​
stress (kPa)
5.
initial height of foam a (mm)
h
a
20.
coefficients for foam a
c
1a
​
-1
kPa
​
3.2
c
2a
0.4
c
3a
0.75
initial height of foam b (mm)
h
b
10.
coefficients for foam b
c
1b
​
-1
kPa
​
4.6
c
2b
0.45
c
3b
0.7
initial height of foam c (mm)
h
c
5.
coefficients for foam c
c
1c
​
-1
kPa
​
2.2
c
2c
0.3
c
3c
0.8
axes maxima
strain max.
1.
stress max.
20.