UNCERTAINTY REPRESENTATION MODELS IN THE
FINITE ELEMENT ANALYSIS
Author(s)
Beatriz de Souza, Leite P. de Lima and Nelson F. Favilla Ebecken
Abstract
- Uncertainty in structural engineering analysis exists in the
architecture of a structural system, its basic parameters, the information
resulting from the abstracted aspects of the system, and the non abstracted or
unknown aspects of the system. Also, uncertainty is present as a result of
prediction models, analysis and design of structures, and general lack of
knowledge in the behavior of real structures.
INTRODUCTION
The uncertainty of a system parameter may be attributed to cognitive and non-
cognitive sources. The cognitive sources include uncertainty due to imprecise
and vague information and are submitted to subjective judgment, the
probability and statistics axioms are limited to treat this type of uncertainty, so
the theory of Fuzzy Sets may be applied. The non-cognitive sources include
the system parameters
Keywords
Related Book
Other papers in this volume
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