TY - JOUR
T1 - Constitutive modeling of Aluminum Alloy 7050 cyclic mean stress relaxation and ratcheting
AU - Kourousis, Kyriakos I.
AU - Dafalias, Yannis F.
PY - 2013
Y1 - 2013
N2 - The challenge of describing in a generalized mathematical pattern the inelastic behavior of metals has led to the development of several constitutive models, especially in the field of cyclic plasticity, where phenomena with particular importance to low-cycle fatigue appear. Significant research efforts have been undertaken in studying and simulating the cyclic elastoplastic response of steels, while light metals, like aluminum and titanium, have attracted less attention. This paper provides a preliminary examination on the capacity of the Multi-component Armstrong and Frederick Multiplicative (MAFM) model to simulate effectively the cyclic mean stress relaxation and ratcheting of Aluminum Alloy 7050. The derived results indicate that the model is capable to describe successfully the complex cyclic plasticity phenomena exhibited by this alloy.
AB - The challenge of describing in a generalized mathematical pattern the inelastic behavior of metals has led to the development of several constitutive models, especially in the field of cyclic plasticity, where phenomena with particular importance to low-cycle fatigue appear. Significant research efforts have been undertaken in studying and simulating the cyclic elastoplastic response of steels, while light metals, like aluminum and titanium, have attracted less attention. This paper provides a preliminary examination on the capacity of the Multi-component Armstrong and Frederick Multiplicative (MAFM) model to simulate effectively the cyclic mean stress relaxation and ratcheting of Aluminum Alloy 7050. The derived results indicate that the model is capable to describe successfully the complex cyclic plasticity phenomena exhibited by this alloy.
KW - Aluminum alloy
KW - Constitutive modeling
KW - Cyclic plasticity
KW - Inelasticity
KW - Mean stress relaxation
UR - http://www.scopus.com/inward/record.url?scp=84884571271&partnerID=8YFLogxK
U2 - 10.1016/j.mechrescom.2013.08.001
DO - 10.1016/j.mechrescom.2013.08.001
M3 - Article
AN - SCOPUS:84884571271
SN - 0093-6413
VL - 53
SP - 53
EP - 56
JO - Mechanics Research Communications
JF - Mechanics Research Communications
ER -