STKO+OpenSees tools for the Analysis of RC and Masonry Structures
Massimo Petracca, PhD., Eng. – Asdea Software
Given the current coronavirus outbreak and the closure of UMinho until further notice, the OpenSees Seminar has been made online.
The online Seminar will be carried out in 3 parts: April 20 (morning and afternoon) and April 22 (morning). The updated flyer is enclosed.
Mon, 20 April 2020 9:30 – 13 14:30 – 18
Morning: 3.5 hours from 9:00 to 13:00 |
Introduction | Introduction |
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Constitutive models | Review of available constitutive models for RC Plastic-Damage 1D/2D/3D continuous models Plastic-Damage 2D/3D interface models IMPL-EX integration scheme. A mixed explicit-implicit integration scheme to improve convergence of strongly nonlinear problems. |
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Coffee Break | 20 mins | |
Modeling a RC frame structure with shear walls | Beam-Column elements with fiber cross section (distributed plasticity) Beam-Column elements with hinges (lumped plasticity) Modeling of beam-column joints Modeling of reinforced RC shear walls |

Afternoon: 3.5 hours from 14:30 to 18:00 |
Constitutive models | Review of available constitutive models for Masonry Plastic-Damage 1D/2D/3D continuous models Plastic-Damage 2D/3D interface models IMPL-EX integration scheme. A mixed explicit-implicit integration scheme to improve convergence of strongly nonlinear problems. |
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Coffee Break | 20 mins. | |
Homogeneous continuum macro-modeling | Equivalent homogeneous modeling with isotropic plastic-damage
model Orthotropic mapper: how to convert a generic nonlinear isotropic model into an orthotropic one How to use micro-models of small specimens to calibrate material parameters for the orthotropic mapper. In-plane and out-of-plane monotonic and cyclic static examples |

Wed, 22 April 2020 9:30
Morning: 3.5 hours from 9:00 to 13:00 |
Micro-modeling | How to model with micro-modeling in Opensees and STKO Continuum vs Interface modeling of mortar joints In-plane and out-of-plane monotonic and cyclic static examples Notes on the shell formulation for a correct out-of-plane behavior in case of micro-modelling |
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Coffee Break | 20 mins. | |
Equivalent frame modeling | Some examples for the equivalent frame method Beam-Column Elements with Fiber Cross Section and zero length | |
Parallel computing | How to run analysis in Parallel with OpenSEES MP + STKO |