نتایج جستجو برای: stress finite element method

تعداد نتایج: 2312869  

Journal: :computational methods in civil engineering 2012
s.m. pourhoseini nejad gh.r. ghodrati amiri a. asadi e. afsharid z. tabrizian

this paper uses a psopc model based non-destructive damage identification procedure using frequency and modal data. the objective function formulation for the minimization problem is based on the frequency changes. the method is demonstrated by using a cantilever beam, four-bay plane truss and two-bay two-story plane frame with different scenarios. in this study, the modal data are provided nume...

Journal: :journal of modern processes in manufacturing and production 2013
meysam darvishi mohammad sedighi mehrdad khandaie

nowadays, tube bonding in vehicles structure is noticeably considered by many researches. in this paper, local tube compression process by a rubber ring has been studied. firstly, simulation of the process was performed by fem. then, experimental test has been carried out to validate the numerical results. numerical and experimental results were compared showing a good agreement. in the second ...

Journal: :international journal of nano dimension 0
m. h. shojaeefard school of automotive engineering, iran university of science and technology, tehran, iran a. khalkhali school of automotive engineering, iran university of science and technology, tehran, iran s.h. khakshournia school of automotive engineering, iran university of science and technology, tehran, iran f. malmir school of automotive engineering, iran university of science and technology, tehran, iran

this paper investigates the effect of different methods of carbon nanotubes distribution in a thin matrix on static and dynamic behavior of the nanocomposite. five different symmetric patterns of distribution are considered, including four parabolic patterns and a linear one. for each pattern, the effective mechanical properties of the resultant nanocomposite are calculated using the rule of mi...

Journal: :journal of modern processes in manufacturing and production 0
javad shahbazi karami faculty of mechanical engineering, shahid rajaee teacher training university, tehran, iran hamed bakhtiarizade department of mechanical engineering, iran university of science &technology, tehran, iran mohsen shahmoradi department of mechanical engineering, maleke-ashtar university of technology, isfahan, iran

development of new technologies and combined with creativity and innovation, plays the fundamental role in developing of any community′s value. thus, in this research the design and production of hydroforming device was introduced. one of the best and most efficient technologies in the world of metal forming is wind turbine blade producing with hydroforming method which seems as an innovative m...

Journal: :journal of modern processes in manufacturing and production 0
ali talebi anaraki department of mechanical engineering, najafabad branch, islamic azad university, najafabad, iran mohsen loh-mousavi department of mechanical engineering, najafabad branch, islamic azad university, najafabad, iran

light-weight and high strength alloys such as al-mg alloys are used in order to reduce the weight of industrial components. however these materials should be formed at elevated temperatures due to their poor formability at room temperature. hot metal gas forming is one of the high-tech forming processes that is used to solve this problem. recent investigation on tube hydroforming showed positiv...

Journal: :journal of theoretical and applied vibration and acoustics 0
mohammad hossein malakooti school of mechanical engineering, iran university of science and technology, tehran, iran hamid ahmadian school of mechanical engineering, iran university of science and technology, tehran, iran hassan jalali department of mechanical engineering, arak university of technology, arak, iran

the use of structural adhesives in automotive structures has been increased recently for their role in noise, vibration and harshness (nvh). therefore, the dynamic behavior of structures containing bonded joints has become an area with numerous investigations over the past decades. development of accurate formulations capable of representing adhesively bonded joint dynamics is a step forward in...

Journal: :international journal of advanced design and manufacturing technology 0
ramin meshabadi sayad haji mohamadi amir kazemi

the finite element method (fem) is one of advanced methods in modeling of solid mechanics used in the design and analyzing of prosthesis in the human body. one of the important factors in designing a femur (the linkage between basin and knee) which is under complicated stresses is to minimize the amount of the stress in the components of the prosthesis due to the body weight. in this research t...

Journal: :international journal of iron & steel society of iran 2011
j. rasti a. najafizadeh m. meratian

in the hot compression test friction has a detrimental influence on the flow stress through the process and therefore, correcting the deformation curve for real behavior is very important for both researchers and engineers. in this study, a series of compression tests were simulated using abaqus software. in this study, it has been employed the taguchi method to design experiments by the factor...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تهران 1386

چکیده ندارد.

Journal: :TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series C 1980

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