Results 21 to 30 of about 2,607,929 (307)
“Quasi-complete” mechanical model for a double torsion pendulum [PDF]
Physical Review D, 2013 We present a dynamical model for the double torsion pendulum nicknamed PETER, where one torsion pendulum hangs in cascade, but off-axis, from the other. The dynamics of interest in these devices lies around the torsional resonance, that is at very low frequencies (mHz).
De Marchi, F +10 more
openaire +5 more sources
Quantification of Friction Force on Dual-Axis Micro-Mechanical Probe for Friction Force Microscopy
Tribology Online, 2010 Conventional friction force microscopes (FFMs), where micro cantilever probes are used, have a disadvantage that the accurate quantification of friction force has not been established yet.
Hiroaki Amakawa +4 more
doaj +1 more source
Design and Performance Research of Flexible Drill Pipe Joint Based on Bionic Theory
Geofluids, 2021 Fatigue fracture is the main failure form of mining drill pipe joints, which directly leads to the occurrence of drill pipe drop accidents. Based on the principle of engineering bionics, the spine structure and kinematic behavior characteristics of ...
Chuanliu Wang, Pei Ju
doaj +1 more source
Alternative dynamic torsion test to evaluate the elastic modulus of polymers
Materials Research Express, 2020 This work presents an alternative for the determination of the torsion modulus, G, of polymers. These materials may be subjected to shear stresses in some structural applications; thereby, the knowledge of G is of great interest.
Lucas Pereira Piedade +4 more
doaj +1 more source
, 2022 Thin-walled bars with an open cross-section are widely used in mechanical structures where weight and size control are particularly required. Thus, this paper attempts to propose a theoretical model for predicting the mechanical properties of a thin ...
Zhanda Huang +3 more
core +1 more source
A method for in situ SEM fracture studies of brittle materials using the double torsion technique : application to nuclear graphite [PDF]
, 2011 This work concerned the design and development of a miniature double torsion (DT) testing rig, for use inside the chamber of a scanning electron microscope, to perform in situ loading studies of brittle materials using the DT fracture mechanics specimen.
Rosie, Kathryn A
core +1 more source
Mechanisms of divergent torsional strain in myopia
Modern technologies in ophtalmology, 2023 Perpose. To study the mechanism of extralenticular accommodation under conditions of divergent torsional strain (DTS). Material and methods. The study involved 14 students (28 eyes) with mild and moderate myopia, whose average age was 21.7 years. Among them were 4 boys and 10 girls.
A.N. Zakieva, D.I. Terekhina
openaire +1 more source
Torsion modulus using the technique of mechanical spectroscopy in biomaterials
, 2017 This work presents a new alternative to studying and determining the shear or torsion modulus, G. For this purpose, a measuring system was constructed with a rotational motion sensor coupled to a torsion pendulum that allowed the determination of the ...
Carlos R. Grandini +8 more
core +1 more source
Journal of Materials Research and Technology, 2019 In this study, the mechanical spectroscopy technique was applied to measure the torsion modulus of Ti-xZr (where x = 0, 5, 10 and 15 wt%) alloys for dental applications.
Carlos A.F. Pintão +2 more
doaj +1 more source
Applied Sciences, 2023 Inspired by the macro/microstructures of starfish and beetle elytra, a series of bio-inspired structures (BSs) with improved comprehensive mechanical performance were proposed and fabricated.
Lili Liu +4 more
doaj +1 more source