نتایج جستجو برای: stiffness prediction
تعداد نتایج: 295418 فیلتر نتایج به سال:
Useful lifetime evaluation of chevron rubber spring was very important in design procedure to assure the safety and reliability. It is, therefore, necessary to establish a suitable criterion for the replacement period of chevron rubber spring. In this study, we performed characteristic analysis and useful lifetime prediction of chevron rubber spring. Rubber material coefficient was obtained by ...
BACKGROUND AND PURPOSE Regular endurance exercise has been shown to reduce the age-related increase in arterial stiffness that is thought to contribute to cardiovascular risk. The aim of this study was to evaluate the influence of age and habitual physical activity on carotid artery wall thickness and stiffness in a population of young to middle-age subjects at low cardiovascular risk. METHOD...
Chronic kidney disease, even at moderate stages, is characterized by a high incidence of cardiovascular events. Subclinical damage to large arteries, such as increased arterial stiffness and outward remodeling, is a classical hallmark of patients with chronic kidney disease. Whether large artery stiffness and remodeling influence the occurrence of cardiovascular events and the mortality of pati...
This paper focuses on comprehensive sensitivity analyses of various rigid pavement scenarios. Jointed Plain Concrete Pavement ( JPCP) sections designed for three traffic levels in each of five climate zones are evaluated in the sensitivity analyses. One-at-a-time (OAT) local sensitivity analysis was implemented using a design limit normalized sensitivity index (NSI) to provide both quantitative...
The paper documents the development of a global nonhydrostatic finite-volume module designed to enhance an established spectral-transform based numerical weather prediction (NWP) model. The module adheres to NWP standards, with formulation of the governing equations based on the classical meteorological latitudelongitude spherical framework. In the horizontal, a bespoke unstructured mesh with f...
nanocomposites made of carbon nanotube (cnt) bundles have attracted researchers’ attention due to their unusual properties such as: light weight, flexibility and stiffness. in this paper, the effects of straight and rope-shaped bundles on nanocomposite effective mechanical properties are investigated. first, fea models are created consisting of cnts with different shapes of straight and rope-...
FRP (Fiber Reinforced Polymer) Bar reinforced coral concrete beam is a new type of structural member that has been used more and widely in marine engineering recent years. In order to study predict the flexural performance CFRP beams, rigidity, crack morphology failure mode were studied detail. The results show under condition similar reinforcement ratio, rigidity significantly lower than ordin...
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