Title: Prediction of uncertain structural behaviour and robust design

Authors: Jan-Uwe Sickert, Steffen Freitag, Wolfgang Graf

Addresses: Institute for Structural Analysis, Department of Civil Engineering, Technische Universitat Dresden, Dresden 01062, Germany. ' Institute for Structural Analysis, Department of Civil Engineering, Technische Universitat Dresden, Dresden 01062, Germany. ' Institute for Structural Analysis, Department of Civil Engineering, Technische Universitat Dresden, Dresden 01062, Germany

Abstract: Robust design of structures presupposes the prediction of time-dependent structural behaviour and the quantitative assessment of robustness. Thereby, the uncertainty has to be considered by means of adequate data models selected in accordance with the available information. On the basis of the generalised uncertainty model fuzzy randomness, model-based, model-free and hybrid approaches for the prediction of uncertain structural behaviour are presented in this paper. The introduced robustness measure is capable to assess the robustness under consideration of fuzzy random structural responses.

Keywords: fuzzy randomness; fuzzy analysis; artificial neural networks; ANNs; imprecise data; robustness measures; uncertain structural behaviour; robust design; structural design; uncertainty; fuzzy random structural responses.

DOI: 10.1504/IJRS.2011.041185

International Journal of Reliability and Safety, 2011 Vol.5 No.3/4, pp.358 - 377

Available online: 11 Jul 2011 *

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