OpenRS 0.3.2

Open Residual Stress analysis suite

Open Residual Stress - a Python application for comparing and tabulating residual stress measurements from multiple sources, ranging from predictive finite element analyses, as well as experimental techniques.

Functionality

This application seeks to ameliorate the current status quo for visualising residual stress fields in engineering components requiring a commercial finite element analysis package. In the same manner as computer aided design (CAD) employs interchange formats, such that component geometries can be shared between various commercial packages, there too is a need for the ability to share stress fields in these components with various stakeholders in the field of residual stress quantification.

The Visualisation ToolKit (VTK) is a powerful tool which has been leveraged for this purpose. Indeed, the free and open source FEA post processor ParaView can be employed, and the present application makes use of VTK data structures, and extensions to navigate, interpolate and extrapolate residual stress predictions and measurements.

Primarily comprising a simplified viewer which allows a user to conduct arbitrary traces of scalar representation of stress fields in components, this repository is also populated with a series of case studies which exemplify how stresses can develop in components, and identify where further measurements need to be carried out.

Overview

Details of how to use the main application are here.

Examples

Details of example components and how to generate their respective predictive models are available here.

Installation

Python package dependencies are available through PyPI by running the following at the command line:

pip install OpenRS

If it is desired to generate finite element models, then it is recommended that either Dassault Systèmes' ABAQUS is available - limited support for CalculiX is currently available. For more information on CalculiX, see http://www.dhondt.de/

Note that scripts for generating the examples are not included as part of the PyPI installer. These can be either copied from OpenRS\examples or from a cloned repository.