Page 230 - Pressure Vessel Design Manual
P. 230
208 Pressure Vessel Design Manual
PROCEDURE 4-2
DESIGN OF CONE-CYLINDER INTERSECTIONS [21
Notation H, =circumferential load due to internal or
external pressure, lb/in.-circumference
P, = equivalent internal pressure, psi FL1-2 =total longitudinal load on cylinder at
P =internal pressure, psi Elevation 1 or 2, lb/in.-circumference
P, = external pressure, psi FLC = longitudinal load in cone, lb/in.-circumfer-
= longitudinal force due to internal or exter- ence
nal pressure, lb/in.-circumference f, = equivalent axial load at junction of small
A = ASME external pressure factor end, lbhn.
A, =cross-sectional area of ring, in.' fL=equivalent axial load at junction of large
end, lb/in.
A, =excess metal area available, in2
El-2 =joint efficiency of longitudinal welded joints
AT =equivalent area of composite shell, cone,
and ring, in.2 in shell or cone
A, = required area of reinforcement at small end EI;,EC,ER = modulus of elasticity of shell, cone and ring,
of cone, in.2 respectively, at design temperature, psi
AL = required area of reinforcement at large end Ss,S&R =allowable stress, tension, of shell, cone and
of cone, in.' ring, respectively, at design temperature,
psi
A, = minimum required cross-sectional area of
ring, in.' Wl.2 =dead weight at Elevation 1 or 2, lb
B = allowable longitudinal compressive stress, OL = longitudinal stress in shell, psi
psi
cLC = longitudinal stress in cone, psi
M1-2 = longitudinal bending moment due to wind
or seismic at Elevation 1 or 2, in.-lb o, = circumferential stress, psi
M = equivalent radius of large end, in. I = moment of inertia of ring, in.4
N =equivalent radius of small end, in. I, = moment of inertia required of ring, ine4
VI-4 =longitudinal loads due to weight plus t, =excess metal thickness available for rein-
moment, lb/in.-circumference
forcement, in.
Hp1.2 = radial thrust due to internal or external t, = thickness required, shell, in.
pressure, lb/in.-circumference
t,, =thickness required, cone, in.
H1.4 = radial thrust due to weight and moment, lb/
in.-circumference A,m,K,X,Y = factors as defined herein
