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XC is an open source FEA program designed to solve structural analysis problems.

It's all about developing tools that allow us to keep going forward (much in the sense of designing for strength, economy and beauty) instead of repeating the same old solutions but in a faster way.

How?; allowing to merge the code with other software libraries: machine learning, neural networks, 3D modeling, material libraries, computation fluid dynamics,...

It's based on Python ( script language), Opensees (analysis kernel), CGAL (computational geometry), VTK and matplotlib (for the graphics stuff) and LaTeX for text output.

The program can solve various types of problems, from simple linear static analysis to complex nonlinear simulations. It has a library of finite elements which allows to model various geometries, and multiple material models, allowing its application in various areas of structural analysis.

You can take a look into the Python API documentation here, and to the C++ API documentation here.


  • Analysis of tensegrity structures with XC   Tensegrity structures are usually defined as structural systems that maintain their shape by using a discontinuous set of compressive elements (struts) that are connected to a continuous net of prestressed ...
    Posted May 18, 2017, 11:25 PM by Ana Ortega
  • Analysis of a vibrating string under tension with XC Any motion of a linear system can be resolved into a superposition of modes, combined with appropriate amplitudes and phases.This case of study deals with a flexible string fixed ...
    Posted Apr 2, 2017, 8:32 AM by Ana Ortega
  • Analysis of a building with XC This case of study is taken from the European Commission publication «Eurocode 2: background & applications. Design of concrete buildings. Worked examples». It deals with a six-storey building with two ...
    Posted Feb 21, 2017, 8:39 AM by Ana Ortega
  • The Emperor's New Clothes. The Emperor's New Clothes is one of my favorite tales. I think that this story illustrates quite well the problem of the "invention of the truth" that affects communities ...
    Posted Jan 21, 2017, 9:50 AM by Luis C. Pérez Tato
  • Modelling 'structures in fire' Various thermal models are currently being developed at the University of Edinburgh to provide OpenSees with the capacity to model diverse structures in several different fire benchmark problems and reproduce ...
    Posted Dec 11, 2016, 6:05 AM by Luis C. Pérez Tato
Showing posts 1 - 5 of 23. View more »