Proceedings Vol. 22 (2016)
ENGINEERING MECHANICS 2016
May 9 – 12, 2016, Svratka, Czech Republic
Copyright © 2016 Institute of Thermomechanics, Academy of Sciences of the Czech Republic, v.v.i., Prague
ISSN 1805-8248 (printed)
ISSN 1805-8256 (electronic)
list of papers scientific commitee
pages 165 - 168, full text
Two Drucker-Prager criteria are employed to define a nonlinear material model for concrete that is capable to solve tri-axial analysis of plasticity. The model consists of one Drucker-Prager criterion set to approximate tensile stress area and the other to describe compression area. The first derivative singularities are treated by using an imaginary tangent as a local yield function and the model is modified for specific application for the plane stress state. The model is implemented into the SIFEL solver using the finite element method.
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