Estimation of various parameters of fractured femur with different load conditions using Finite element analysis

Author(s):  
M. Madheswaran ◽  
R. Vijayakumar
2020 ◽  
Vol 8 (11) ◽  
pp. 926
Author(s):  
Se-Yun Hwang ◽  
Min-Seok Kim ◽  
Jang-Hyun Lee

In this paper, the procedure for the strength evaluation of the piping system installed on liquefied natural gas (LNG) carriers is discussed. A procedure that accounts for the ship’s wave load and hull motion acceleration (as well as the deformation due to the thermal expansion and contraction experienced by the hull during seafaring operations) is presented. The load due to the temperature and self-weight of the piping installed on the deck is also considered. Various operating and load conditions of the LNG piping system are analyzed. Stress analysis is performed by combining various conditions of sustained, occasional, and expansion loads. Stress is assessed using finite element analysis based on beam elements that represent the behavior of the piping. The attributes of the piping system components (such as valves, expansion joints, and supports) are represented in the finite element model while CAESAR-II, a commercial software is used for finite element analysis. Component modeling, load assignment, and load combinations are presented to evaluate pipe stresses under various load conditions. An evaluation model is selected for the piping arrangement of LNG and the evaluated stress is compared with the allowable stress defined by the American Society of Mechanical Engineers (ASME).


2013 ◽  
Vol 446-447 ◽  
pp. 503-508
Author(s):  
Xiao Feng Ding ◽  
Hui Chang

This paper presents an investigation into the losses and thermal characteristics of induction motors operated from pulse width-modulated (PWM) voltage supply in comparison to that operated from sinusoidal voltage supply. It was concluded that due to the abundant harmonics in the PWM waveforms, significant losses are induced in the motor by the inverter supply. The temperature ascends correspondingly. Experiments were conducted with no load and with load conditions. The losses and thermal characteristics were calculated using finite element analysis (FEA) and validated by the experiments.


2006 ◽  
Vol 42 (10) ◽  
pp. 3476-3478 ◽  
Author(s):  
A. Bellini ◽  
O. Bottauscio ◽  
M. Chiampi ◽  
C. Tassoni ◽  
M. Zucca

2020 ◽  
Vol 33 ◽  
pp. 3540-3548
Author(s):  
S. Seralathan ◽  
Hemanth Prasanna ◽  
J. Arun ◽  
B. Guhanesh ◽  
D. Prasanth ◽  
...  

2014 ◽  
Vol 578-579 ◽  
pp. 173-176
Author(s):  
Wei Ling Wang

Finite element analysis of LNG prestressed storage tank which was under various load conditions was carried out. The calculation results show that the low temperature load and prestress force are the control load which affect the storage tank stress. Further,some recommendations on the configuration of the prestressed reinforcement have been made so as to provide the basis for the design optimization of prestressed LNG tanks.


2012 ◽  
Vol 134 (03) ◽  
pp. 44-47
Author(s):  
Jean Thilmany

This article explores the application of finite element analysis (FEA) in studying the evolution of animals, including dinosaurs. Scientists have applied the method to determine how dinosaurs originally looked and functioned, and how they and other animals changed and evolved through the years. FEA is a useful tool to reconstruct the mechanical behavior of the muscle and skeletal system in zoological and paleontological studies because it is non-invasive and reconstructs stress at multiple sites and depths throughout the skeleton. It can be used to study extinct animals by way of their fossilized remains and can deal with complex geometries and load conditions. FEA is now routinely used to interpret skeletal forms for function in both medical and biological applications. The scientists believe that FEA will hopefully allow to see the effect of eating hard foods, such as the belemnites with their bullet-shaped guards. FEA allows a far more intricate, accurate, and precise picture of the bone to be used in studies.


2014 ◽  
Vol 1028 ◽  
pp. 151-154
Author(s):  
Hao Zhang ◽  
Suo Huai Zhang ◽  
Zheng Song Guo ◽  
Hai Ming Wang

This paper compares the performance of the fabricated planet carrier and the integral planet carrier. By using the finite element analysis, the paper will found which planet carrier has the better performance in the same structure and load conditions. And draw the conclusions.


2001 ◽  
Vol 123 (07) ◽  
pp. 60-62
Author(s):  
Jean Thilmany

This article describes application of finite element analysis (FEA) in snap tool, developed by Snap-on Inc. in Kenosha, Wisconsin. FEA has been finding its way down the engineering chain with the help of easy-to-use software. FEA is the use of a complex system of points—called nodes—that form a grid, or mesh, across a model. The mesh contains the material and structural properties that define how the part will react to certain load conditions. Snap-on has discovered that if engineers analyze their products as they design them, they understand their products better and face fewer project delays. Engineers who use FEA have found that analyzing as they design parts saves development time. The Snap-on power tools group's move to integrated design and analysis should be complete by year's end. Mechanical failure often results from a variety of forces, including motion, stress, thermal and fluid-flow effects, and vibration. Multiphysics applications give engineers the ability to run all these analyses at the same time, to determine how the tower would withstand real-world conditions that occur simultaneously.


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