I'm trying to model the compression behaviour of a foam called Plastazote using finite element analysis. The manufacturer has compression vs load (kPa) data starting from 10% to 50% compression. However, i'm only interested in very small pressures (i.e 0 - 7kPa), which will result in much lower compression thats given in the data (<< 10%). Plastazote is a closed cell, cross linked polyethylene foam. The density i'm using is 15kg/m^3.
Here is the data from the manufacturer (Zote foams),
Applied Pressure (kPa) Compression (%)
26 - 10
45 - 25
75 - 40
107 - 50
I would much appreciate any help, tip or ideas. I am using ANSYS for the analysis.