Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations SE2607 on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Overall Laminate Strain in Femap

Status
Not open for further replies.

martin555

Aerospace
Nov 30, 2018
17
Hi

I am looking to output the overall strain of a laminate in FEMAP.
Looking to either get the max ply strain of the overall strain in FEMAP interface
 
Replies continue below

Recommended for you

What do you mean "overall strain"? Do you mean of all laminate elements?

I was always under the assumption that on an element basis, every ply should have the same strain.
 
every ply should have the same strain only if there are only in-plane loads and the layup is symmetric. If there are bending loads, or unsymmetry, then the strain is linear thru the thickness.
 
if each ply has a different loading then it'll have a different strain. For example ...

1) unidirectional plies under axial load, all plies have the same load/stress/strain
2) a laminate of 0,+45,-45 plies ... under any load each ply will have different load/stress/strain as permitted by the elasticity of the adhesive.

"Wir hoffen, dass dieses Mal alles gut gehen wird!"
General Paulus, Nov 1942, outside Stalingrad after the launch of Operation Uranus.
 
Yes thank you to SWComposites and rb1957 for the clarification. In that case to answer the OP, you would have to envelope the laminate strain results on all the plies in the model.
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor