دوره 7، شماره 2 - ( 12-1395 )                   جلد 7 شماره 2 صفحات 318-291 | برگشت به فهرست نسخه ها

XML English Abstract Print


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

Rezaiee-Pajand M, Naserian R. NONLINEAR FRAME ANALYSIS BY MINIMIZATION TECHNIQUE. International Journal of Optimization in Civil Engineering 2017; 7 (2) :291-318
URL: http://ijoce.iust.ac.ir/article-1-299-fa.html
NONLINEAR FRAME ANALYSIS BY MINIMIZATION TECHNIQUE. عنوان نشریه. 1395; 7 (2) :291-318

URL: http://ijoce.iust.ac.ir/article-1-299-fa.html


چکیده:   (18007 مشاهده)

By minimizing the total potential energy function and deploying the virtual work principle, a higher-order stiffness matrix is achieved. This new tangent stiffness matrix is used to solve the frame with geometric nonlinear behavior. Since authors’ formulation takes into account the higher-order terms of the strain vector, the convergence speed of the solution process will increase. In fact, both linear and nonlinear parts of the frame axial strains are included in the presented formulation. These higher-order terms affect the resulting unbalanced force and also frame tangent stiffness. Moreover, the finite element method, updated Lagrangian description, and arc length scheme are employed in this study. To check the efficiency of the proposed strategy, several numerical examples are solved. The findings indicate that the authors’ technique can accurately trace the structural equilibrium paths having the limit points.

متن کامل [PDF 1021 kb]   (5529 دریافت)    
نوع مطالعه: پژوهشي | موضوع مقاله: Optimal design
دریافت: 1395/9/7 | پذیرش: 1395/9/7 | انتشار: 1395/9/7

ارسال نظر درباره این مقاله : نام کاربری یا پست الکترونیک شما:
CAPTCHA

بازنشر اطلاعات
Creative Commons License این مقاله تحت شرایط Creative Commons Attribution-NonCommercial 4.0 International License قابل بازنشر است.

کلیه حقوق این وب سایت متعلق به دانشگاه علم و صنعت ایران می باشد.

طراحی و برنامه نویسی : یکتاوب افزار شرق

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

Designed & Developed by : Yektaweb