Development of a repair-methodology for carbon fiber reinforced components

EraSME ReCarboFit: April 2012 – March 2014

With its high rigidity, stability, fatigue strength and low weight, carbon fiber reinforced plastics, short CFRP, own outstanding mechanical characteristics. Thereby these materials have become interesting for a broad range of application areas. CFRP is increasingly used in aviation-, automotive- and in high performance sports-industry for quite a few years now. Today the remaining disadvantage of the material is by far the restricted suitability for repair in case of damage.

 Especially in aviation-, automotive-, and high performance sports-industries, damages are very common. The consequence of this is that today a complete product replacement and the subsequent scrapping of the damaged part takes place. A comprehensive market research conducted by Fraunhofer reveals that repairing of only visible damages is occasionally successful. There is no method based approach enabling SME’s to repair the appearing spectrum of CFRP components on the market. Therefore this research on innovative inspection-, repair- and testingmethodologies for damaged carbon fiber reinforced components is outlined in order to increase both product safety and sustainable material use of CFRP.

The overall aim of this two-years-project is the development of an inspection-, repair- and testing-methodology for damaged carbon fiber reinforced components. The innovation of this project is to develop, establish and standardize these required repair proceedings including the following steps:

  • Damage analyses of carbon fiber reinforced components
  • Development of a classification model of the damages
  • Investigation of analysis methods for damage detection
  • Development and evaluation of repair procedures
  • Strength of material testing for the repaired components
  • Investigation of cost effort and economic/ecologic aspects

By developing these steps in a SME suitable proceeding SME’s will be enabled to repair carbon fiber reinforced components, which nowadays are scraped or only aesthetically repaired. Initially representatives from research as well as from industry have been involved as well as assigned tasks according to their respective competence and experience was defined. This consortium consists of 1 Austrian RTO and 2 German RTOs with an intensive background in the CFRP-industry as well as non-destructive characterization of CFRP. Entirely 7 partners from industry are involved to ensure the portability of the project results both in different branches in the field of CFRP-design and their different roles in the value chain.


Consortium management / Project management

Bayreuth University, Germany
Dipl.-Ing. Florian Ellert
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Contact FH-Wels

Dr. Johann Kastner
Tel: +43 (0) 50804-14110
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DI(FH) Bernhard Plank, MSc
Tel.: +43 (0) 50804-44408
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