Brittle failure in the parallel-to-grain direction of timber connections with small diameter dowel-type fasteners: A new design model for plug shear

•Brittle failure modes may happen in timber connections loaded parallel-to-grain.•A new model for brittle failure in joints with small diameter fasteners is proposed.•As a design model, it aims to be clear and simple for designers.•The new proposal improves the accuracy of the existing models. Timbe...

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Bibliographic Details
Published in:Engineering structures 2021-08, Vol.241, p.112450, Article 112450
Main Authors: Yurrita, Miguel, Cabrero, José Manuel, Moreno-Zapata, Ezequiel
Format: Article
Language:English
Subjects:
Brittle failure
Brittleness
Design
Dowels
Ductile-brittle transition
Eurocode 5
Failure
Fasteners
Model accuracy
Parallel-to-grain
Small diameter fastener
Timber connection
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Summary:•Brittle failure modes may happen in timber connections loaded parallel-to-grain.•A new model for brittle failure in joints with small diameter fasteners is proposed.•As a design model, it aims to be clear and simple for designers.•The new proposal improves the accuracy of the existing models. Timber connections with steel dowel-type fasteners may fail in ductile or brittle ways. The design of this joints was traditionally focused on ductile failure, assuming that brittle failure could be avoided by means of geometrical limitations. However, recent studies demonstrated that these assumptions do not always guarantee ductile failure. A new design model for timber connections with small diameter dowel-type fasteners is provided in this paper. Its improved accuracy is demonstrated by analysing an extensive database of experimental tests and comparing its prediction accuracy to that of existing models.
ISSN:0141-0296
1873-7323
DOI:10.1016/j.engstruct.2021.112450