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A Method to Determine the Plastic Bending Angle of Dowel-Type Fasteners
In timber joints with dowel-type fasteners, the yield moment of the fastener is an important parameter. For fasteners of hardened steel, e.g. self-tapping screws, the yield moment cannot be calculated and has to be measured in a bending test as established in EN 409. The yield moment is defined at a plastic bending angle of α = 45°/d0.7. Therefore, the determination of the plastic bending angle is important to derive the characteristic yield moment of fasteners. For a proper derivation of the fastener’s yield moment, the onset of plastic deformations must hence be identified in order to be able to determine the correct plastic bending angle. A new method for the determination of the plastic bending angle was developed which is independent of a ductile or brittle behaviour of the fastener. The method is generally applicable to different fastener types with various diameters.
A Method to Determine the Plastic Bending Angle of Dowel-Type Fasteners
In timber joints with dowel-type fasteners, the yield moment of the fastener is an important parameter. For fasteners of hardened steel, e.g. self-tapping screws, the yield moment cannot be calculated and has to be measured in a bending test as established in EN 409. The yield moment is defined at a plastic bending angle of α = 45°/d0.7. Therefore, the determination of the plastic bending angle is important to derive the characteristic yield moment of fasteners. For a proper derivation of the fastener’s yield moment, the onset of plastic deformations must hence be identified in order to be able to determine the correct plastic bending angle. A new method for the determination of the plastic bending angle was developed which is independent of a ductile or brittle behaviour of the fastener. The method is generally applicable to different fastener types with various diameters.
A Method to Determine the Plastic Bending Angle of Dowel-Type Fasteners
RILEM Bookseries
Aicher, Simon (editor) / Reinhardt, H.-W. (editor) / Garrecht, Harald (editor) / Steilner, Michael (author) / Blaß, Hans Joachim (author)
Materials and Joints in Timber Structures ; Chapter: 28 ; 301-306
RILEM Bookseries ; 9
2014-01-01
6 pages
Article/Chapter (Book)
Electronic Resource
English
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