ABSTRACT
An experimental program on conventional profile-cut and fully welded CHS KT-joints shows a significant reduction in ultimate capacity when joints are exposed to high amplitude low frequency cyclic loading. This reduction is due to incremental collapse when cyclic loads exceed the shakedown limit. It is also observed that the loading history does not have a noticeable effect on shakedown/non-shakedown behaviour of KT-joints, nor on the static strength after a program of cyclic loading.
This paper provides some of the data necessary for the development of rational assessment of tubular joint capacity taking account of variable repeated loads.
