Thin-Wall Experimental
Procedures
- Use the off-axis strain rosette.
- Measure the rosette offset angle with a protractor.
- Connect the strain rosette to the switch and
balance unit, and connect the switch and balance
unit to the strain indicator.
- Zero the amp and set the strain gage factor on
the strain indicator.
- Zero the strain reading for each gage in the
rosette with the switch and balance unit.
- Turn the pump lever clockwise to close the pressure
release valve.
- Use the pump to apply pressure in 200 psi increments up to a maximum
of 2000 psi, taking strain readings
for each gage at each increment.
- Turn the pump lever counter-clockwise to release the
pressure.