Epoxy-polyamide-methyl ethyl ketone laminate systems simulation on the mechanical properties

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Date
2018-06
Authors
Khairunnisa Abdul Aziz
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Nowadays, finite element analysis (FEA) have become an interest in research industry. This is because advances in computer model development and simulation software facilitate physics-based explorations relying on the principles of mechanics. Due to the increased capabilities of solvers to accommodate and speedy simulations, the availability of algorithms to represent various physiological phenomena, and the development of user interfaces that bring model development to the masses, numerous contributions have been made through the broad use of modelling and simulation in research industry. In this research, the aim of this study is to develop simulation on the properties of epoxy laminate systems by using ANSYS simulation software. Previously, the investigation of low velocity drop impact tests on epoxy laminate systems are carried out by Du Ngoc Uy Lan on a research, ‘Investigation on The Properties of Epoxy-Polyamide Methyl Ethyl Ketone Laminate Systems’ to determine the impact response. Therefore, for my final year project, the experimental results from the Lan’s research worked are required to develop simulation on the properties of epoxy laminate systems and to compare the experimental results obtained from the simulation process with results from experimental work. The aim of conducting dynamic FEA simulations was to closely model and compare the behaviour of the laminates that were tested using the direct impact experiments. The simulations were to be designed to provide an alternate means to validate the impact test results and recommend structural modifications if necessary. A major concern affecting the efficient use of composite laminates is the effect of low velocity impact damage on the structure. A simulation model of a rigid dart is impacted on polyamide cured epoxy and multi-layered epoxy (polyamide with methyl ethyl ketone) which having the different properties of laminate was built using the finite element analysis, SolidWorks. The model was validated by the comparison between the numerical results and the experimental results. It was decided to use the ANSYS finite element analysis software for this step due to its user friendliness and its excellent combination with the SolidWorks software. Polyamide epoxy is designed for maximum impact and abrasion resistance. Epoxy is highly resistant to strong cleaning solutions. This coating may be used for immersion service in fresh or salt water. Polyamide Epoxy is typically used to coat tanks, machinery, structural members, tank wagons, floors, walls and boats. For polyamide-epoxy adduct, the results of the impact strength from the experimental works can be compared with the energy resulted from the simulation. For two-layered laminate, the results not showing positive comparison due to the different properties was collected. From the experiment, the properties were collected from the 0 days storage, which right after the laminate were produced. It is actually, the properties need to be collected according to the days of the test was conducted which are after the 4 days and 15 days storage. For three-layered laminate, the damaged image can be compared between experimental and simulation work. It is proven however, that there is existence of limitation when using simulation.
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