Barrel stress in a 12lb Napoleonic cannon
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FEA used to calculate stress and deflection in a field artillery piece used by Napoleon and in the US civil war
Barrel stress in a 12lb Napoleonic cannon
- 1. Napoleonic 12 pound canon barrel FEA stress analysis 11/9/17 rev A Don Blanchet 3B Associates dwb3298@verizon.net Prepared for: US-M39143-1043
- 2. Solidworks model This Photo by Unknown Author is licensed under CC BY Muzzle velocity 1500 ft/sec
- 3. Barrel model Material cast iron
- 4. Meshed FEA model 1,500,000 degrees of freedom
- 5. Loads and supports internal pressure in rifled barrel
- 6. Stress contours, psi section through centerline
- 7. Barrel deflection ~.020 inch
- 8. 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.