Post processing of shell results at gauss points and at through-the-thickness integration points (fibers).
Post processing of beam-column results by means of a fiber-section plot, that allows the user to visualize results such as strain/stress at each fiber of each gauss points of beam-column elements.
Meshing algorithms in STKO pre-processor. Global and local edge seed, unstructured and structured mesh algorithms, triangle/tetrahedron, quadrilateral/hexahedron, linear and quadratic interpolations.
Post processing of beam-column results by means of a gauss-point plot, that allows the user to visualize results such at each gauss points of beam-column elements.
STKO pre-processing for micro-modeling of masonry structures
STKO Seismic Isolation
Post-processing of a soil-foundation-structure-interaction problem. Visualization of results on solid elements by means of a volume plot.
Example of absorbing boundaries using the VS3D4 element available in OpenSees.
Comparative study of different approches to simulate absorbing boundaries in soil-structure interaction problems.
3D Analysis of Soil-Pile interaction with contact elements.
Simulation SFSI (Soil Foundation Structure Interaction). Courtesy of Jenny Ramirez Calderon – PhD thesis
SFSI: Analysis of the boundary conditions and their application in the case study of a bridge | courtesy of Luca Sallese - master degree |
… features advanced CAD modeling tools, import-export of common CAD file formats, geometry repair tools, and a comprehensive set of meshing algorithms.
… is easily customizable via a python-based scripting interface. So custom components can be easily specified and added to the standard document, to fit the end-user needs.
… can then produce input files for OpenSees with all the information inputed by the user.
Import-export of open file formats (STEP and IGES)
Linear | Quadratic
Uniform by divisions
Uniform by size
Biased by size and bias factor
Biased by number and bias factor
Dual-biased by size and bias factors
2D un-structured for triangles and quadrilaterals
3D un-structured for tetrahedrons
2D structured for triangles and quadrilaterals
3D structured for hexahedrons
Uniaxial | nD
Uniform exitation pattern
Multi-support exitation pattern
… features all common visualization algorithms (edge/surface color map, volume rendering, iso-lines, iso-surfaces, vector plots, etc..). Post processing also includes advanced visualization algorithms for beam/column and shell elements equipped with discretized (fiber) cross sections.
… is easily customizable via a python-based scripting interface. Therefore, results can be estracted and manipulated using custom python-scripts, allowing the end-user to produce custom information.
Finally, STKO uses an efficient opensource third-party database library for storing results. The MPCORecorder is a new recorder class for OpenSees that allows OpenSees to write results data in the format required by STKO.
All these features in one Software: STKO, a revolutionary visualization toolkit for Opensees
FILE AND DATABASES
Save/Load existing post-processor files (restore plots, charts, etc.)
Import of one or multiple MPCO output databases
Surface color map
Volume color map
Beam/Shell fiber-section plot
Extract chart data from database:
From gauss points
Python scripting interface
STKO provides the HDF5 database library on standard and advanced visualization techniques in post-processing and the structure of the proposed file format.
It most of all includes Python-based scripting interface for manipulation and customization of results and the implementation of the new recorder class in OpenSees. STKO shows numerical applications. It also provides examples of soil-structure interactions, visualization of beam and shell data defined at gauss and at sub-integration points. Moreover the management of output database via user-defined scripts, extrapolation and manipulation of data for production of new custom results.