نتایج جستجو برای: order shear deformation

تعداد نتایج: 1032557  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز 1379
محمدتقی مومنی, قدرت الله کرمی,

در این پایان نامه یک روش و راه حل بر پایه روش اجزا محدود، برای محاسبه توزیع تنش ها و تغییرمکان ها در تیر لایه ای مرکب ارائه می شود. هدف اصلی از اعمال این روش تحلیل تغییرفرمهای خمشی و برشی در تیر مرکب لایه ای غیرمتقارن است . در این تحلیل ها توابع شکل از نوع خطی و هرمیتی (hermitian) برای تغییر فرمهای برشی و خمشی استفاده شده است . این عمل متفاوت از تحقیقات گذشته بوده که در آنها توابع شکل بکار گرفت...

15 صفحه اول
Journal: Journal of Applied and Computational Mechanics 2018
Atteshamuddin Sayyad, Yuwaraj M. Ghugal,

A trigonometric plate theory is assessed for the static bending analysis of plates resting on Winkler elastic foundation. The theory considers the effects of transverse shear and normal strains. The theory accounts for realistic variation of the transverse shear stress through the thickness and satisfies the traction free conditions at the top and bottom surfaces of the plate without using shea...

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Journal: :journal of tethys 0

dehbid mylonite nappes associated with the tutak gneiss dome as the zagros hinterland involved-basement window in the zagros orogenic belt has significant components of dextral sense of shear along the mylonite nappes and are related to the high proportion of simple shear relative to pure shear deformation. kinematic vorticity analysis (wk) was made in order to determination of relative amounts...

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Journal: :journal of applied and computational mechanics 0
m. nasihatgozar department of mechanical and aerospace engineering, science and research branch, islamic azad university, tehran, iran s. mohammad reza khalili centre of excellence for research in advanced materials and structures, faculty of mechanical engineering, k.n. toosi university of technology, tehran, iran

in this paper, the effect of different boundary conditions on the free vibration analysis response of a sandwich plates is presented using higher order shear deformation theory. the face sheets are orthotropic laminated composite that follow the first order shear deformation theory (fsdt) based on rissners-mindlin (rm) kinematics field. based on energy method and hamilton's principle, the ...

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Journal: :journal of computational and applied research in mechanial engineering - jcarme 0
m. talebitooti department of mechanical engineering, qom university of technology, qom, 1519-37195, iran m. ghasemi department of mechanical engineering, qom university of technology, qom, 1519-37195, iran s. m. hosseini department of mechanical engineering, qom university of technology, qom, 1519-37195, iran

in the present work, study of the vibration of a functionally graded (fg) cylindrical shell made up of stainless steel, zirconia, and nickel is presented. free vibration analysis is presented for fg cylindrical shells with simply supported-simply supported and clamped–clamped boundary condition based on temperature independent material properties. the equations of motion are derived by hamilton...

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Journal: :iranian journal of science and technology transactions of mechanical engineering 2015
m. r. nami m. janghorban

in this article, an analytical solution is developed to study the free vibration analysis offunctionally graded rectangular nanoplates. the governing equations of motion are derived basedon second order shear deformation theory using nonlocal elasticity theory. it is assumed that thematerial properties of nanoplate vary through the thickness according to the power lawdistribution. our numerical...

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Journal: Mechanics of Advanced Composite Structures 2017
Atteshamuddin Sayyad, Bharti Shinde,

Bending analyses of isotropic, functionally graded, laminated composite, and sandwich beams are carried out using a quasi-3D polynomial shear and normal deformation theory. The most important feature of the proposed theory is that it considers the effects of transverse shear and transverse normal deformations. It accounts for parabolic variations in the strain/stress produced by transverse shea...

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Journal: Mechanics of Advanced Composite Structures 2018
Atteshamuddin Sayyad, Yuwaraj Ghugal,

This study investigated bending, buckling, and free vibration responses of hyperbolic shear deformable functionally graded (FG) higher order beams. The material properties of FG beams are varied through thickness according to power law distribution; here, the FG beam was made of aluminium/alumina, and the hyperbolic shear deformation theory was used to evaluate the effect of shear deformation i...

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پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390
یوسف نجاتی یده, محمد رضا قاسمی,

seismic retrofit strategies have been developed in the past few decades following the introduction of new seismic provisions and the availability of advanced materials and methods. it can be observed that new approaches to deal with more lateral forces are more innovative and more energy absorbent. in line with this, there is a growing trend toward the use of steel shear walls as a system with ...

15 صفحه اول
ژورنال: بلورشناسی و کانی شناسی ایران 2014
یساقی, علی, محجل, محمد , نصرآبادی, محسن , نوزعیم, رضا ,

The Kuh-e-Sarhangi shear zone, with N70°E striking, is the northeastern part of the Kashmar-Kerman tectonic zone locating at the NW of the Lut Block.  The Late Precambrian-Early Cambrian four granitic bodies have been intruded in the Kuh-e-Sarhangi shear zone. The Deh Zaman granite consists of two mezocrat and hololeucocratic bodies that are presenting strong ductile deformation and the mylonit...

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