Aluminum and carbon composite modulus of elasticity comparison for a given plate thickness

[Roger314]

Hello, I'm an EE working on a robotics project and need to minimize the mass of a 5 inch squared, 1/4" thick plate currently made of 6061 aluminum by replacing it with a carbon composite plate. How can I best and most simply determine the thickness of a replacement carbon composite plate needed to achieve the same modulus of elasticity as the aluminum plate? I would add an additional thickness to the calculated thickness to add an additional safety margin. Thanks very much in advance for your help.

 

[SWComposites]

Well, do you care about in-plane axial modulus, or bending stiffness?
What composite material are you using - fabric or tape?
What composite layup are you using?
And is your “safety margin” stiffness or strength based?

 

[desertfox]

Hi

This link might help

https://slideplayer.com/slide/5106852/

“Do not worry about your problems with mathematics, I assure you mine are far greater.” Albert Einstein