Volume 7, Issue 1 (1-2017)                   2017, 7(1): 109-127 | Back to browse issues page

XML Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Rezaiee-Pajand M, Afsharimoghadam H. OPTIMIZATION FORMULATION FOR NONLINEAR STRUCTURAL ANALYSIS. International Journal of Optimization in Civil Engineering 2017; 7 (1) :109-127
URL: http://ijoce.iust.ac.ir/article-1-287-en.html
Abstract:   (18171 Views)

In this paper, the effect of angle between predictor and corrector surfaces on the structural analysis is investigated. Two objective functions are formulated based on this angle and also the load factor. Optimizing these functions, and using the structural equilibrium path’s geometry, lead to two new constraints for the nonlinear solver. Besides, one more formula is achieved, which was previously found by other researchers, via a different mathematical process. Several benchmark structures, which have geometric nonlinear behavior, are analyzed with the proposed methods. The finite element method is utilized to analyze these problems. The abilities of suggested schemes are evaluated in tracing the complex equilibrium paths. Moreover, comparison study for the required number of increments and iterations is performed. Results reflect the robustness of the authors’ formulations.

Full-Text [PDF 918 kb]   (5661 Downloads)    
Type of Study: Research | Subject: Optimal design
Received: 2016/08/5 | Accepted: 2016/08/5 | Published: 2016/08/5

Add your comments about this article : Your username or Email:
CAPTCHA

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2024 CC BY-NC 4.0 | Iran University of Science & Technology

Designed & Developed by : Yektaweb