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The behaviour of pressurised plain pipework subjected to simulated seismic loading
Author(s) -
Moreton D.N.,
Yahiaoui K.,
Moffat D.G.,
Machin H.C.,
Amesbury L.A.
Publication year - 1994
Publication title -
strain
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.477
H-Index - 47
eISSN - 1475-1305
pISSN - 0039-2103
DOI - 10.1111/j.1475-1305.1994.tb00919.x
Subject(s) - materials science , bending moment , bending , swelling , composite material , structural engineering , engineering
A series of simulated seismic tests have been conducted using mild steel and stainless steel plain pipe specimens. These specimens were pressurised and subjected to fully reversed cyclic bending moments at frequencies of about 5 Hz. The bending moments and surface strains on the pipe wall were monitored and are reported here. Significant ratchetting was observed which, in the case of the mild steel specimens, lead to gross swelling and eventual failure. Although ratchetting was observed in the stainless steel specimens it was not so pronounced and failure appeared to be by low cycle fatigue.