Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A plasticity and anisotropic damage model for plain concrete
A plastic-damage constitutive model for plain concrete is developed in this work. Anisotropic damage with a plasticity yield criterion and a damage criterion are introduced to be able to adequately describe the plastic and damage behavior of concrete. Moreover, in order to account for different effects under tensile and compressive loadings, two damage criteria are used: one for compression and a second for tension such that the total stress is decomposed into tensile and compressive components. Stiffness recovery caused by crack opening/closing is also incorporated. The strain equivalence hypothesis is used in deriving the constitutive equations such that the strains in the effective (undamaged) and damaged configurations are set equal. This leads to a decoupled algorithm for the effective stress computation and the damage evolution. It is also shown that the proposed constitutive relations comply with the laws of thermodynamics. A detailed numerical algorithm is coded using the user subroutine UMAT and then implemented in the advanced finite element program ABAQUS. The numerical simulations are shown for uniaxial and biaxial tension and compression. The results show very good correlation with the experimental data.
A plasticity and anisotropic damage model for plain concrete
A plastic-damage constitutive model for plain concrete is developed in this work. Anisotropic damage with a plasticity yield criterion and a damage criterion are introduced to be able to adequately describe the plastic and damage behavior of concrete. Moreover, in order to account for different effects under tensile and compressive loadings, two damage criteria are used: one for compression and a second for tension such that the total stress is decomposed into tensile and compressive components. Stiffness recovery caused by crack opening/closing is also incorporated. The strain equivalence hypothesis is used in deriving the constitutive equations such that the strains in the effective (undamaged) and damaged configurations are set equal. This leads to a decoupled algorithm for the effective stress computation and the damage evolution. It is also shown that the proposed constitutive relations comply with the laws of thermodynamics. A detailed numerical algorithm is coded using the user subroutine UMAT and then implemented in the advanced finite element program ABAQUS. The numerical simulations are shown for uniaxial and biaxial tension and compression. The results show very good correlation with the experimental data.
A plasticity and anisotropic damage model for plain concrete
Ein Modell der Plastizität und anistropen Schädigung für unbewehrten Beton
Cicekli, Umit (Autor:in) / Voyiadjis, George Z. (Autor:in) / Abu Al-Rub, Rashid K. (Autor:in)
International Journal of Plasticity ; 23 ; 1874-1900
2007
27 Seiten, 56 Quellen
Aufsatz (Zeitschrift)
Englisch
Anisotropie , mathematisches Modell , Plastizität , Steifigkeit , Zugdehnung , Schädigungsmechanismus , Beton , plastische Verformung , Zugbeanspruchung , Druckbeanspruchung , Rissöffnung , Rissschließungseffekt , Algorithmus , Spannungsberechnung , numerisches Verfahren , Finite-Elemente-Methode , Modellsimulation , Theorie-Experiment-Vergleich
A plasticity and anisotropic damage model for plain concrete
| British Library Online Contents | 2007
A two-surface anisotropic damage/plasticity model for plain concrete
| British Library Conference Proceedings | 2001
Anisotropic damage-plasticity model for concrete
| British Library Online Contents | 2008
| British Library Online Contents | 2010
Anisotropic damage model for the multiaxial static and fatigue behaviour of plain concrete
| British Library Online Contents | 1996