نتایج جستجو برای: finite element analysis fea

تعداد نتایج: 3115832  

2002
C. V. Ramakrishnan S. Ramesh Kumar

PARAM-10000 is latest of the series of High Performance Parallel Super Computers developed by India. It employs a distributed memory and message passing architectures and is built as a cluster of SMP workstations using 4-way SMP workstations from Sun Microsystems. The work discusses about Parallel Finite element Analysis Programs developed with Direct Frontal Solver and Iterative PCG (Pre-condi...

1996
Staffan Flodin Kjell Orsborn Tore Risch

The object-oriented model is often motivated by its support for new emerging application areas such as finite element analysis (FEA), computer-aided design or office automation systems. However, our experience when building such a system (FEA) using an object-relational database management system is that an object-oriented model extended with multi-methods is needed. Our application domain also...

2016
Durmuş Ali BİRCAN Ahmet ÇETİN

In this study, a new medical bone screw was designed and manufactured by Ti6Al4VELI GR23 material and tested in accordance with the ATSM F 543-02 test procedure experimentally. This test is used to measure the axial tensile force required to fail or remove a bone screw from a defined material. Concurrently, 3-D Finite Element Analysis (FEA) models of these medical bone screws were developed to ...

2015
J. Gayathri B. Rajesh Kumar

--MEMS based mass sensors are being designed to identify the small amounts of materials especially for monitoring the food supply. The Fabrication of MEMS includes deposition of material layers, pattering by photolithography and etching to produce the required shapes, consequently leading to time taking and expensive method. In order to reduce the working time of sensor to market a Finite eleme...

2012
Anahita Pakzad John Simonsen Patricia A. Heiden Reza S. Yassar

The ultimate properties of a fibrous composite system depend highly on the transverse mechanical properties of the fibers. Here, we report the size dependency of transverse elastic modulus in cellulose nanocrystals (CNCs). In addition, the mechanical properties of CNCs prepared from wood and cotton resources were investigated. Nanoindentation in an atomic force microscope (AFM) was used in comb...

2015
Xiaocong He Fengshou Gu Andrew Ball

Self-piercing riveting (SPR) is a high-speed mechanical fastening technique which is suitable for point-joining advanced lightweight sheet materials that are dissimilar, coated, and hard to weld. Major advances have been made in recent years in SPR technique. Latest literature relating to finite element analysis (FEA) of SPR joints is reviewed in this paper. The recent development in FEA of SPR...

2017
Michiaki Miura Junichi Nakamura Yusuke Matsuura Yasushi Wako Takane Suzuki Shigeo Hagiwara Sumihisa Orita Kazuhide Inage Yuya Kawarai Masahiko Sugano Kento Nawata Seiji Ohtori

BACKGROUND Finite element analysis (FEA) of the proximal femur has been previously validated with large mesh size, but these were insufficient to simulate the model with small implants in recent studies. This study aimed to validate the proximal femoral computed tomography (CT)-based specimen-specific FEA model with smaller mesh size using fresh frozen cadavers. METHODS Twenty proximal femora...

B. Ahmadi-Nedushan, V. Shobeiri,

In this paper, the bi-directional evolutionary structural optimization (BESO) method is used to find optimal layouts of 3D prestressed concrete beams. Considering the element sensitivity number as the design variable, the mathematical formulation of topology optimization is developed based on the ABAQUS finite element software package. The surface-to-surface contact with a small sliding between...

Journal: :Ultrasonic imaging 1996
W Qi W Cao

Finite element method (FEA) has been used to calculate the thickness resonance frequency and electromechanical coupling coefficient kt for 2-2 piezocomposite transducers. The results are compared with that of the effective medium theory and also verified by experiments. It is shown that the predicted resonance frequencies from the effective medium theory and the unit cell modeling using FEA dev...

Journal: :journal of dentistry, tehran university of medical sciences 0
sara koosha assisstant professor, department of prosthodontics, islamic azad university of medical science, branch of dentistry, tehran, iran. fatemeh sadat mirhashemi

tooth/implant supported fixed prostheses may present biomechanical design problems, as the implant is rigidly anchored within the alveolus, whereas the tooth is attached by the periodontal ligament to the bone allowing movement. many clinicians prefer tooth/implant supported fixed prosthesis designs with rigid connectors. however, there are some doubts about the effect of attachment placement i...

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