Abstract
Dental composites are becoming more popular due to their semi white color and appearance. Mechanical damage such as cracks are causing the majority of short-term failures of dental composites. Using self-healing materials most of these failures can be prevented. Fatigue loads are a proper method to characterize the crack initiation and propagation. As healing makes uncertainty about the location of the crack tip, samples of tapered double cantilever beam (TDCB) are frequently used for their crack length independent in the measurements of healing efficiency and fracture toughness of self-healing. Due to the high cost of dental composite materials, tiny, inexpensive TDCB samples, about 30 % of the standard size, were developed and optimized with Rapid Prototyping (Objet 3D printer). FEA is also performed in order to visualize the stress field of the crack tip.
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Kafagy, D., Keller, M. (2016). Experimental Fatigue Specimen and Finite Element Analysis for Characterization of Dental Composites. In: Beese, A., Zehnder, A., Xia, S. (eds) Fracture, Fatigue, Failure and Damage Evolution, Volume 8. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-21611-9_26
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DOI: https://doi.org/10.1007/978-3-319-21611-9_26
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-21610-2
Online ISBN: 978-3-319-21611-9
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