X. Peng et Ars. Ponter, AN EXPERIMENTAL AND THEORETICAL INVESTIGATION OF THE RESPONSE OF BS11STEEL TO CYCLIC LOADING, International journal of solids and structures, 31(6), 1994, pp. 807-822
Citations number
8
Categorie Soggetti
Construcion & Building Technology","Engineering, Civil
This paper contains a detailed experimental investigation of the cycli
c properties of a standard high-carbon pearlitic rail steel (BS11) sub
jected to complex uniaxial cyclic loading. The experiments were design
ed to be either load- or strain-controlled. It is found that the mater
ial response strongly depends on the mean value of stress or plastic s
train as well as its amplitude. In a strain-controlled process, the me
an stress does not reduce to zero but to a value corresponding to the
plastic mean strain assuming the amplitude is kept constant. The speci
men ratchets in the direction of mean stress but the cyclic ratcheting
rate greatly reduces during the cyclic process and ends at a constant
value. There is no sign that the ratcheting would stop, which is a ne
w observed feature different from Bower's observation. The constitutiv
e description proposed by the authors is found to give a good correlat
ion to the experimental observation.