66
3 Elasticity
−1
−0.5
0
0.5
1
−1
0.5
0
0.5
1
ψ( )
1
2
2
−1
−0.5
0
0.5
1
−1
−0.5
0
0.5
1
σ( )
−1
−0.5
0
0.5
1
−1
0.5
0
0.5
1
σ
ψ
∗ (σ)
1
2
σ
2
/E
−1
−0.5
0
0.5
1
−1
−0.5
0
0.5
1
σ
(σ)
σ/E
Fig. 3.2 Specific Hooke model: Quadratic free energy density ψ( together with resulting linear
σ = σ( and quadratic free enthalpy density ψ ∗ (σ) together with resulting linear =
Table 3.1 Summary of the specific Hooke model