| Full text | |
| Author(s): |
Valdebenito, Marcos A.
[1]
;
Jensen, Hector A.
[1]
;
Wei, Pengfei
[2]
;
Beer, Michael
[3]
;
Beck, Andre T.
[4]
Total Authors: 5
|
| Affiliation: | [1] Univ Tecn Federico Santa Maria, Dept Obras Civiles, Ave Espana 1680, Valparaiso 2390123 - Chile
[2] Northwestern Polytech Univ, Sch Mech Civil Engn & Architecture, Xian 710072 - Peoples R China
[3] Leibniz Univ Hannover, Inst Risk & Reliabil, Callinstr 34, D-30167 Hannover - Germany
[4] Univ Sao Paulo, Dept Struct Engn, Ave Trabalhador Sao Carlense 400, BR-13566590 Sao Carlos, SP - Brazil
Total Affiliations: 4
|
| Document type: | Journal article |
| Source: | ASCE-ASME JOURNAL OF RISK AND UNCERTAINTY IN ENGINEERING SYSTEMS PART B-MECHANICAL ENGINEERING; v. 7, n. 2 JUN 1 2021. |
| Web of Science Citations: | 0 |
| Abstract | |
This contribution proposes a strategy for performing fuzzy analysis of linear static systems applying alpha-level optimization. In order to decrease numerical costs, full system analyses are replaced by a reduced order model that projects the equilibrium equations to a small-dimensional space. The basis associated with the reduced order model is constructed by means of a single analysis of the system plus a sensitivity analysis. This reduced basis is enriched as the alpha-level optimization strategy progresses in order to protect the quality of the approximations provided by the reduced order model. A numerical example shows that with the proposed strategy, it is possible to produce an accurate estimate of the membership function of the response of the system with a limited number of full system analyses. (AU) | |
| FAPESP's process: | 19/13080-9 - Optimal reliability-based design of structural systems considering progressive collapse |
| Grantee: | André Teófilo Beck |
| Support Opportunities: | Regular Research Grants |