(Solved): The gas storage tank is fabricated by bolting together two hemispheres. The internal diameter of th ...

The gas storage tank is fabricated by bolting together two hemispheres. The internal diameter of the tank is $$1.4\mathrm{m}$$ and the wall thickness is $$10\mathrm{mm}$$. Determine the minimum number of bolts required given: Bolt diameter $$=12.0\mathrm{mm}$$ Bolt allowable stress $$=350\mathrm{MPa}$$ Tank internal pressure $$=0.625\mathrm{MPa}$$ Bolt diameter $$=12.0\mathrm{mm}$$ Bolt allowable stress $$=350\mathrm{MPa}$$ Tank internal pressure $$=0.625\mathrm{MPa}$$ 12 bolts 15 bolts 18 bolts 21 bolts 25 bolts 29 bolts 32 bolts