Results 171 to 180 of about 11,405 (203)

Pretapped and self-tapping screws in the human midface: Torque measurements and bone screw interface

International Journal of Oral and Maxillofacial Surgery, 1990
Better contact between AO miniscrews and the bone and greater resistance against torque are achieved in the human midface if the thread is not pretapped. This was demonstrated by 60 methacrylate fixed human midfacial bone sections and by 100 torque measurements. It is concluded that pretapping is not to be recommended in the thin bone of the midface.
openaire   +2 more sources

Self-Tapping Screw Performance in Aluminum-Steel Joints

Volume 2: Advanced Manufacturing, 2016
Over the last few decades, lightweight material joints including plastics, aluminum, magnesium and various composites have been widely used in many mechanical and structural applications such as automotive, aircraft and so on, for their high strength-to-weight ratio and the significant improvement for the fuel economy and energy efficiency.
Zhijun Wu, Sayed A. Nassar, Kshitij Satav, Shraddha Jagatap   +3 more
openaire   +1 more source

Delayed fracture on self-tapping screws

2013
Hydrogen induced fracture on two different screw stocks (UNI C16 modified and UNI C23BKD) was analysed.Fracture toughness has been evaluated by area reduction measurements carried out on carbonitrided specimens, fractured by tensile test, and rupture angle measurements on specimens broken by torsion tests.Specimens were cathodically charged with ...
Quadrini, E., Polenta, R.
openaire   +1 more source

Mechanical properties of self-tapping screws and nails in wood

Canadian Journal of Civil Engineering, 2002
This paper presents results of a research programme investigating the mechanical properties of self-tapping screws and nails in wood. The programme consisted of deformation-controlled tests to determine embedment strength, withdrawal strength, pull-through strength, bending capacity of individual screws, shear strength of screwed and nailed wood–wood ...
openaire   +2 more sources

Investigation on the mechanical behavior of glulam spliced joints connected with self-tapping screws and prestressed steel strips

Construction and Building Materials, 2023
Jingxian Zhao
exaly  

Behaviour of Self-Tapping Screws Under Shear

2023
M. Divya, R. Senthilkumar, Prince George
openaire   +1 more source

Cutting Flute and Thread Design on Self-Tapping Pedicle Screws Influence the Insertion Torque and Pullout Strength

Applied Sciences (Switzerland), 2022
Lien-Chen Wu, Yueh-Ying Hsieh, Fon-Yih Tsuang   +2 more
exaly  

Reinforcement of Timber Dowel-Type Connections Using Self-Tapping Screws and the Influence of Thread Configurations

Forests, 2023
Cong Zhang, Haoyu Huang, Wen-Shao Chang   +2 more
exaly  

Calibration of Resistance Factor for Self-Tapping Screws in Canada

Journal of Structural Engineering, 2022
T. Joyce, Y. H. Chui
openaire   +1 more source

Embedment and withdrawal stiffness predictions of self-tapping screws in timber

Construction and Building Materials, 2022
Abdul Hamid Mirdad, Rafid Khan, Jan Niederwestberg   +2 more
exaly