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Gewählte Doctoral Thesis:

Cedou Kumpenza (2021): Bio-based Side Impact Beam as an example for Wood Material in the Automotive industry: Development, Engineering and Testing.
Doctoral Thesis - Institut für Holztechnologie und Nachwachsende Rohstoffe, BOKU-Universität für Bodenkultur, pp 199. UB BOKU obvsg

Data Source: ZID Abstracts
The current trend in the automotive industry is clearly towards structural components consisting of composites made out of two or more materials. With these multi-material solutions, in particular with the inclusion of biomaterials, lightweight structures can be designed that lead to reductions in weight, energy, and costs. Bio-based and renewable materials, such as wood, offer considerable potential for the weight reduction of the structural components without negatively affecting the required mechanical properties. These components are developed and designed using computer-aided engineering. However, the material data available for wood and wood composites is insufficient for complete design and development. Furthermore, no knowledge-based description of the development process of these wood-based multimaterial structures could be found in the literature. Consequently, first of all the dissertation deals with the systematic description of the development process of a wood-based side impact beam, which was used as a representative structural component. In the second part of this thesis the focus is on the experimental characterization of required mechanical material parameters, which have been considered to be needed during the development process of the side impact beam. In this context, special importance is given to the investigation of the joining technology. The last section of this dissertation deals with the optimization of the strength and deformation behavior of the side impact beam. For this purpose, fracture mechanisms and construction principles from nature are analyzed and transferred to the design of the side impact beam. Compared to conventional side impact beams, weight has been reduced without noticeable loss of mechanical performance. Furthermore, accompanying life cycle assessments have shown that a bio-based side impact beam has a positive effect on the greenhouse potential.

Betreuer: Müller Ulrich
1. Berater: Gindl-Altmutter Wolfgang
2. Berater: Krenke Thomas

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