PTV Properties.

The following table contains some useful properties of the pressure vessel and the steel material from which it is constructed.

Table 2: Properties of the PTV and aluminum ingots.

Property

Value
Inner radius ($r_i$).	12.0 in
Outer radius ($r_o$).	18.5 in
Radial distortion at 10 kpsi ($\delta r_o$).	0.008 in
Inside length ($h$).	8.25 ft
Inside usable length.	8.0 ft
Inner surface area ($A_s$).	8370 in$^2$
Water volume ($V$).	26 ft$^3$ (194 gal)
PTV Compressibility ( $\gamma_{_{PTV}}$).	$1.8 \cdot 10^{-7}~\mathrm{psi}^{-1}$
Weight of upper cap ($M_c$).	3650 lbs
Weight of cylindrical shell.	24400 lbs
Weight of lower end cap.	1400 lbs
Total mass of assembly.	15 tons
Modulus of elasticity ($\kappa$).	30 Mpsi
Poisson's ratio ($\sigma$).	0.3
Number of aluminum ingots.	3
Diameter of aluminum ingot.	23 in
Length of aluminum ingot.	24 in
Weight of aluminum ingot.	950 lbs

The main objective of this section is to demonstrate that pressure-induced expansions of the PTV can be neglected because it is virtually incompressible compared to water.