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A damage-plasticity model for the dynamic failure of concrete

Peter Grassl ; Ulrika Nyström (Institutionen för bygg- och miljöteknik, Konstruktionsteknik) ; Rasmus Rempling (Institutionen för bygg- och miljöteknik, Konstruktionsteknik) ; Kent Gylltoft (Institutionen för bygg- och miljöteknik, Konstruktionsteknik)
8th International Conference on Structural Dynamics, Leuven, Belgium (2011)
[Konferensbidrag, refereegranskat]

A constitutive model based on the combination of damage mechanics and plasticity is developed to analyse concrete structures subjected to dynamic loading. The aim is to obtain a model, which requires input parameters with clear physical meanings. The model should describe the important characteristics of concrete subjected to multiaxial and rate-depending loading. This is achieved by combining an effective stress based plasticity model with an isotropic damage model based on plastic and elastic strain measures. The model response in tension, uni-, bi- and tri-axial compression is compared to experimental results in the literature.

Nyckelord: Concrete; Strain Rate Dependence; Fracture; Plasticity; Damage

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Denna post skapades 2012-04-27. Senast ändrad 2014-11-10.
CPL Pubid: 157123