Experimental evaluation of the low-velocity impact damage resistance of CFRP tubes with integrated rubber layer

  • The impact performance of structural components made of fibre-reinforced plastic is often one of the limiting properties during the design process. To improve the damage resistance regarding transverse low-velocity impact loading, a rubber layer (KRAIBON®) is integrated into the composite laminate of tubular carbon/epoxy specimens. Numerous impact tests, using two different rubber compounds and three different layups, are carried out. The specimens are impacted using a modified Charpy pendulum. Force–time histories have been used to determine the damage threshold load. To visualise damage such as delaminations and inter-fibre failures, the impacted samples have been examined using microsectioning. It is shown that a significant improvement in impact damage resistance can be achieved by integrating a rubber layer into a carbon/epoxy laminate.

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Metadaten
Author: Enrico Stelldinger, Arnold Kühhorn, Markus Kober
DOI:https://doi.org/10.1016/j.compstruct.2015.11.069
ISSN:0263-8223
Title of the source (English):Composite Structures
Document Type:Scientific journal article peer-reviewed
Language:English
Year of publication:2016
Tag:Composites; Damage resistance; Low-velocity impact; Tubes
Issue number:139
First Page:30
Last Page:35
Faculty/Chair:Fakultät 3 Maschinenbau, Elektro- und Energiesysteme / FG Strukturmechanik und Fahrzeugschwingungen
Institution name at the time of publication:Fakultät für Maschinenbau, Elektrotechnik und Wirtschaftsingenieurwesen (eBTU) / LS Strukturmechanik und Fahrzeugschwingungen
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