Use of stochastic finite element method for sensitivity analysis

被引：0

作者：

Parvini, M ^{[1
]}

Stolle, D ^{[1
]}

机构：

[1] McMaster Univ, Dept Civil Engn, Hamilton, ON, Canada

来源：

COMPUTATIONAL INTELLIGENCE APPLICATIONS IN PAVEMENT AND GEOMECHANICAL SYSTEMS | 2000年

关键词：

D O I：

暂无

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

Sensitivity analysis may be used, in the context of soil mechanics, to find the contribution of each system component to the total stiffness of the structure. This paper introduces an alternative approach using the stochastic finite element method (SFEM). Through this method, the variations in input and output variables are utilized to define a factor referred to as contribution ratio. It is shown that the contribution ratio is a measure of the sensitivity of the displacement response of a system to the uncertainties in its material properties. The method is applied to a pile foundation as well as to a spread footing problem to determine the sensitivity of the foundation response to the uncertainties associated with the elastic modulus of each soil layer.

引用

页码：57 / 65

页数：9