Gradient-enhanced finite element modelling of cohesive soil and concrete = Gradientowe modele MES dla gruntu spoistego i betonu / Jerzy Pamin, Anna Stankiewicz, Adam Wosatko // W: Recent advances in civil ... więcej

Gradient-enhanced finite element modelling of cohesive soil and concrete = Gradientowe modele MES dla gruntu spoistego i betonu / Jerzy Pamin, Anna Stankiewicz, Adam Wosatko // W: Recent advances in civil engineering : computational methods / ed. by Witold Cecot ; Politechnika Krakowska im. Tadeusza Kościuszki. – Kraków : Wydaw. PK, 2015. – (Monografia / Politechnika Krakowska im. Tadeusza Kościuszki. Inżynieria Lądowa). – S. 43-64 : rys., wykr. – Bibliogr. 70 poz., Abstr., Streszcz. – Seria gł.: Monografia / Politechnika Krakowska im. Tadeusza Kościuszki, ISSN 0860-097X ; 481

In the paper selected aspects of formulation and application of gradient-enhanced models for frictional and quasi-brittle materials are addressed. A general overview of difficulties encountered in the ... więcej

In the paper selected aspects of formulation and application of gradient-enhanced models for frictional and quasi-brittle materials are addressed. A general overview of difficulties encountered in the simulations of localized deformation is first presented. The loss of material stability which is a necessary condition for the localization implies the necessity of upgrading the continuum description, which is called regularization. The theory and application of two-phase Cam-clay gradient plasticity is discussed as an example of soil modelling. Next, the theory of isotropic gradient damage is summarized and dynamic simulations of concrete elements are shown. Owing to the gradient regularization the results obtained using the models are free from pathological discretization sensitivity.