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OpenSEES – The Open System For Earthquake Engineering Simulation

The Open System for Earthquake Engineering Simulation (OpenSEES) is a software framework for simulating the seismic response of structural and geotechnical systems. OpenSEES has been developed as the computational platform for research in performance-based earthquake engineering at the Pacific Earthquake Engineering Research Center. OpenSEES is also the simulation component for the NEESit since 2004.

Capabilities

OpenSEES has advanced capabilities for modeling and analyzing the nonlinear response of systems using a wide range of material models, elements, and solution algorithms. The software is designed for parallel computing to allow scalable simulations on high-end computers or for parametric studies.​

Modelling

OpenSEES provides several elements for structural and geotechnical models. A wide range of materials and section models is available.​

Analysis

Nonlinear analysis requires efficient algorithms and solution methods. OpenSEES supports nonlinear static and dynamic analyses by means of state-of-the-art solvers and methods for handling constraints.​

Development Process

OpenSEES is open-source software. Its official website provides information about software architecture, access to the source code and development process.​

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