Title of article :
UPPER and LOWER BOUNDS FOR THE COLLAPSE LOAD FACTOR OF RECTANGULAR GRIDS USING FEM
Author/Authors :
Kaveh, A Department of Civil Engineering - Iran University of Science and Technology - Narmak, Tehran , Seddighian, M.R Department of Civil Engineering - Iran University of Science and Technology - Narmak, Tehran , Ghanadpour, E Department of Civil Engineering - Iran University of Science and Technology - Narmak, Tehran
Abstract :
Despite widespread application of grillage structures in many engineering fields such as
civil, architecture, mechanics, their analysis and design make them more complex than other
type of skeletal structures. This intricacy becomes more laborious when the corresponding
analysis and design are based on plastic concepts.
In this paper, Finite Element Method is utilized to find the lower and the upper bounds
solutions of rectangular planner grids and this method is compared with analogues Finite
Difference Method to indicate the efficiency of proposed approach.
Keywords :
grid structures , plastic design , finite element method , finite difference method
Journal title :
Astroparticle Physics
