نتایج جستجو برای: Dynamic Loading
تعداد نتایج: 475781 فیلتر نتایج به سال:
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....
background and objectives: scapular stabilization and neuromuscular control provide an important parameter to characterize shoulder function during dynamic activities. many studies have confirmed the effect of the loading on scapular position and scapulohumeral rhythm. therefore, the evaluation of stabilizer muscles involvement in scapular asymmetry may assist in the development of clinical exa...
in investigation of dynamic specifications of castellated beams, it is necessary to be studied the excitation intensity of dynamic mode shapes for different loading conditions. it is evident that for a specific loading, not all modes of a structure are excited and the structural response depends on the applied loading specifications. in this paper using the finite element method (based on ansys...
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این پروژه پاسخی دینامیکی ورق های نازک مستطیلی که حداقل دو طرف آن دارای تکیه گاه ساده بوده و تحت بارگذاری مکانیکی مستقر روی فونداسیون الاستیک از نوع پسترنک باشد را بررسی می کند بارهای مکانیکی شامل بارهای ضربه ای عمود بر سطح ورق و بارهای درون صفحه ای وارد بر لبه های ورق به صورت تنش تک محوری و دو محوری می باشد. آنالیز براساس روش حل دقیق می باشد در ابتدا ارتعاشات آزاد ورق بصورت تحلیلی بررسی شده و ف...
Modeling buildings response to blast and subsequent progressive collapse interested more and more researchers during the past two decades. Due to the threat from extreme loading, efforts have been made to develop methods of structural analysis and design. In this paper, progressive collapse capacity of steel moment frames was first investigated using alternate load path method, then a nonlinear...
investigating the parameters influencing the behavior of buried pipelines under dynamic loading is of great importance. in this study the soil structure interaction of the pipelines with the surrounding soil was addressed using shaking table tests. wave propagation along the soil layers was also included in the study. the semi infinite nature of the field was simulated using a laminar shear box...
In this paper, the dynamic behavior of square plates with various thicknesses and stiffening configurations subjected to underwater explosion (UNDEX) are evaluated through a relatively novel approach which is called Incremental Explosive Analysis (IEA). The IEA estimates the different limit-states and deterministic assessment of plats’ behavior, considering uncertainty of loading conditions and...
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