Civil and Environmental Engineering (Dec 2021)

Fuzzy Finite Element Analysis for Static Responses of Plane Structures

  • Nguyen Tuan Hung,
  • Le Huynh Xuan,
  • Do Ha Phuong

DOI
https://doi.org/10.2478/cee-2021-0045
Journal volume & issue
Vol. 17, no. 2
pp. 420 – 437

Abstract

Read online

In this paper, a fuzzy finite element algorithm is investigated to determine static responses of plane structures. This algorithm concerns finite element method, fuzzy sets theory, and response surface method. Firstly, the notion of a standardized triangular fuzzy number is developed and utilized to replace original fuzzy numbers in the surrogate models. Then, the error estimations between the training and the test sets are performed to select the suitable response surface model amongst the regression models. Lastly, a good performance combination of complete and non-complete quadratic polynomial regression models is proposed to define the responses of structures. The merits of the proposed algorithm are illustrated via numerical examples.

Keywords