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Nonlinear structural simulations.

Examples

Get started with basic examples

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.

Plane • Static • Loads

Plane bending

A plane cantilever is subjected to a transverse load at the tip.

More Examples

Features

Interactive

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

Example

Interoperable

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

Example

Interactive

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

Example

Interoperable

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

Example

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 xcae .

Contribute

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.

Explore examples

xcae

Import models from commercial pre-processors.

Example