Test Specimen Material: Al6061-T6 Seamless Tube (manufacturer's data sheet)
Stress Strain Curve: pdf,txt (Reference: Aerospace Structural Metals
Handbook, 1997 Edition, Code 3206, p.6)
Young's Modulus: 69 GPa (from ASM Handbook. Same value in Matweb)
Density: 2780 kg/m3 (from ASM Handbook. This value is 2%
higher than manufacturer's value)
Poisson's Ratio: 0.33 (from ASM Handbook. Same value in Matweb)
Tube Length: 0.610 m
Tube Outer Diameter: 41.28 mm
Wall Thickness: 0.89 mm
Mixture: Stoichiometric Ethylene + Oxygen (C2H4 +3O2)
Tube Initial Internal Absolute Pressure: 80 kPa (Uncertainty = 0.13
kPa/min over 10 mins = 1.3 kPa, or 1.6%)
Initial Temperature: Room Temperature
Chapman-Jouguet Pressure (STANJAN calculation): 2.6 MPa (Uncertainty =
1.6%)
Chapman-Jouguet Velocity (STANJAN calculation): 2365 m/s (Measured
velocity was 2326 m/s, or 1.7% slower than STANJAN value. Maximum
deviation of 20 different measured velocities from STANJAN values was
3.3%)
Number of Strain Gages on Specimen Tube: 6
Strain Measurement Orientation: Hoop
Strain Gage Locations: Strain gages 1 through 4 are located along an
axial line on the outer tube surface at 282 mm, 297 mm, 312 mm, 328 mm
from the left end of the specimen. Strain gage 5 is located at 90o
from this axial line at 305 mm from the left end of the specimen, and
strain gage 6 at 180o at 305 mm.
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