Research Article

Experimental Study of the Low-Cycle Fatigue in Double-Walled Hollow Pipe Members

Table 2

Material performance parameters of specimens.

Number (%)ξfyi (MPa)fyo (MPa)fui (MPa)fuo (MPa)Ei (MPa)Eo (MPa)fcu (MPa)

DWHP-15.9690.423012884424071.56E51.77E563.43
DWHP-25.9690.643012884424071.56E51.77E542.07
DWHP-37.6901.653012884424071.56E51.77E542.07