Fatigue damage is difficult to detect and evaluate non-destructively, specifically at its early
stages (before the macro-crack formation). In this study, fatigue damage is evaluated based …

The quasistatic pulse (QSP) generation of ultrasonic guided waves in composite pipes can
exhibit many features that are useful for early-stage material characterization and structural …

Featured Application The second harmonic measurement method using EMAT proposed in
this paper has established a system that can detect microdefects in wires without destroying …

Nonlinear guided wave (GW) mixing of longitudinal wave is proposed to detect and locate
debonding damage between rebar and concrete in the reinforced concrete beam. Two wave …

The large cutout structure is a key component in the bottom skin of an airplane wing, and is
susceptible to developing fatigue cracks under service loads. Early fatigue crack detection is …

Lithium-ion batteries content complex internal components, such as porous media and
electrolytes, which result in strong scattering and high attenuation of ultrasonic waves in …

Nonlinear effects can enrich the propagation of elastic waves in mechanical metamaterials,
which makes it possible to extend classical phenomena and functions in linear systems to …

Fatigue damage severely impairs high-strength marine steel performance, threatening the
safety of ships and offshore engineering structures. Due to the abrupt nature of structural …

Signal instability due to temperature fluctuations, sensor degradation, and debonding
introduces additional amplitude loss in the detected signals during acousto-ultrasonic …

摘要材料退化或微损伤的早期无损检测和评价可以保障关键结构的安全服役. 因此,
开展缺陷演化的早期评价, 甚至缺陷产生前的早期检测是非常重要的. 通常, 线性超声检测方法对 …