Validating sideband peak count-index (SPC-I) technique as a hybrid linear/nonlinear ultrasonic technique through numerical modeling and experiment [0.03%]
通过数值建模和实验验证边带峰值计数指数(SPC-I)技术作为混合线性/非线性超声波技术的有效性
Guangdong Zhang,Meng Wang,Othmane Achouham et al.
Guangdong Zhang et al.
The sideband peak count-index (SPC-I) technique has been widely used to assess material nonlinearity. However, its ability to capture true nonlinear responses of materials and structures has not convinced some researchers yet. This is becau...
Modeling nonlinear scattering of phospholipid-coated microbubbles in elastic media [0.03%]
弹性介质中磷脂包覆微气泡的非线性散射模型研究
Ali Rezaei,David Fernández Rivas,Guillaume Lajoinie et al.
Ali Rezaei et al.
Microbubble contrast agents are well-known in the biomedical field for their ability to enhance the contrast in ultrasound imaging and to facilitate targeted drug delivery within the body. Upon injection into the vasculature, these bubbles ...
Enhanced Flow Detection through a Steel Barrier using Doppler Ultrasound: a Numerical and Experimental Study [0.03%]
基于多普勒超声的钢板处血流增强检测方法的数值和实验研究
Andreas Sørbrøden Talberg,Cristiana Golfetto,Tonni Franke Johansen et al.
Andreas Sørbrøden Talberg et al.
Uncontrolled leakages of hydrocarbons from oil and gas wells can have vast environmental consequences and lead to huge costs for the companies responsible. Thus, preventing and detecting potential leakages in wells is of great importance. I...
Evaluation of early-stage corrosion damage using quasi-static component pulse generated by longitudinal critically refracted (LCR) wave [0.03%]
基于纵向临界折射波的准静态裂纹脉冲评价早期疲劳裂纹腐蚀损伤研究
Meng Qinghang,Gu Bin,Yuan Weifeng et al.
Meng Qinghang et al.
The nonlinear ultrasonic technique is an effective method for characterizing early-stage damage, such as initial corrosion, plastic deformation, and creep. However, the nonlinear response signal induced by micro-damage is typically one or t...
Flexural-guided-wave mode F(1,1) based inspections for small-bore tubes with bends [0.03%]
基于弯曲小直径管中F(1,1)挠曲模态的检测方法
Wu Wenjun,Wu Wentao,Wang Li et al.
Wu Wenjun et al.
Small-bore tubes, which typically serve as critical industrial components, are challenging to inspect due to their inaccessibility and small dimensions. This paper investigates inspections of small-bore tubes with bends using the flexural g...
Development of an automatic damage detection methodology using ultrasonic piezoelectric sensors under varying temperature conditions [0.03%]
基于压电超声传感器的变温工况下自动损伤检测方法研究
Trésor Kanyiki
Trésor Kanyiki
This article presents an experimental study of the effects of temperature variations on ultrasonic waves and proposes a methodology to improve the robustness of damage-detection indicators under such environmental conditions. The investigat...
Full-wave modeling of transcranial ultrasound using volume-surface integral equations and CT-derived heterogeneous skull data [0.03%]
基于体积-表面积分方程和CT分割的异构头骨数据的全波颅内超声建模
Alberto Almuna-Morales,Danilo Aballay,Pierre Gélat et al.
Alberto Almuna-Morales et al.
Transcranial ultrasound therapy uses focused acoustic energy to induce therapeutic bioeffects in the brain. Ultrasound must be transmitted through the skull, which is highly attenuating and heterogeneous, causing beam distortion, reducing f...
Effective stress monitoring in structures using sideband peak count-index of nonlinear guided waves [0.03%]
基于非线性导波边带峰值计数指数的结构有效应力监测方法
Yiwei Liu,Meng Wang,Tribikram Kundu et al.
Yiwei Liu et al.
Ultrasonic guided waves are widely used for structural health monitoring, while traditional stress detection methods based on weak nonlinear elasticity theory suffer from limited sensitivity. This study presents a numerical investigation us...
Defect-parameterized physics-informed neural network for forward and inverse modeling of laser ultrasonic wavefield [0.03%]
基于缺陷参数化的物理约束神经网络及其在激光超声波场正、逆问题中的应用
Liu Yang,Peipei Liu,Kiyoon Yi et al.
Liu Yang et al.
Accurate and efficient non-destructive evaluation (NDE) techniques are essential for ensuring the structural integrity of metallic components, where surface defects, as one of the most common types, can severely compromise fatigue life and ...
Numerical characterization of quasi-longitudinal and quasi-shear waves in anisotropic polycrystalline microstructures with elongation and texture [0.03%]
各向异性拉伸和织构多晶微结构中的准纵向波和准剪切波的数值表征
Vincent Dorval,Nicolas Leymarie,Alexandre Imperiale et al.
Vincent Dorval et al.
Texture and grain elongation can occur in metallic microstructures due to various manufacturing processes, such as welding or rolling deformation. These microstructural characteristics generally lead to anisotropic macroscopic properties to...