deflection in stiffened plate under pressure
deflection in stiffened plate under pressure
(OP)
can anyone point me in the direction of calcs for the deflection of a stiffened plate under normal vacuum.
thanks
scott
thanks
scott
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deflection in stiffened plate under pressure
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RE: deflection in stiffened plate under pressure
RE: deflection in stiffened plate under pressure
RE: deflection in stiffened plate under pressure
____________”thick plate __________#of stiffeners ___________” per stiffener
Ap = cross sectional area of plate within distance b
As = cross sectional area of stiffeners
B = distance between stiffeners
D = distance between center of gravity of panel and that of the stiffener
T = thickness of panel
Is = moment of Inertia of stiffener
Wi = width of stiffener (for inertia of stiffener)
E = modulus of elasticity (28500000 for 304ss)
I = moment of inertia of whole panel stiffened
L = length of panel
Cp = As d + t = distance form neutral axis of whole section to outer fiber of plate
As + Ap 2
Qp = Mmax Cp = maximum stress in outer fibers if panel
I
Mmax = p b L^2
8
Deflection = 5 p b L^4
384 E I
Moment of inertia Wi(T of stiffener)^3
12
Ap =_____________________
As = _____________________
B = ______________________
D = ______________________
T = ______________________
Is = ______________________
L = _______________________
E = _______________________
________________________________________________________________________
I = Is + Ap T^2 + As Ap D^2
12 As + Ap
Max Stress (Qp) = ________________________________________________________________________________________________________________________________________________
Deflection of Stiffened Panel
________________________________________________________________________________________________________________________________________________Max Deflection = _______________________