<DOC>
<DOCNO>
839
</DOCNO>
<TITLE>
the bending stability of thin-- walled unstiffened
circular cylinders including the effects of internal
pressure .
</TITLE>
<AUTHOR>
suer,h.s., harris,l.a., skene,w.t. and benjamin,r.j.
</AUTHOR>
<BIBLIO>
j. ae. scs. 25, 1958.
</BIBLIO>
<TEXT>
  in a recent paper, the authors presented a statistical, semiempirical
design procedure for the determination of the buckling
strength of unpressurized and pressurized cylinders under axial
compression .  this procedure has been extended in the present
paper to the bending of unpressurized and pressurized cylindrical
shells and allows the calculation of the critical bending stress with
a knowledge of the cylinder geometry and the internal pressure
only .
  because no published data could be found, an extensive series
of bending tests of pressurized cylinders has been performed .
these new data for pressurized cylinders are treated semiempirically
together with all of the other known test data for unpressurized
cylinders .  best-fit curves are presented using applicable
theoretical parameters .  design curves for determining the
critical buckling stress for unpressurized and pressurized cylinders
in bending are then developed as 90 per cent probability curves
from the test data .
</TEXT>
</DOC>
