Download - Barrel stress in a 12lb Napoleonic cannon
Transcript
Napoleonic 12 pound canonbarrel FEA stress analysis
11/9/17 rev A
Don Blanchet
3B Associates
Prepared for:US-M39143-1043
Solidworks model
This Photo by Unknown Author is licensed under CC BY
Muzzle velocity 1500 ft/sec
Barrel model
Material cast iron
Meshed FEA model1,500,000 degrees of freedom
Loads and supports internal pressure in rifled barrel
Stress contours, psisection through centerline
Barrel deflection ~.020 inch
Observations
Barrel deflection needs to be compensated in sighting.
Ship roll during repeated broadside firing would be orders of magnitude greater.
World war I ships introduced gyroscopic gun mount stabilization.
