OpenSeesPL 2.7.6

OpenSeesPL 2.7.6

OpenSeesPL is a graphical user interface (GUI) for OpenSees (Open System for Earthquake Engineering Simulation). While OpenSees itself is a powerful, open-source command-line finite element analysis platform, OpenSeesPL provides a visual environment for building models (including soil-structure interaction), defining complex materials and elements, setting up analyses (especially cyclic and dynamic), and visualizing results. It dramatically lowers the entry barrier for using OpenSees for advanced nonlinear simulations in earthquake engineering and geomechanics.

Primary Users

Key Features & Capabilities

• Visual Model Builder: Graphical interface to create 2D/3D finite element models by drawing nodes, elements, and assigning materials/properties, avoiding manual Tcl scripting.
• Specialized Geotechnical & Structural Elements: Pre-configured settings for common OpenSees elements like beam-columns, trusses, zero-length elements (for springs/hinges), quad/brick elements (for soil continuum), and pressure-dependent multi-yield materials for soil.
• Analysis Setup Wizard: Guided interface for defining static, cyclic pushover, and dynamic (time-history) analysis procedures, including eigenvalue analysis for modal properties.
• Integrated Results Visualization: Built-in tools for plotting hysteretic curves (force-displacement), time-history responses, deformed shapes, and contour plots of stresses/strains directly after analysis.
• Soil-Structure Interaction (SSI) Modeling: Streamlined workflow for creating coupled soil-foundation-structure models, a common and complex task in seismic assessment.
• Export to OpenSees Tcl Script: Translates the graphical model into the standard OpenSees Tcl input script, allowing for transparency, modification, and batch execution.

System Requirements

• OS: Windows 10 or 11 (64-bit). (The core OpenSees engine also runs on Linux/macOS, but the OpenSeesPL GUI is primarily for Windows).
• Backend Requirement: Requires a working installation of OpenSees (the solver executable).
• CPU: 1 GHz processor or faster.
• RAM: 4 GB minimum (8 GB+ recommended for large 3D models).
• Storage: 500 MB free disk space.