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Self-healing of composite material with an intermediate supramolecular layer

Braakman, Robin (2015) Self-healing of composite material with an intermediate supramolecular layer.

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Abstract:Around the start of the 21st century a new field of study emerged who concerns self-healing material. Self-healing material are a class of materials that have structurally incorporated ability to heal damage caused by mechanical use over time. In this research the self-healing supramolecular material SP1 is investigated. SP1 maintains self-healing ability when acting as adhesive intermediate layer between two plies of composite material. Composite material is a class of materials which have lots of different applications and is used for many purposes. In the first part of the research a production method is designed to make samples of composite material containing an intermediate supramolecular layer with uniform thickness. In the second part of the research a test method for a Double Cantilever Beam (DCB) test is designed in which the samples from the first part can be tested on its fracture toughness, which is a measure of the ability of a material containing a crack to resist fracture. Determining the fracture toughness after the material has supposed to heal itself can say something about the self-healing ability. In the third part of the research DCB tests are performed for several different composite samples containing an intermediate supramolecular layer which varied in thickness to find out the effect of this thickness on the fracture toughness. It is found out that the production method designed to make samples of composite material containing an intermediate supramolecular layer with uniform thickness is useable. The designed test method for testing those samples in a DCB test is also found out to work reliable. The relation between the intermediate supramolecular layer thickness and the fracture toughness shows linear increasing behavior for the tested values of the layer thickness.
Item Type:Essay (Bachelor)
Faculty:TNW: Science and Technology
Subject:51 materials science
Programme:Advanced Technology BSc (50002)
Link to this item:http://purl.utwente.nl/essays/67196
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