×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Comparing a three- layer Sandwich Panel with a one-layer one

Comparing a three- layer Sandwich Panel with a one-layer one

Comparing a three- layer Sandwich Panel with a one-layer one

(OP)
Hi dear friends,

I have modeled and derived equations for a 3 layer sandwich panel ( upper & Lower layers are Aluminium and the core is Carbon/ Epoxy ). I want to validate my results with a one layer panel which is made up of Aluminium.

Is it correct to replace Aluminium properties with properties of 3 layer panel ?! I mean each of three layers have Aluminium properties ?!

RE: Comparing a three- layer Sandwich Panel with a one-layer one

First, curiosity forces me to ask why you would want an Al/CF/Al sandwich.

Second, its not clear to me what you are asking.
If you are asking if it is appropriate to validate your design by doing an analysis of a single piece of aluminum that is as thick as your sandwich the answer would be no, this would obviously neglect the effect of the carbon fiber "core."

If you're asking if it is appropriate to calculate the properties of the sandwich panel as a whole, and use the result as the equivalent moduli for a single orthotropic plate, the answer can be yes, but proceed with caution as many assumptions are made with the simple formulas for equivalent moduli.

A more thorough description of your panel, goals, and application is likely to help get a response from others in the forum.

RE: Comparing a three- layer Sandwich Panel with a one-layer one

before you fabricate this, check the electrical properties.
B.E.

You are judged not by what you know, but by what you can do.

RE: Comparing a three- layer Sandwich Panel with a one-layer one

(OP)
Actually, that wasn't my idea to design a AL/C-Epoxy/AL !! Having a composite course and its assignment, force me to that!!

I derived the equation of motion of this beam ( Vibration analysis !!) and now I want to validate or my results with a one-layer AL beam!! How does it possible?!

RE: Comparing a three- layer Sandwich Panel with a one-layer one

Is this a student posting?
B.E.

You are judged not by what you know, but by what you can do.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources

White Paper – Your Construction ERP RFP Checklist
Selecting business software for a medium to enterprise-sized construction concern is extremely challenging in large part because most enterprise resource planning (ERP) suites originated in the world of repetitive manufacturing and are therefore a poor fit for a project and asset-centric business. However, midsize to large contractors need the predictable, auditable processes that ERP delivers. Download Now

Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close