Elasto-Plastic Analysis of Prismatic Folded Plates by the Finite Element Method

2012 ◽  
Author(s):  
Pattabhi Sitaram ◽  
Bipin Pai ◽  
Rachel Mok
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Plastic Behavior ◽  
The Finite Element Method ◽  
Plate Structures ◽  
Elastic Range ◽  
Plastic Analysis ◽  
Plates And Shells ◽  
Plastic Zones ◽  
Element Method

Folded plate structures are used for roofing large column-free areas for auditoriums, supermarkets, gymnasiums, hangars for aircraft, and other similar applications. The loads on these structures could cause stresses to go beyond the elastic range. Therefore, a thorough understanding of their elasto-plastic behavior is of utmost importance in designing these structures. An attempt is made to study the elasto-plastic behavior of prismatic metal folded plates by the finite element method using the commercial software, ANSYS. The method is first validated by analyzing typical plates and shells, and comparing them with available solutions in the literature. The elasto-plastic behavior of some prismatic folded plates is then studied, and their force-deflection responses and evolution of plastic zones are evaluated.

scholarly journals Modelling Plates and Shells by Means of the Rigid Finite Element Method

2015 ◽  
Vol 62 (1) ◽  
pp. 101-114 ◽  
Author(s):  
Iwona Adamiec-Wójcik ◽  
Andrzej Nowak ◽  
Stanisław Wojciech
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Free Vibrations ◽  
The Finite Element Method ◽  
Hybrid Finite Element Method ◽  
Hybrid Finite Element ◽  
Rigid Finite Element Method ◽  
Plates And Shells ◽  
Single Set ◽  
Element Method

Abstract The rigid finite element method (RFEM) has been used mainly for modelling systems with beam-like links. This paper deals with modelling of a single set of electrodes consisting of an upper beam with electrodes, which are shells with complicated shapes, and an anvil beam. Discretisation of the whole system, both the beams and the electrodes, is carried out by means of the rigid finite element method. The results of calculations concerned with free vibrations of the plates are compared with those obtained from a commercial package of the finite element method (FEM), while forced vibrations of the set of electrodes are compared with those obtained by means of the hybrid finite element method (HFEM) and experimental measurements obtained on a special test stand.

A New Method to Quickly Optimize the Thickness of Multi-Holes Plate

2014 ◽  
Vol 915-916 ◽  
pp. 205-208
Author(s):  
Sheng Bin Wu ◽  
Xiao Bao Liu
Keyword(s):  
Mathematical Model ◽  
Finite Element Method ◽  
Finite Element ◽  
Design Method ◽  
New Method ◽  
The Finite Element Method ◽  
Design Error ◽  
Theory Of Plates ◽  
Plates And Shells ◽  
Element Method

The theory of plates and shells is not adapted to design thickness for the multi-holes plates in engineering. A new method to quickly optimize the thickness based on the finite element method theory was put forward. The method combined the theory of plate with the finite element method to establish a mathematical model and analyzed the influences of load, constraint and complexity on design error. The practices demonstrated that the proposed design method is effective and feasible.

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