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1	Evaluation of Impact Loading Rates Dependency on Prescale Pressure Film Danell Lindström, Emma, El-Ghorayeb, Graziella January 2017 (has links) Migraine is the third most common medical condition in the world. Xiaogai Li have a hypothesis that implies that a hit to the head when first sensing the aura symptoms will stop the migraine attack. An investigation was made to ensure that the blow does not cause a head injury. The prescale pressure film from Fujifilm is a sensor that measures pressure and the pressure distribution. It is supplied with charts to determine the pressure when purchased. The pressure film was used to measure the reached loading impact from the blow. The new chart for the pressure film would in that case be used to create simulations to study the potential brain damage a hit to the head can result in. This paper examines whether loading rates has an influence on a prescale pressure film from Fujifilm, in order to create new pressure charts if such dependency is found. The testing was made with the help of a loading machine where the desired force could be set. The results showed a lower color density in the test results when comparing with the provided charts. The reason for this is unknown, although it could be a consequence of the environmental conditions that the pressure film was held in. The conclusion made by studying the results was that no loading rate dependency exists. Fujifilm Prescale Pressure Film Migraine Medical Engineering Medicinteknik
2	Tire Contact Patch Characterization through Finite Element Modeling and Experimental Testing Mathews Vayalat, Thomas 04 October 2016 (has links) The objective of this research is to provide an in-depth analysis of the contact patch behavior of a specific passenger car tire. A Michelin P205/60R15 tire was used for this study. Understanding the way the tire interacts with the road at various loads, inflation pressures and driving conditions is essential to optimizing tire and vehicle performance. The footprint shape and stress distribution pattern are very important factors that go into assessing the tire's rate of wear, the vehicle's fuel economy and has a major effect on the vehicle stability and control, especially under severe maneuvers. In order to study the contact patch phenomena and analyze these stresses more closely, a finite element (FE) tire model which includes detailed tread pattern geometry has been developed, using a novel reverse engineering process. In order to validate this model, an experimental process has been developed to obtain the footprint shape and contact pressure distribution. The differences between the experimental and the simulation results are discussed and compared. The validated finite element model is then used for predicting the 3D stress distribution fields at the contact patch. The predictive capabilities of the finite element tire model are also explored in order to predict the handling characteristics of the test tire under different maneuvers such as pure cornering and pure braking. / Master of Science Tire finite element modeling footprint phenomena contact patch steady state rolling Fujifilm Prescale
3	Predicting the Deformation of 3D Printed ABS Plastic Using Machine Learning Regressions Stellmar, Justin 12 May 2020 (has links) No description available. Artificial Intelligence Experiments Mechanical Engineering Plastics Additive Manufacturing 3D Printing Regression ML Machine Learning MATLAB Image Processing Prescale Fujifilm ABS FDM Compression Testing

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