High-order harmonics and sub-harmonics that are engendered upon interaction between
surface Rayleigh waves and material flaws have been exploited intensively, for …

Curved-surface components (CSC) are ubiquitous in engineering practice such as
automobiles, aerospace and pipelines. However, they are prone to void and crack defects …

This work presents a new ultrasonic imaging framework for non-destructive evaluation of
components with vertical or steeply dip** surfaces and demonstrates its ability of …

The aeroengine casing ring forgings have complex cross-section shapes, when the
conventional ultrasonic or phased array is applied to detect such curved surfaces, the …

The fiber composite materials fabricated by stacking the lamina structure obtain increasing
attention in the industry, and at the same time, damage analysis is essential for safe …

The curved composite structures are popularly used in the aerospace field for their superior
properties. Complexity of structure and geometry generally limit the inspection or monitoring …

Submarine pipelines are a safe and energy-efficient mode of gas transport. However, due to
the complex manufacturing process and harsh operating environment, submarine pipelines …

Ultrasonic phased array testing is commonly employed for inspecting curved structures.
Conventional plane wave imaging techniques, based on delay-and-sum in the time-domain …

Although pressure pipelines serve as a secure and energy-efficient means of transporting
oil, gas, and chemicals, they are susceptible to fatigue cracks over extended periods of …

Metal materials will produce fatigue cracks under long-term cyclic loading. It is difficult to fully
image the topography of defects with the current mainstream ultrasound imaging …