Results 31 to 40 of about 686,620 (189)
Flexural-torsional behavior of thin-walled closed-section composite box beams [PDF]
, 2007 This paper presents a flexural–torsional analysis of composite box beams. A general analytical model applicable to thin-walled box section composite beams subjected to vertical and torsional load is developed.
Lee, Jaehong, Vo, Thuc
core +1 more source
Defect Detection using Power Spectrum of Torsional Waves in Guided-Wave Inspection of Pipelines
Applied Sciences, 2019 Ultrasonic Guided-wave (UGW) testing of pipelines allows long-range assessment of pipe integrity from a single point of inspection. This technology uses a number of arrays of transducers separated by a distance from each other to generate a single ...
Houman Nakhli Mahal +2 more
doaj +1 more source
TORSIONAL WAVE SCATTERING IN TWO-LAYER PIPE WITH ACCOUNT FOR CONTACT RIGIDITY
Известия высших учебных заведений России: Радиоэлектроника, 2018 The purpose of the paper is to study the wave propagation in a two-layer pipe, taking into account the rigidity of the contact between its layers. It is considered by solving the equation of motion for the vector and scalar potentials.
Konstantin E. Abbakumov +1 more
doaj +1 more source
Memory effect of the pp waves with torsion [PDF]
The European Physical Journal C, 2022 AbstractWe analyse the motion of test particles in the spacetime of the plane-fronted (pp) waves with torsion in four-dimensions. We conclude that there is a velocity memory effect in the direction of advanced time and along radial direction, while we have rotation of particles in angular direction.
Cvetković, B., Simić, D.
openaire +3 more sources
Calibration of the torsional and lateral spring constants of cantilever sensors [PDF]
, 2014 Financial support from the EPSRC (EP/K000411/1) and the University of St. Andrews under an Impact Acceleration Account (EP/K503940/1) are gratefully acknowledged.A method suitable for the calibration of the spring constants of all torsional and lateral ...
Hähner, Georg, Parkin, John David
core +1 more source
Performance Study of a Torsional Wave Sensor and Cervical Tissue Characterization
Sensors, 2017 A novel torsional wave sensor designed to characterize mechanical properties of soft tissues is presented in this work. Elastography is a widely used technique since the 1990s to map tissue stiffness. Moreover, quantitative elastography uses the velocity
Antonio Callejas +7 more
doaj +1 more source
Use of periodic structures for mode transformation in cylindrical objects
Research and Review Journal of Nondestructive Testing, 2023 Periodic structure is very useful and powerful tool for the wave manipulation. Many researchers report about elastic guided wave focusing, filtering based on a bandgap, wave steering. wave transformation.
Boris I, Jaesun Lee
doaj +1 more source
On collective nature of non-linear torsional Alfvén waves
Monthly Notices of the Royal Astronomical Society, 2023 ABSTRACT Torsional Alfvén waves in coronal plasma loops are usually considered to be non-collective, i.e. consist of cylindrical surfaces evolving independently, which significantly complicates their detection in observations. This non-collective nature, however, can get modified in the non-linear regime.
S A Belov +5 more
openaire +2 more sources
Flexural–torsional behavior of thin-walled composite box beams using shear-deformable beam theory [PDF]
, 2008 This paper presents a flexural–torsional analysis of thin-walled composite box beams. A general analytical model applicable to thin-walled composite box beams subjected to vertical and torsional loads is developed.
Lee, Jaehong, Vo, Thuc
core +1 more source
Parametric Study of Defect Detection in Pipes with Bend Using Guided Ultrasonic Waves
MATEC Web of Conferences, 2016 The propagation behaviour of guided ultrasonic waves in a steel pipe with welded bend is studied by finite element simulation. The effectiveness of the longitudinal L(0,2) and torsional T(0,1) guided waves in detecting circumferential cut near the weld ...
Jack Tan Jin +3 more
doaj +1 more source