Table 7 Air material parameters.
From: Damage and reliability analysis of double-arch tunnel without a middle pilot tunnel under blast load
Density ρa/kg·m3 | Internal energy EaQ/Gpa | Initial relative volume Va0 | Coefficients of the equation of state | ||||||
|---|---|---|---|---|---|---|---|---|---|
C0 | C1 | C2 | C3 | C4 | C5 | C6 | |||
1.29 | 2.5e-6 | 1 | 0 | 0.4 | 0 | ||||
