Results 51 to 60 of about 10,739 (209)
Nondestructive characterization of the elastic properties of orthotropic composites with ultrasound [PDF]
, 2011 Due to the increasing use of composite materials in critical applications demanding light weight to high strength ratio, reliable evaluation tools are necessary.
Degrieck, Joris +5 more
core
Characterisation of hidden defects using the near-field ultrasonic enhancement of Lamb waves [PDF]
, 2015 Defects that propagate from the inside of a structure can be difficult to detect by traditional non-destructive inspection methods. A non-contact inspection method is presented here that uses the near-field interactions of ultrasonic Lamb waves to detect
Clough, A. R. +1 more
core +1 more source
Review on static component generation of ultrasonic waves in solid media
AIP AdvancesIn nonlinear ultrasonics (NLU), in addition to the well-known second harmonic generation (SHG), a static component (SC) generation occurs when a primary ultrasonic wave propagates through a solid with quadratic elastic nonlinearity.
Xiang Wan +5 more
doaj +1 more source
Sensors, 2021 Ultrasonic guided waves are already used for material characterization. The advantage of these waves is that they propagate in the plane of a plate and their propagation characteristics are sensitive to properties of the material.
Rymantas Jonas Kažys, Olgirdas Tumšys
doaj +1 more source
, 2016 The non-dispersive fundamental shear horizontal (SH0) wave in plate-like structures is of practical importance in non-destructive testing (NDT) and structural health monitoring (SHM).
Huan, Qiang +3 more
core +1 more source
Analysis of ultrasonic transducers with fractal architecture [PDF]
, 2008 Ultrasonic transducers composed of a periodic piezoelectric composite are generally accepted as the design of choice in many applications. Their architecture is normally very regular and this is due to manufacturing constraints rather than performance ...
ANTHONY J. MULHOLLAND +9 more
core +1 more source
Chinese Journal of Mechanical Engineering, 2023 Pinhole corrosion is difficult to discover through conventional ultrasonic guided waves inspection, particularly for micro-sized pinholes less than 1 mm in diameter.
Jinjie Zhou +5 more
doaj +1 more source
Recent advances in the ultrasonic polar scan method for characterizing (degraded) fiber reinforced plastics [PDF]
, 2015 The ultrasonic polar scan (UPS) technique originated in the 1980's as a sophisticated method for inspecting composites. However, it is only in recent times that the true capabilities and strengths of the UPS methodology have been evidenced through ...
Degrieck, Joris +5 more
core +2 more sources
Numerical solution of Rayleigh-Lamb frequency equation for real, imaginary and complex wavenumbers
MATEC Web of Conferences, 2018 Guided waves, especially Lamb waves or shear-horizontal waves, are widely used types of waves for ultrasonic inspection of large structures. Well known property of guided waves is their dispersive character, which means that the propagation velocity of ...
Šofer Michal +2 more
doaj +1 more source
Detection of high-order Lamb waves using an end-face injection of ultrasonic pulses
Results in Physics, 2019 In this work, we report the time-of-flight detection of high-order Lamb waves by using an end-face injection of ultrasonic pulses in plates. We used two piezoelectric transducers attached to the opposite edges of a rectangular plate. We applied the Short
Jesus Manzanares-Martinez +3 more
doaj +1 more source