cancel
Showing results for 
Search instead for 
Did you mean: 

FR4 material

Solution Partner Pioneer Solution Partner Pioneer
Solution Partner Pioneer
Hi,
Do we have FR4 material in femap library ?
Or how to create this material??
1 REPLY

Re: FR4 material

Siemens Phenom Siemens Phenom
Siemens Phenom

FR-4 is not included in our material library.  The base for our library is largelly MIL Handbook 5.  I did find this paper, where an analysis is done with FR-4 as the PCB layer, it has a Modulus, Poisson's Ratio, and thermal expansion number, I don't know if they are correct, but it's a starting point.

 

http://webparts.mentor.com/flotherm/support/supp/flostress/validation/validation.pdf

 

There's a NASA report with some FR-4 properties here -

 

https://ams-02project.jsc.nasa.gov/life_cycle/ACOP_PDR_March2005/Presentations/ACP-RP-CGS-005_is1.pd...

 

Please be cautious using any data like this, one difficulty in FEA is finding the correct material properties to use.

 

Mark.