o1 A cylinder for carrying a static pressure of 12 bar is shown. (1 bar 100kPa)

Question

o1 A cylinder for carrying a static pressure of 12 bar is shown. (1 bar 100kPa) The internal diameter of the cylinder is 1000 mm and a bolt pitch circle diameter of De -1160 mm may be assumed. The bolts available have material properties of Sut900,SP-650,s,- 140 MPa . Apply a factor of safety o°against bolt tensile failure and 3 against joint separation. Assum e the bolts carry 32%of the external load and for a reusable application. a) A statement is made that "The more the bolts are tightened the higher the joint constant C". Explain in 30 words or less why you agree or disagree with the statement Submit a suitable bolt designation and number of bolts for the cylinder cover, based on bolt tensile failure and bolt spacing condition. Explain in 25 words or less why a gasket is needed between the cylinder body and cover. b) c) Bolt Tensile Pit Cylinder diamee 1.0m diameter, stress area, Cover plate 12 14 16 20 24 84.3 115 157 245 353 2 Bol: PCD-1.160 LDC 26 dn NsCP Ns (1-C)P aSp

Explanation / Answer

a) AS per design the joint can sustain with specific fastners to apply the required clamp load at 60% below the fastener's yield point othwerwise will cause the bolt to break at its tnesile point.

c) to ensure maximum compression and avoid leakge

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