scholarly journals Analysis on Finite Element Grid Size and Discrete Error for Super-high Arch Dams

2021 ◽  
Vol 825 (1) ◽  
pp. 012033
Author(s):  
Yizhi Yan ◽  
Wanju Zhang ◽  
Zhimin Shen ◽  
Zimeng Li ◽  
Yunpeng Wei ◽  
...  
Keyword(s):  
Finite Element ◽  
Grid Size ◽  
Arch Dams ◽  
Finite Element Grid ◽  
High Arch Dams

Thermal Stress Compensation of MgO Concrete in Construction of High Arch Dams in Cold Areas

2014 ◽  
Vol 852 ◽  
pp. 427-431 ◽  
Author(s):  
Xiang Yang Jing ◽  
Xing Hong Liu ◽  
Xu Zhang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Thermal Stress ◽  
Arch Dam ◽  
Mass Concrete ◽  
The Finite Element Method ◽  
Arch Dams ◽  
Stress Compensation ◽  
Mgo Concrete ◽  
High Arch Dams

When mixed with the admixture MgO, the volume contraction deformation of mass concrete could be compensated, which is an effective way to solve the temperature cracking problems in construction of concrete projects. Taking an arch dam in China as an example, the thermal stress compensation characteristics of MgO concrete in cold areas are studied using the finite element method. Results indicate that the stress compensation of MgO concrete is significant inside the dam, and with a better effect along with a larger mixing amount of MgO in a certain range. But on the surface of the dam, the stress compensation of MgO concrete is not significant.

scholarly journals The stress-strain state of gondola mounting bracket of a transport aircraft

2020 ◽  
pp. 117-123
Author(s):  
Sergii Trubachev ◽  
Olga Alexeychuk
Keyword(s):  
Finite Element ◽  
Power Plant ◽  
Strain State ◽  
3D Model ◽  
Stress Strain ◽  
Transport Aircraft ◽  
Finite Element Grid ◽  
Stress Strain State ◽  
Heavy Loads

The bracket is used to attach the gondola, which is an important part of the aircraft power plant. The gondola is constantly subjected to heavy loads when starting the engine, in flight, takeoff and landing. Therefore, the strength of the brackets of its attachment is very important. The geometric 3D model was built in SOLIDWORKS and imported for further calculations in ANSYS. A grid of tetraidal elements was created by the program. Thanks to the obtained FE (finite element) grid, we make the calculation of the stress strain state. Comments are provided on changes in the geometric and mass parameters of the bracket, based on the results of calculations.

scholarly journals Using a finite element grid on corner points in flow models

2003 ◽  
Vol 44 ◽  
pp. 531
Author(s):  
C. J. Matthews ◽  
R. D. Braddock ◽  
G. C. Sander
Keyword(s):  
Finite Element ◽  
Flow Models ◽  
Finite Element Grid ◽  
Corner Points
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