<DOC>
<DOCNO>
823
</DOCNO>
<TITLE>
plastic torsional buckling strength of cylinders including
the effects of imperfections .
</TITLE>
<AUTHOR>
lee,l.h.n. and ades,c.s.
</AUTHOR>
<BIBLIO>
j. ae. scs. 24, 1957, 241.
</BIBLIO>
<TEXT>
  the torsional buckling strength of a cylinder in the plastic
range has been determined .  an energy solution and a more exact
solution, both based on a plastic stress-strain relationship given
by the simple deformation theory, are presented .  close agreement
between the two solutions is found .  the effects of large
deflections and imperfections on buckling strength are analyzed .
for two groups of experimental results used for comparison, the
effects of geometrical imperfections in the plastic range are
negligible .  the theoretical results are found to be in good agreement
with the experimental results .
</TEXT>
</DOC>
