نتایج جستجو برای: composite pipes
تعداد نتایج: 129021 فیلتر نتایج به سال:
This paper presents an enhanced artificial neural network (ANN) to predict the displacement in composite pipes impacted by a drop weight having different velocities. The impact response of fiber-reinforced polymer depends on several factors including thickness, stacking sequence, and number layers. These were investigated earlier study using sensitivity analysis, it was found that they had most...
This paper conducts a numerical analysis on the external surface cracked steel pipes reinforced with Composite Repair System. A three-dimensional finite element (FE) model is developed to calculate Stress Intensity Factor (SIF) of crack, and crack growth process evaluated by Paris’ law. The effect FRP-to-steel interfacial bond condition SIF evaluation has been considered incorporating cohesive ...
Water distribution networks comprised of underground reinforced concrete pipes deteriorate with time due to environmental conditions, such as chloride-induced corrosion and differential soil movements [1]. If the pipes in these networks are not periodically replaced, they will eventually fail. Strategies for replacement for these pipes depend on 1) the risks associated with failure of a water d...
Recently many plants' pipes and drains became old and many robots to inspect these pipes were developed in the past. Wired robots were put to practical use, but they had a heavy power supply and a signal wire. Therefore, new inspection robots using wireless radio communication system are considered useful for long complex pipes and long distance pipes including straight, vertical and bend line....
Chen, Si. Ph.D., Purdue University, May 2015. Experimental and Modeling Investigation of Cellulose Nanocrystal Polymer Composite Fibers. Major Professor: R. Byron Pipes. Cellulose nanocrystals (CNCs) are a class of newly developed and sustainable nanomaterial derived from cellulose-based materials such as wood. There have been substantial research efforts to utilize these materials as reinforci...
Single-wall fullerene nanotubes were converted from nearly endless, highly tangled ropes into short, open-ended pipes that behave as individual macromolecules. Raw nanotube material was purified in large batches, and the ropes were cut into 100- to 300-nanometer lengths. The resulting pieces formed a stable colloidal suspension in water with the help of surfactants. These suspensions permit a v...
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