How Thick Should Composite Panels Be to Replace Aluminum in Structural Designs?

Click For Summary

Discussion Overview

The discussion revolves around determining the appropriate thickness of composite panels to replace aluminum in structural designs, specifically under a distributed load of 200 psf. Participants explore modeling techniques, material properties, and load considerations relevant to structural engineering.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested
  • Mathematical reasoning

Main Points Raised

  • One participant seeks guidance on calculating the required thickness of composite wall paneling, noting the dependency on material properties and expressing uncertainty about modeling the structure and determining its moment of inertia.
  • Another participant suggests using finite element modeling (FEM) software like ANSYS to analyze the structure under the specified load, asking for recommendations on suitable programs and tutorials.
  • A third participant emphasizes the importance of understanding the types of loads the panel will face, suggesting that this understanding will inform the design approach, whether through software or manual calculations.
  • One participant mentions that the moment of inertia is contingent on the section of the object and advises analyzing different sections to find an optimal design, indicating that relevant formulations are available online.

Areas of Agreement / Disagreement

Participants express varying approaches to the problem, with no consensus on a specific method or solution for determining the panel thickness. Different perspectives on load considerations and modeling techniques are presented.

Contextual Notes

Participants highlight the need for clarity on load types and the importance of section analysis, indicating that assumptions about material properties and load conditions are critical to the discussion.

Who May Find This Useful

Individuals interested in structural engineering, composite materials, and finite element analysis may find this discussion relevant.

M.D.G
Messages
18
Reaction score
0
For a summer job I am employed to look into the use of composite paneling in place of sheet aluminum with stiffeners. I am suppose to find the required thickness of composite wall paneling in order to make a structure such as the one attached. Obviously it will depending on the material properties of the panel, however assuming I know those, do you have any ideas on how I would go about this. I would be designing for a distributed load of 200 psf. I could do this if it was a uniformly distributed load or point load and a beam, but I am having trouble modeling this structure. For example I have no clue what this objects moment of inertia is, which is required. Any ideas?
 

Attachments

Engineering news on Phys.org
Just to update this, I have done some searching on the forum about the use of FEM. Would the best course of action to solving this be to model the part in a program like ANSYS? I know the distributed load and the part dimensions (except for the thickness, this is what I am trying to calculate) Any recommenatons on programs or tutorial for software that would be good for this application would be much appreciated.
 
M.D.G said:
For a summer job I am employed to look into the use of composite paneling in place of sheet aluminum with stiffeners. I am suppose to find the required thickness of composite wall paneling in order to make a structure such as the one attached. Obviously it will depending on the material properties of the panel, however assuming I know those, do you have any ideas on how I would go about this. I would be designing for a distributed load of 200 psf. I could do this if it was a uniformly distributed load or point load and a beam, but I am having trouble modeling this structure. For example I have no clue what this objects moment of inertia is, which is required. Any ideas?

hello there,
maybe i can help you. first make it clear about the use of that panel you are talking about like what kind of SUPPOSED loads are going to act on it. for example, a Masonary wall which is constantly subjected to wind pressures apart from the active Earth pressure it has to bear.

after getting at least the nature of the loads, you can approach the designing by either using a software or calculating it manually. but mostly do software after at least you have tried to get some basic calculations.

Softwares for the same are ANSYS, COSMOWORKS, NX etc.
 
M I of the object completely depends on the section. Try to analyse diff sections and get an optimum one. the formulations for the same are easily available on the net
 

Similar threads

  • · Replies 4 ·
Replies
4
Views
3K
Replies
3
Views
3K
Replies
33
Views
6K
  • · Replies 1 ·
Replies
1
Views
4K
Replies
6
Views
5K
Replies
1
Views
2K
  • · Replies 3 ·
Replies
3
Views
15K
Replies
6
Views
3K
Replies
3
Views
2K
  • · Replies 12 ·
Replies
12
Views
10K