Unformatted text preview: PROBLEM 7.115 7.115 The pipe shown was fabricated by welding strips of plate along a helix
forming an angle [3 with a transverse plane. Determine the largest value of B that can
be used if the normal stress perpendicular to the weld is not to be larger than 85
percent ofthe maximum stress in the pipe. SOLUTION 7.116 The pipe shewnhas adlameter of 600 mm and was ﬁabrieatedbyw’elding strips
of lO-mm-thiek plate along a helix forming an angle B = 25° with a transverse plane.
Knowingthat the ultimate normal stress 'eular to the weld is 450 MPa and that
a factor of safety of 6.0 is desired, detemune the largest allowable gage primate that can beused. SOLUTION P : (7mm) _
(O-=I|u1l(2‘io) ' ...
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- Summer '10