.
 
Danger said:
Maybe carbon composites? I somehow don't think that they'd have the required stiffness, but it might be worth investigating.

I will look into that too. thanks mate, appreciate it :)
 

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