Results 11 to 20 of about 21,426 (264)

Self-Drilling Versus Self-Tapping Screws: A 3D Finite Element Analysis [PDF]

open access: yesCraniomaxillofacial Trauma & Reconstruction, 2021
Study Design: Self-tapping and self-drilling screws are twomodalities available for plate fixation. Whencompared to self-drilling, self-tapping screws have a few drawbacks like screw loosening, thermal osteolysis, equipment dependent, and time-consuming.
Kavitha Prasad   +2 more
exaly   +3 more sources

BOLTED TIMBER JOINTS WITH SELF-TAPPING SCREWS

open access: yesRevista EIA, 2007
The use of self-tapping screws with continuous threads in the joint area as a reinforcement to avoid splitting of timber members is studied. A theoretical model is developed to calculate the stress distribution around a pin-loaded hole in a timber joint,
César Echavarría
doaj   +4 more sources

Drive-in torque for self-tapping screws into timber [PDF]

open access: yesProceedings of the Institution of Civil Engineers - Construction Materials, 2022
Self-tapping screws have been widely used in timber constructions. The current practice considers self-tapping screws perform best in connecting two members when they are fully threaded; however, the drive-in resistance caused by the friction between the wood and the screw can potentially damage the screw and reduce the effectiveness of its ...
Cong Zhang   +3 more
openaire   +4 more sources

Glulam connections assembled with screws in different installation angles

open access: yesMaderas: Ciencia y Tecnología, 2021
Self-tapping screws are the recognized state-of-the-art in fastener technology for timber structures. Combining fasteners of different stiffness, such as self-tapping screws with different installation angles, can be advantageous to simultaneously ...
David Hanna, Thomas Tannert
doaj   +4 more sources

Effect of Physical Properties of Softwoods on Embedment Strength Performance of Self-tapping Screws

open access: yesBioResources, 2023
The embedment strength performance of the self-tapping screw (STS) connector, used as a cross-laminated timber fastener, was evaluated considering tree species’ density and load direction as parameters.
In-Hwan Lee, Keon-Ho Kim
doaj   +4 more sources

Prediction of Withdrawal Resistance of Self-Tapping Screws in Softwood Structural Lumber

open access: yesBioResources
The withdrawal resistance of self-tapping screws (STS) in Korean structural softwood in the vertical fiber direction was examined. Four representative softwood species were selected based on their specific gravity.
In-Hwan Lee, Keonho Kim
doaj   +4 more sources

Avaliação biomecânica da influência do macheamento e do desenho dos parafusos cervicais Biomechanical evaluation of the influence of cervical screws tapping and design [PDF]

open access: yesRevista Brasileira de Ortopedia, 2009
OBJETIVO: Avaliar a influência do desenho do parafuso (autoperfurante e automacheante) e do macheamento do orifício-piloto sobre o torque de inserção e a força de arrancamento dos parafusos utilizados para a fixação anterior da coluna cervical.
Patrícia Silva   +5 more
doaj   +2 more sources

Mechanical Properties of Glulam Moment-Resisting Joints Reinforced by Inclined Self-Tapping Screws

open access: yesBioResources
Self-tapping screws (STS) are an effective fastener to enhance wooden moment-resisting joints. However, the effects of the arrangement and insertion angle of STS on the mechanical properties of wooden joints are less studied.
Shuo Wang   +6 more
doaj   +4 more sources

Self-tapping screws as reinforcement for timber structures [PDF]

open access: yes, 2009
Modern self-tapping and continuously-threaded woodscrews enable new methods for strengthening and joining timber and glulam construction elements. As these screws have a high axial strength and an excellent continuous bond to the wood they can be used similar to steel reinforcement in concrete construction.
TRAUTZ, Martin, KOJ, Christoph
openaire   +2 more sources

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