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Adhesively bonded timber joints - to which extent do defects matter?

: Vallée, T.; Fecht, S.; Grunwald, C.; Tannert, T.

Volltext (PDF; )

Salenikovich, A.:
WCTE 2014, World Conference on Timber Engineering. Proceedings : Quebec City, Canada, August 10-14, 2014
Quebec, 2014
Paper ABS337, 2 S.
World Conference on Timber Engineering (WCTE) <2014, Quebec>
Konferenzbeitrag, Elektronische Publikation
Fraunhofer IFAM ()

Although adhesively bonded timber joints have proven their suitability as a structural joining method, often yielding in better mechanical performance, practitioners remain reluctant to consider them as a substitute for traditional mechanical fasteners. Among the reasons invoked, the quality control with regard to defects in the adhesive layer remains the most challenging. Little research has been put into the evaluation of the effect of defects, respectively to which extent they really influence the capacity of bonded joints. This research sheds new light on that topic by presenting experimental evidence completed by numerical calculations, showing that the issue of defects on joint capacity is usually overestimated.