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Nonlinear structural simulations.

Examples

Get started with basic examples

Uniaxial Materials

This example introduces the uniaxial material library in OpenSees.

Truss • Python • Tcl

Linear Truss

A finite element model of a simple truss is created, and static analysis is performed.

Frame

Orienting frames in 3D

This example demonstrates how to orient beam elements in 3D.

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Features

Interactive

Easily return stiffness, mass, and damping matrices as NumPy arrays and join meshes without duplicate nodes and constraints.

Check the introduction

Interoperable

Thanks to a rich open-source ecosystem, tools are available for interfacing OpenSees with a wide variety of industry-standard tools.

Ecosystem

Interactive

Easily return stiffness, mass, and damping matrices as NumPy arrays and join meshes without duplicate nodes and constraints.

Check the introduction

Interoperable

Thanks to a rich open-source ecosystem, tools are available for interfacing OpenSees with a wide variety of industry-standard tools.

Ecosystem

An open source ecosystem

OpenSeesRT is open source and maintains its codebase in GitHub . It is supported by a thriving ecosystem of open-source packages, such as osmg , veux , and openbim .

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osmg

osmg is a Python library for generating building models in OpenSees.

Visualization with `veux`

veux is an open-source finite element visualization framework. Using a web-first approach, it provides several functions to simplify the creation of responsive visualizations.

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OpenBIM

Import models from commercial pre-processors.

Example