Dear Steve,
As a non stress(ed) engineer I have a question for the more highly stressed guys.Say we have a 1.5D bend at exactly 90 degrees cold. As it warms, the angle will decrease because there is more metal on the outside of the bend than the inside. Does C2 allow for this?
Ans:
CAESAR-II is based on the principle of "Guided Cantilever Method", in which the
end rotations are not allowed. Hence, in CAESAR-II the inward bending of a bend
due to increase in thermal expansion, is not taken into consideration. The
solver takes into consideration of flexibility factor to calculate end
displacements and sif for calculation of bending stress.
Similarly, it is worth noting:
when we have increase in temperature the bend bends inward and due to warping of
fibres, we have a SIF assiciated with the bend. Does this mean that when the
system is having negative increase in temperature due to opening of bend we
should have Stress RELEAVING factor ?
Regards,
Kaustubh
Received on Fri Apr 19 08:56:00 2002
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