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  4. Effect of laser surface treatment on the adhesive properties of bonded CFRP joints
 
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Effect of laser surface treatment on the adhesive properties of bonded CFRP joints

Publikationstyp
Conference Paper
Date Issued
2018-06
Sprache
English
Author(s)
Harder, Sergej  
Goralski, Philip  
Scharnagl, Nico  
Hergoss, Philipp  
Schmutzler, Henrik  
Fiedler, Bodo  orcid-logo
Institut
Kunststoffe und Verbundwerkstoffe M-11  
TORE-URI
http://hdl.handle.net/11420/4615
Citation
ECCM 2018 - 18th European Conference on Composite Materials: (2018-06)
Contribution to Conference
ECCM 2018 - 18th European Conference on Composite Materials  
Scopus ID
2-s2.0-85084162151
In this work, the effect of an Ytterbium fibre laser treatment on the adhesive properties of scarf bonded carbon fibre reinforced plastics (CFRP) joints has been investigated. The surfaces were scarfed and afterwards laser treated. The effect of laser treatment on the surface morphology was investigated with scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS). The laser treatment resulted in a morphological and chemical change on the CFRP surface. The introduced thermal energy was able to partly strip and roughen up the carbon fibres. The laser treatment increased the carbon and decreased the oxygen, nitrogen and sulphur content on the surface. With the laser treatment the static and fatigue strength of the scarf bonded joints could be improved.
Subjects
1060 nm laser
Aerospace
Composite repair
Fatigue
Scarf patch
Funding(s)
Laserbasierte Oberflächenaktivierung fĂĽr CFK Klebereparaturen; Teilvorhaben: Bestimmung des Einflusses der Laseraktivierung auf die Material- und Klebeeigenschaften  
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