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Showing 1 to 14 of 14 for “"Burst Pressure"”.
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Burst Pressure Prediction of Filament Wound Composite Pressure Vessels Using Acoustic Emission
… from flaw growth activity can be used to predict burst pressures in filament wound composite pressure vessels. Acoustic emission data were taken during hydroproof testing for a set of eleven ASTM standard 5.75 inch diameter fiberglass/epoxy bottles. Amplitude distributions were created using only …
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Neural Network Burst Pressure Prediction in Composite Overwrapped Pressure Vessels from Acoustic Emission Data
… have been obtained by switching from all metal pressure vessels to composite overwrapped pressure vessels (COPVs). Due to the nature of composites, current nondestructive analysis procedures for COPVs are not adequate for assessing structural integrity. As such, new methods must be developed. …
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Neural Network Burst Pressure Prediction in Composite Overwrapped Pressure Vessels Using Mathematically Modeled Acoustic Emission Data
<p>The purpose of this research was to predict burst pressures in composite overwrapped pressure vessels (COPV) using mathematically modeled acoustic emission (AE) data. The AE data were collected during hydrostatic burst (hydroburst) testing often 15-inch (380 mm) diameter COP Vs. The data …
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Determining ideal staple size for small intestinal surgery in cats
… cat jejunum, were evaluated via intestinal burst pressure testing for maximum intraluminal pressure prior to leaking, and via infusion of an intravascular dye at normal arterial pressures to determine percentage of vascular patency past the staple lines. Vascular patency was compared not …
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Design And Manufacture Of An Oil Cooler By Additive Manufacturing
… cooler must provide a heat duty of 15 kW with pressure drops less than 343 Pa and 170 kPa on the air and oil side respectively. The dimensions of the designed heat exchanger are limited to those of the existing heat exchanger (430 mm x 530 mm x 50 mm) for interchangeability. The heat exchanger …
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Reliability analyses of the collapse and burst of elastic/plastic tubes
… solutions to the reliability problems of burst and collapse of tubes with random geometric imperfections under internal or external pressure. Steel tubes have broad applications in petroleum offshore engineering and must be designed to a safe but yet economical standard. The variation of …
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Electrospun Tissue Engineered Vascular Grafts
… alignment) and mechanical (hoop stress, strain, burst pressure, compliance) properties. After in vitro elution and degradation studies, grafts (DP30 and DP30+3%HepTBA) were evaluated in an in vivo pilot study using a rat infrarenal aortic interposition model (28 days). Relative humidity did not …
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Electrospun Tissue Engineered Vascular Grafts
… alignment) and mechanical (hoop stress, strain, burst pressure, compliance) properties. After in vitro elution and degradation studies, grafts (DP30 and DP30+3%HepTBA) were evaluated in an in vivo pilot study using a rat infrarenal aortic interposition model (28 days). Relative humidity did not …
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Fully Integrated Modular and Mixed-Scale Systems for Processing the Molecular Cargo of Liquid Biopsy Markers
… bond was demonstrated to withstand high burst pressure (~10 psi or ~50 psi) using a novel in situ bonding method. These valves were integrated into three different systems to successfully control the fluid: a 2-module system for SARS-CoV-2 screening, a 3-module system for …
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Coaxially electrospun heparin-eluting scaffolds for vascular graft application
… electrospinning) were successful but resulted in burst release, reduced bioactivity and rapid elution of the heparin due to bulk degradation of the polymers. This project aimed to develop scaffolds comprising electrospun degradable polyurethane fibres with coaxially incorporated heparin sodium …
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Novel, low-cost, CFRP pressure vessel design for hydrogen fuel cell applications
… of the Carbon Fibre Reinforced Plastic (CFRP) pressure vessel portion of the rocket. The pressure vessel was composed on a long, thin-walled commercial CFRP cylindrical tube that had two Poly Vinyl Chloride (PVC) end caps bonded onto either end with an adhesive. The inside wall of the CFRP tube …
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Near-Field Electrospinning and Characterization of Biodegradable Small Diameter Vascular Grafts
… strength, percent elongation, suture retention, burst pressure, and Young’s modulus were all tailorable for NFES grafts, independent of fiber diameter, compared to TES graft characterization. Lastly, platelet adhesion was attenuated on large pore size NFES grafts compared to the TES grafts which …
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Understanding the development of a reacting fuel jet inside an automotive-size diesel engine using optical and laser-based diagnostics
… interactions while limiting the in-cylinder pressure below the burst-pressure of quartz windows. Planar laser-induced fluorescence imaging of hydroxyl (OH-PLIF), fuel-PLIF, and line-of-sight integrated chemiluminescence imaging were performed for various combustion stages identified by the …