Methods for improving the computational performance of sequentially linear analysis
Wouter Swart

Supervisor TU Delft: Martin van Gijzen

Site of the project:
Delftechpark 19
2628 XJ Delft

start of the project: December 2017

In February 2018 the Interim Thesis has appeared and a presentation has been given.

The Master project has been finished in August 2018 by the completion of the Masters Thesis and a final presentation has been given.

For working address etc. we refer to our alumnipage.

Summary of the master project:
Sequential linear analysis is a new simulation approach for analysis of mechanical behavior of brittle structures which is based on finite-element analysis. Where in the traditional iterative incremental approaches a consistent configuration is searched with predefined load-increments, in the sequential linear analysis the damage is incremented. A practical advantage of sequential linear analysis is that it is very robust and can handle very brittle behavior of structures. In the sequential linear approach a large set of linear equations must be solved repetitively, where each time the matrix is changed only locally. In the present implementation in the DIANA software every time the full matrix is inverted, which is very inefficient. The project will focus on the question how to reduce the analysis time for sequential linear analysis.

Contact information: Kees Vuik

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