scholarly journals Finite-element analysis of thin-walled shells under various parameterization options of their surfaces

2019 ◽  
Vol 675 ◽  
pp. 012053
Author(s):  
Yu V Klochkov ◽  
A P Nikolaev ◽  
T A Sobolevskaya ◽  
A S Andreev
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Element Analysis ◽  
Thin Walled

Finite Element Analysis of Ground Imitating Tank

2005 ◽  
Author(s):  
Jiemin Liu ◽  
Guangtao Ma
Keyword(s):  
Finite Element Method ◽  
Finite Element Analysis ◽  
Finite Element ◽  
Dead Weight ◽  
Element Analysis ◽  
Thin Walled ◽  
The Dead ◽  
Stress And Deformation ◽  
Inertia Forces ◽  
Element Method

A typical ground imitating tank is analyzed regarding it as the thin-walled structure composed of plates (skins) and beams (reinforcement) using finite element method (FEM). Through moving the location of reinforcements, make the skins close with the flanges of the reinforcements in order to imitate actually the connection of the skins and the reinforcements. The thickness of plates, the size and the geometry shape and the location of reinforcements are taken as parameters to be optimized. In calculation, not only consider effects of the oil-weight, the extra-pressure in tank and the dead weight of the tank on the stresses and displacements of the tank, but also analyze the effects of the inertia forces produced due to the rotation of the tank on the stresses and displacements. Displacement, stress and deformation distributions of the ground imitating tank under the three typical flying postures imitated are given.

Residual Stresses and Their Redistribution During Annealing of a Girth-Butt Welded Thin-Walled Pipe

1982 ◽  
Vol 104 (3) ◽  
pp. 245-250 ◽  
Author(s):  
B. L. Josefson
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Stress Reduction ◽  
Rotational Symmetry ◽  
Manganese Steel ◽  
Heating Period ◽  
Element Analysis ◽  
Thin Walled Pipe ◽  
Thin Walled ◽  
Holding Temperature

The redistribution of calculated welding stresses during different post weld heat treatments (PWHT) is numerically investigated for a girth-butt welded thin-walled pipe made of a micro-alloyed carbon manganese steel. A finite element analysis with assumed rotational symmetry is performed. The influence of creep, relaxation and phase transformations is included. The amount of stress reduction is found to be mainly controlled by the holding temperature. Most of this reduction was observed to occur during the end of the heating period where the transient stresses followed the fall of the yield stress with temperature.

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