نتایج جستجو برای: static behavior

تعداد نتایج: 717901  

In the present article a numerical procedure is developed for dynamic analysis of single and double autofrettage of thick–walled FG cylinders under transient loading. The governing differential equations are discretized and presented in explicit Lagrangian formalism. The explicit transient solution of discrete equations are obtained on the meshed region and results for stress and strain distrib...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تربیت مدرس - دانشکده فنی مهندسی 1385

خریداران عموماً در مورد کالاها براساس ویژگیهای بیرونی (extrinsic cues) آنها قضاوت می کنند ، به ویژه هنگامیکه سنجش ویژگیهای ذاتی کالا مشکل باشد. به همین علت است که کشـور سـازنده کـالـا، (country of origin or coo) ، یکی از این ویژگیهای بیرونی محصول ، عموماً برای ارزیابی کالاهای خارجی مورد استفاده قرار میگیرد. اثرات کشور سازنده کالا در حوزه رفتار خرید مصرف کننده (consumer buying behavior)بطور گسترده...

One of the methods for the improvement of soil against the tensile stresses is using the artificial supplements in soil such as metal belts or nets, polymer materials and natural fibers. Technically this method is called the reinforced of soil.  When a pavement is located on soft soil, great deformations can occur as a result of the crossing of traffic load in superstructure layers of the body....

Hadi Niromand Jazi Hassan Aghabarati, Mohammad Reza Farhadi

The system of steel shear wall is an initiative resistance system against the lateral load such as an earthquake and the wind that has been researched in the last three decades. Currently, this system is noticed more than other systems because of adequate stiffness, ductility, and more energy absorption. The system of steel shear wall with corrugated sheets has been offered as an innovative sys...

A. Khalkhali, F. Malmir M. H. Shojaeefard S.H. Khakshournia

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...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده فنی 1393

ناکاملی هندسی در ستون ها از مواردی می باشد که وجود آن در اعضای سازه ای را نمی توان نادیده گرفت، در هر عضو سازه ای ناکاملی هندسی هر چند بسیار کوچک وجود خواهد داشت از این رو بررسی تاثیرات این ناکاملی ها و همچنین پیدا کردن مقدار مجاز برای آنها در طراحی سازه های فولادی دارای اهمیت خاصی می باشد. هدف این پژوهش بررسی رفتار قاب های فولادی با ناکاملی در مختصات گرهی به میزان 3، 6 و 9 میلی متر بوده که برا...

Journal: :journal of chemical and petroleum engineering 2011
amir abbas askari turaj behrouz

rock selection in modeling and simulation studies is usually based on two techniques; routinely defined rock types and those defined by special core analysis (scal). the challenge in utilizing these two techniques is that they are frequently assumed to be the same, but in practice, static rock-types (routinely defined) are not always representative of dynamic rock-types (scal defined) in the re...

2006
Ulf Ahlstrom

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