How do you design a gasketed bolted joint for a pressure vessel flange?

Design follows ASME method: Operating bolt load W_o = H + Hp = (pi/4)G^2.P + 2.b.pi.G.m.P, where H is hydrostatic force, G is gasket diameter, P is pressure, b is effective gasket width, m is gasket factor. Gasket seating load W_g = pi.b.G.y, where y is minimum seating stress. Required bolt area Ab = max(W_o, W_g)/Sa. Verify gasket crushing: actual seating stress must exceed y but not crush stress. Account for flange rotation, bolt spacing, and thermal effects. Select appropriate gasket material (m, y values) for media and temperature.