OVERVIEW OF EXPLICIT AND IMPLICIT DYNAMIC FEM ANALYSIS IN PAK SOFTWARE
Dynamic analysis of engineering structures is essential in the design process, providing insights into their behavior under various loading conditions. This paper focuses on the comparative study of implicit and explicit dynamic analysis methods using the PAK software and FEMAP with the Nastran software. Both methods have distinct advantages and di...
By Vladimir Dunić, Miloš Pešić, Miroslav Živković, Radovan Slavković
VARIOUS FINITE ELEMENTS IN NUMERICAL ANALYSIS OF UNIAXIAL TESTS FOR THE CONCRETE DAMAGED PLASTICITY (CDP) CONSTITUTIVE MODEL
The concrete damaged plasticity (CDP) model is one of the most popular constitutive models implemented into various Finite Element Method software. The application to the real structures is documented in the literature, but still there are some doubts about the response in combination with the various finite elements. Simple benchmark examples simu...
By Vladimir Dunić, Nenad Grujović, Aleksandar Bodić, Dragan Rakić, Miroslav Živković
MODELING OF DAMAGED CONCRETE USING INITIAL DEGRADATION PARAMETER
A stress-strain history in the material of real concrete structures is usually unknown. An effect of concrete degradation is analyzed to describe how the initial degradation parameter can describe the stress-strain history. The idea is to introduce the initial damage of the structure by the degradation parameter to calculate the internal variables ...
By Dragan Rakić, Vladimir Dunić, Miroslav Živković, Nenad Grujović, Dejan Divac