An automated procedure for interval and fuzzy finite ele- ment analysis
نویسنده
چکیده
This paper describes an automated procedure to model imprecisely defined structures and solve them using the interval and fuzzy finite element methods (IFEM and FFEM). The IFEM and FFEM procedures both require an uncertain FE model as input. Since none of the available preprocessors can generate uncertain FE models, the first part of the research focuses on creating an uncertain FE model based on a deterministic FE model. This is done by adding uncertain parameters and relations linking these uncertain parameters to the FE model properties. The second part of the research focuses on an implementation of the IFEM and FFEM procedures, using an external deterministic FE solver. Finally, the modelling and solving procedure are verified on a small reference model.
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