Title :
Uniaxial stress-strain relation in plastic-damage models for concrete based on localized failure
Author :
Ji Zhang ; Zhang, Ji ; Huang, Cai-Ping
Author_Institution :
Sch. of Civil Eng. & Mech., Huazhong Univ. of Sci. & Technol., Wuhan, China
Abstract :
Concrete fails in a localized pattern. In this paper, a uniaxial stress-strain relation incorporating hardening and stiffness degradation is developed for plastic-damage constitutive models for concrete, which reduces mesh sensitivity in the localized strain softening process, while a reasonable stress-strain curve is maintained for the uniform strain hardening process. The proposed formulation can be used in the numerical analysis of concrete structures assuming localized failure.
Keywords :
concrete; failure (mechanical); failure analysis; plastic deformation; stress-strain relations; concrete fail; concrete structures; localized failure; localized pattern; localized strain softening process; mesh sensitivity; numerical analysis; plastic-damage constitutive model; plastic-damage model; stiffness degradation; strain hardening process; stress-strain curve; uniaxial stress-strain relation; Building materials; Capacitive sensors; Concrete; Couplings; Degradation; Numerical simulation; Plastics; Softening; Tensile stress; Uniaxial strain; concrete structures; localized failure; numerical simulation; plastic-damage model; stress-strain relation;
Conference_Titel :
Mechanic Automation and Control Engineering (MACE), 2010 International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-1-4244-7737-1
DOI :
10.1109/MACE.2010.5535661
