نتایج جستجو برای: slip surface

تعداد نتایج: 650376  

F. Heydari, M. Hajiazizi, M. Shahlaei,

In this paper the factor of safety (FS) and critical line-segments slip surface obtained by the Alternating Variable Local Gradient (AVLG) optimization method was presented as a new topic in 2D. Results revealed that the percentage of reduction in the FS obtained by switching from a circular shape to line segments was higher with the AVLG method than other methods. The 2D-AVLG optimization meth...

Journal: :international journal of optimaization in civil engineering 0
m. hajiazizi f. heydari m. shahlaei

in this paper the factor of safety (fs) and critical line-segments slip surface obtained by the alternating variable local gradient (avlg) optimization method was presented as a new topic in 2d. results revealed that the percentage of reduction in the fs obtained by switching from a circular shape to line segments was higher with the avlg method than other methods. the 2d-avlg optimization meth...

Journal: :international journal of advanced design and manufacturing technology 0
mohamadmehdi hemmasian manouchehr rad

this paper studied the mathematical method of flow with regard to two-phase boundary layer that created over the iced surface. based on experimental results, skin drag over the iced surface compared with this force that compute with slip condition. based on this results, for iced surface blasius equation solving at non-slip condition, can replace with solving the blasius equation with slip cond...

Journal: :international journal of civil engineering 0
m. hajiazizi kermanshah-taghe bostan-razi university a. r. mazaheri kermanshah-taghe bostan-razi university

stabilization of earth slopes with various proposed methods is one of the important concerns of geotechnical engineering. in this practice, despite numerous developments, design conservativeness and high costs of stabilization are the issues yet to be addressed. this paper not only deals with pile location optimization but also studies the effects of the pile length by using line segments slip ...

Journal: :IEICE Transactions 2009
Milenko Braunovic

In recent years, there has been considerable interest in investigating the effects of fretting, a common problem of significant practical importance that can affect a wide range of electrical equipment incurring costly component replacement and expensive equipment downtime. Fretting is defined as accelerated surface damage occurring at the interface of contacting materials subjected to small os...

Journal: :international journal of iron & steel society of iran 2014
g. dini s. vercammen a. maleki

microstructural evolutions of twinning induced plasticity (twip) steel during tensile straining wereinvestigated by in situ sem observations. the results indicated that slip lines and mechanical twins aswell as surface relief were increased with increasing strain, resulting in a stepped surface. additionally,these deformation mechanisms could change the shape of each grain via shear and rotatio...

جعفری, سعیده, جهانگیری, مهدی, دوستی, صابره, رجبی, فاطمه, قربانی, محمد,

Introduction: Kitchen workers are in danger of slip accident because of slippery surfaces created by contaminants like grease, water and food material. The aim of this study was to investigate the prevalence and slip risk assessment in cooking sites of Shiraz. Material and Method: This cross-sectional study was conducted on 322 cases from commercial kitchens in traditional and fast food rest...

Journal: :نشریه دانشکده فنی 0
کارن ابری نیا رحیم تحریری ماسوله

many metal forming problems have been solved using the slip line field method but all of them have either been two-dimensional (plane strain or plain stress) or axisymmetric problems. in this paper a procedure has been proposed by which the slip line field solution to three dimensional problems of metal forming becomes possible. for this purpose the extrusion of shaped sections has been taken a...

2017
Benjamin A Brooks Sarah E Minson Craig L Glennie Johanna M Nevitt Tim Dawson Ron Rubin Todd L Ericksen David Lockner Kenneth Hudnut Victoria Langenheim Andrew Lutz Maxime Mareschal Jessica Murray David Schwartz Dana Zaccone

Earthquake-related fault slip in the upper hundreds of meters of Earth's surface has remained largely unstudied because of challenges measuring deformation in the near field of a fault rupture. We analyze centimeter-scale accuracy mobile laser scanning (MLS) data of deformed vine rows within ±300 m of the principal surface expression of the M (magnitude) 6.0 2014 South Napa earthquake. Rather t...

Journal: :فیزیک زمین و فضا 0
بیژن شورچه دانشجوی دکترای ژئودزی، گروه مهندسی نقشه برداری، پردیس دانشکده های فنی، دانشگاه تهران، ایران مهدی معتق استادیار، گروه مهندسی نقشه برداری، قطب علمی مهندسی نقشه برداری و مقابله با سوانح طبیعی، پردیس دانشکده های فنی، دانشگاه تهران، ایران محمدعلی شریفی استادیار، گروه مهندسی نقشه برداری، قطب علمی مهندسی نقشه برداری و مقابله با سوانح طبیعی، پردیس دانشکده های فنی، دانشگاه تهران، ایران

many earthquakes occur in iran every year and some of these earthquakes cause loss of life and property. consequently earthquake is one of challenging topics not only in iran but also in other active tectonic regions in the world. investigating the mechanism of earthquake as a natural disaster is the first and important step. to study earthquakes, different information such as geometry and beha...

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