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Fatigue Simulation of Fiber Reinforced Plastics - A Contribution to Ultra Lightweight Engineering through enhanced Simulation Methods
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology.
2012 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The dimensioning of automotive structures made of fiber reinforced plastics (FRP) today requires to involve safety factors preventing from making full use of the materials’ lightweight potential. Fatigue design seems necessary in order to promote a reduction of fuel consumption through decreased weights. Hereby, the design process in early development stages can be supported by fatigue simulation tools of which methodologies are evaluated in this Master thesis in terms of applicability, complexity, quality of results and computational power. For a comparison, subsequently three tools are used to predict fatigue life of a CFRP component. Results are taken as the groundwork to give a recommendation for the standard simulation process. To classify the contribution of this work towards ultra lightweight engineering, it is furthermore shown how it can theoretically influence the environmental impact of composite materials. Investigating a life cycle analysis as it is carried out in automotive industry today serves as the basis for this evaluation. Essentially, it is shown that there are applicable FRP fatigue prediction methods available, although there is the need for further testing and development. Literature thereby displays issues concerning an environmentally friendly production of composites.

Place, publisher, year, edition, pages
2012. , 57 p.
Keyword [en]
CFRP, fatigue, FE simulation, automotive, environmental impact
National Category
Energy Engineering
URN: urn:nbn:se:kth:diva-96775OAI: diva2:534582
Educational program
Master of Science - Sustainable Energy Engineering
2012-06-05, M273, Brinellvägen 68, Stockholm, 09:30 (English)
Access to the fulltext of this thesis requires the written consent of AUDI AG.Available from: 2012-06-25 Created: 2012-06-12 Last updated: 2012-06-25Bibliographically approved

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