نتایج جستجو برای: elastic

تعداد نتایج: 70682  

دشت بیاض, محمدرضا, محمودی میمند, مریم,

In this research, stiffness of polymer-clay nanocomposites was simulated by Mori-Tanaka and two and three dimensional finite element models. Nanoclays were dispersed into polymer matrix in two ways, namely parallel and random orientations toward loading direction. Effects of microstructural parameters including volume fraction of nanoclays, elastic modulus of nanoclays and interphase, thickness...

Journal: :journal of nanostructures 2013
a. ghorbanpour-arani a. shiravand a. h. ghorbanpour-arani s. amir e. haghparast

in this study, forced-vibration analysis of a coupled system of single layered graphene sheets (slgss) subjected to the moving nano-particle is carried out based on nonlocal elasticity theory of orthotropic plate. two slgss are coupled with elastic medium which is simulated by pasternak and visco-pasternak models. using hamilton’s principle, governing differential equations of motion are derive...

Journal: :مکانیک سیالات و آیرودینامیک 0
علی عباس¬نژاد محمود نوروزی زکیه طالبی

the purpose of this research is to numerically investigate the interaction of pulsatile flow of blood with an axisymmetric artery in various percentages of stenosis. the carreau non-newtonian model and the generalized maxwell rheological model were used to model the blood fluid and the viscoelastic wall of arterial, respectively. the innovation of the present research is modeling of viscoelasti...

Journal: :journal of nanostructures 2012
a. ghorbanpour arani a. haghshenas s. amir m. azami z. khoddami maraghi

electro-thermo-elastic stress analysis of piezoelectric polymeric thick-walled cylinder reinforced by boronnitride nanotubes (bnnts) subjected to electro-thermo-mechanical fields is presented in this article. the electro-thermo-elastic properties of piezoelectric fiber reinforced composite (pefrc) was studied by a modified xy micromechanical model capable of exhibiting full coupling relation be...

ژورنال: مهندسی دریا 2010
بصیرت تبریزی, حسن, حسنقلی زاده, محسن, عصاری, محمدرضا,

The estimation of wave loads on very large flouting structure is usually done by an empirical or a computational approach. The computational approach usually assumes two types. Some use the Laplace equation or potential flow and some take the Navier-Stokes equation or viscous flow analysis. In this study, the interaction between wave and elastic plate is investigated by using viscous flow assum...

Mohammad Heydari Vini, Pedram Farhadipour Sayed Mohammad Reza Loghmanian

Temper rolling or skin pass rolling is one of cold rolling processes composed of a horizontal pass cold rolling mill stand. In this process, the thick strip is subjected to very light reduction (0.5–4%) in thickness in the presence of high friction amplitudes. One of the basic parameters of strip rolling processes is temper rolling force. A new rolling force model has been proposed for temper r...

A. Ghorbanpour-Arani, A. H. Ghorbanpour-Arani A. Shiravand E. Haghparast S. Amir

In this study, forced-vibration analysis of a coupled system of single layered graphene sheets (SLGSs) subjected to the moving nano-particle is carried out based on nonlocal elasticity theory of orthotropic plate. Two SLGSs are coupled with elastic medium which is simulated by Pasternak and Visco-Pasternak models. Using Hamilton’s principle, governing differential equations of motion are derive...

Journal: :international journal of advanced design and manufacturing technology 0
shahriyar kournavand behnam motakef imani

the micro milling operation is one of the manufacturing processes, which can produce 3d parts in the range of less than a millimetre. miniaturization of components results in increasing the ratio of surface area to volume of components, which in turn increases the role of surface on the component performance. therefore, anticipating the relationship between micro milling parameters and surface ...

Journal: :journal of applied and computational mechanics 0
mohammd sharif zarei faculty of engineering, ayatollah boroujerdi university, boroujerd, iran mohammad hadi hajmohammad department of mechanical engineering, imam hossein university, tehran, iran ali nouri department of mechanical engineering, imam hossein university, tehran, iran

in this study, dynamic buckling of embedded laminated nanocomposite plates is investigated. the plates are reinforced with single-walled carbon nanotubes (swcnts) where to obtain the equivalent material properties of them, mori-tanaka model is applied. based on the sinusoidal shear deformation theory (ssdt), the motion equations are derived using energy method and hamilton's principal. the...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید