Finite Elements Modeling in Diagnostics of Small Closed Pneumothorax

2015 ◽  
pp. 7-13
Author(s):  
J. Lorkowski ◽  
M. Mrzygłód ◽  
O. Grzegorowska
Keyword(s):  
Finite Elements ◽  
Finite Elements Modeling

Finite elements modeling of olive tree mechanical harvesting using different shakers

Trees ◽  
2013 ◽  
Vol 27 (6) ◽  
pp. 1537-1545 ◽  
Author(s):  
H. Bentaher ◽  
M. Haddar ◽  
T. Fakhfakh ◽  
A. Mâalej
Keyword(s):  
Finite Elements ◽  
Olive Tree ◽  
Finite Elements Modeling

Nonlinear finite elements modeling and experiments of FRP-reinforced concrete piles under shear loads

Structures ◽  
2020 ◽  
Vol 28 ◽  
pp. 106-119 ◽  
Author(s):  
Ahmed H. Ali ◽  
Ahmed Gouda ◽  
Hamdy M. Mohamed ◽  
Mohamed H. Rabie ◽  
Brahim Benmokrane
Keyword(s):  
Reinforced Concrete ◽  
Finite Elements ◽  
Concrete Piles ◽  
Finite Elements Modeling ◽  
Shear Loads ◽  
Nonlinear Finite Elements ◽  
Reinforced Concrete Piles ◽  
Modeling And Experiments

Finite Elements Modeling and Analysis of Cold-Formed Steel Frame Shear Walls

2012 ◽  
Vol 4 (6) ◽  
pp. 719-722
Author(s):  
Mahdi Bitarafan ◽  
Youssef Hussein- Zadeh ◽  
Farzad Pichkah ◽  
Shahin Lale Arefi
Keyword(s):  
Finite Elements ◽  
Shear Walls ◽  
Steel Frame ◽  
Modeling And Analysis ◽  
Finite Elements Modeling ◽  
Cold Formed Steel

TN X SN Fatigue Curves for KS Hook and Chain Using Finite Elements Modelling and Model Test

2007 ◽  
Author(s):  
Jose´ Carlos Lima de Almeida ◽  
Ronaldo Rosa Rossi ◽  
Ricardo Sobral
Keyword(s):  
Finite Elements ◽  
Model Test ◽  
Fatigue Curve ◽  
Functional Condition ◽  
Mooring Line ◽  
Hardness Profile ◽  
Mooring Lines ◽  
Finite Elements Modeling ◽  
Predicting Behavior ◽  
Finite Elements Modelling

The new scenario of oil exploration in ultra deep water moves forward to 3000 m, has been putting for the companies that accept this technological challenger significant, border of the techno-scientific knowledge. Therefore, nowadays in this case of ultra deep waters, where the forces above the mooring lines are increase and the use of the new material in Petrobras Floating Production Units, it is necessary the good numerical analyses and experimental test by the mooring line. It appears the need to look for a solution for the problems according to the changes of the polyester rope in the production platform without the bottom extension change and its foundation (fixed point). According to this challenge it was necessary to develop a remote connection and disconnection device. This device is the KS hook and its optimization has been created using the fracture mechanical conception optics and computers tools (FEM and mooring software). There are two conditions to develop this device: one condition is functional and the other is structural. For the functional condition, it’s necessary to create the facilities for handling and installations. For the structural conditions, it is necessary to use the special wrought steel material, treatment for steel characteristic and right geometry. Finite Elements Modeling analyze used the Ansys software, considered the hardness profile material for Minimum Break Load (MBL). The lifetime design is about 25 years for this case and the fatigue analysis considered the residual stress and plasticity for structural device. Previous simulation is especially important in predicting behavior and in the development of new design products before testing. The model was meshed with 3D first order tetrahedral elements solid45. The mesh was sufficiently fine to ensure minimal loss of accuracy in curved geometry. There isn’t a TN fatigue curve (reference API Fatigue curves) for this KS Hook device geometry, in this case become necessary to use the model test to obtain this curve with the extrapolation of the results. The Finite Elements Modeling analyze used with the Material SN Fatigue curve will be used for this validation. Previous simulation is especially important in predicting behavior and in the development of new design products before testing.

Finite elements modeling of multilayers of Cr/CrN

2008 ◽  
Vol 39 (11) ◽  
pp. 1336-1338 ◽  
Author(s):  
S. Amaya-Roncancio ◽  
E. Restrepo-Parra
Keyword(s):  
Finite Elements ◽  
Finite Elements Modeling

Maximizing Green Anode Slots Height through a Rigorous Methodology and Finite Elements Modeling

2014 ◽  
pp. 1151-1155 ◽  
Author(s):  
Jean-Louis Abeille ◽  
Patrick Sornin ◽  
Yann El Ghaoui ◽  
Philippe Contard ◽  
Alexandre Gagnon ◽  
...  
Keyword(s):  
Finite Elements ◽  
Finite Elements Modeling

Investigation of the Temperature Character of IGBT Failure Mode Based the 3-D Thermal-Electro Coupling FEM

2013 ◽  
Vol 655-657 ◽  
pp. 1576-1580 ◽  
Author(s):  
Pu Zhen He ◽  
Li Bing Zheng ◽  
Hua Chao Fang ◽  
Chun Lei Wang ◽  
Jun Hua
Keyword(s):  
Finite Elements ◽  
Boundary Conditions ◽  
Failure Mode ◽  
Failure Modes ◽  
Structure Design ◽  
Thermal Coupling ◽  
Finite Elements Modeling ◽  
Igbt Module ◽  
Lift Off ◽  
Influence Degree

Al wire bonding lift-off and solder delamination are the main failure modes of IGBT module. When the severity of the failure mode is different, the temperature character of IGBT is also different. This paper presents a methodology based on 3D electro-thermal coupling finite elements modeling intended to analyze the relation between the failure degree and the temperature, and compares the influence degree of two kinds of failure modes to the performance of IGBT module. The results suggest the bonding lift-off has more influence than the solder delamination on the same load and boundary conditions. This method and the corresponding results help to evaluate these failure modes how they influence the performance of IGBT, determine the failure, establish the failure standards and find the optimization of structure design.

scholarly journals Identification of formations of soil and subsoil using finite elements modeling

2014 ◽  
Vol 11 ◽  
pp. 03003
Author(s):  
Latifa Ouadif ◽  
Lahcen Bahi ◽  
Khadija Baba
Keyword(s):  
Finite Elements ◽  
Finite Elements Modeling
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