Results 1 to 10 of about 29,835 (313)

Mechanical response and in-situ deformation mechanism of cortical bone materials under combined compression and torsion loads

PLoS ONE, 2022
Bone fracture is an extremely dangerous health risk to human. Actually, cortical bone is often subjected to the complicated loading patterns. The mechanical properties and deformation mechanism under the complicated loading pattern could provide a more ...
Xingdong Sun, Wandi Wu, Renbo Zhang, Hongru Qu, Jie Wang, Ke Xu, Liangfei Fang, Liangyuan Xu, Rui Jiang   +8 more
doaj   +3 more sources

Singularity analysis of zero-torsion parallel mechanisms [PDF]

2008 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2008
This paper presents the singularity analysis of four 3-DOF symmetric zero-torsion parallel mechanisms. These mechanisms are composed of three identical legs ending with a spherical joint that is constrained to move in one of three equally spaced plane intersecting at one line.
Sébastien Briot, Ilian A. Bonev
openaire   +3 more sources

Effect of loading modes on torsional behavior of an extruded Mg alloy bar

Journal of Materials Research and Technology, 2022
The torsional deformation with shear stress is crucial for improving mechanical performance of wrought Mg alloys. Consequently, the difference of mechanical behavior between fixed-end and free-end torsion was investigated.
Chong Yang, Guoguo Zhu, Bin Li, Yan Peng, Baodong Shi   +4 more
doaj   +1 more source

Correlation of Tibial Torsion With Lower Limb Alignment and Femoral Anteversion in Patients With Patellar Instability

Orthopaedic Journal of Sports Medicine, 2022
Background: Alignment and rotation of the lower extremities have been suggested to be predisposing pathologic factors for patellar instability. Purpose: To elucidate the relationship between the lower limb alignment and lower extremity rotation in ...
Yi Qiao MD, Junjie Xu MD, Xiuyuan Zhang MD, Zipeng Ye MD, Chenliang Wu MD, Caiqi Xu MD, Song Zhao MD, Jinzhong Zhao MD   +7 more
doaj   +1 more source

Continuum mechanics with torsion [PDF]

Continuum Mechanics and Thermodynamics, 2019
New Section 10 on angular momentum conservation has been added.
Peshkov I., Romenski E., Dumbser M.
openaire   +3 more sources

Deformation of Copper Nanowire under Coupled Tension–Torsion Loading

Nanomaterials, 2022
Metallic nanowires (NWs) are essential building blocks for flexible electronics, and experience different deformation modes due to external mechanical loading.
Hongquan Lu, Bin Dong, Junqian Zhang, Chaofeng Lü, Haifei Zhan   +4 more
doaj   +1 more source

Gauge Gravity Vacuum in Constraintless Clairaut-Type Formalism

Universe, 2022
The gauged Lorentz theory with torsion has been argued to have an effective theory whose non-trivial background is responsible for background gravitational curvature if torsion is treated as a quantum-mechanical variable against a background of constant ...
Michael L. Walker, Steven Duplij
doaj   +1 more source

Microfiber optomechanical torsion sensor

Frontiers in Physics, 2023
In this paper, we propose and demonstrate experimentally an optomechanical torsion sensor using a microfiber mechanical resonator. The torsion angle could be obtained by monitoring the resonant frequency shifts of the microfiber resonator.
Qiang Zhang, Qiang Zhang, Jie Zhang, Shiwei Yang, Ruili Zhai, Yuyang Xie, Yongmin Li, Yongmin Li   +7 more
doaj   +1 more source

Relationship between lower limb torsion and coronal morphologies of the femur and tibia in patients with medial knee osteoarthritis

BMC Musculoskeletal Disorders, 2020
Background To investigate the relationship between femoral or tibial torsion and hip-knee-ankle angle (HKA), mechanical lateral distal femoral angle (mLDFA), or mechanical medial proximal tibial angle (mMPTA) in patients with medial knee osteoarthritis ...
Shuntaro Nejima, Yasushi Akamatsu, Hideo Kobayashi, Masaki Tsuji, Shota Mitsuhashi, Takahiro Sasaki, Ken Kumagai, Yutaka Inaba   +7 more
doaj   +1 more source

Influence of Topological Defects on the Mechanical Response of Unit Cells of the Tetrachiral Mechanical Metamaterial

Designs, 2023
The primary benefit of metamaterials is that their physical and mechanical properties can be controlled by changing the structure geometry. Numerical analysis tools used in this work offer a few advantages over full-scale testing, consisting of an ...
Linar Akhmetshin, Kristina Iokhim, Ekaterina Kazantseva, Igor Smolin   +3 more
doaj   +1 more source