Human error is inevitable, but nondestructive testing (NDT) helps prevent disasters by meticulously checking materials and components, ensuring their readiness and averting potential losses of lives and finances.

In the field of NDT, industrial ultrasonic testing (UT) is a long-established method. However, new materials and components are finding their way into the industry, requiring continuous technological advances. With stricter regulations, workforce shortages, and rising inspection needs worldwide, the urgency for smarter, more efficient inspection methods is critical.

Aircraft wheels are put through aggressive and cyclic NDT inspection protocol and the wheel’s potential for failure has led manufacturers to require various repetitive inspections at regular intervals.

In this article, I will explore the basic principles of phased array ultrasonic inspection and predominantly its applications within the aerospace sector.

Phased array ultrasonic testing (PAUT) has been steadily supplanting conventional ultrasonic testing since its introduction in the early 2000s.

While PAUT is becoming a popular approach for nondestructive inspections, it is important that users understand this technology, its limitations and how it should be applied.

Ultrasonic testing technology has improved dramatically and continuously, now offering advanced imaging power with high resolution.

Manual or human manipulated NDT is still the primary means of performing Nondestructive Testing (NDT) in unique or one-off applications. Mechanical aids and/or computer assisted manipulation and scanning devices can reduce data gathering time on the site of the item being inspected.

Flaws can be found in every type of material and component, no matter the method of manufacturing, processing, or finishing used. Selecting the proper detection method is crucial, because, even if a flaw is not actually a defect, you still want to be able to detect and evaluate them.

Nondestructive testing of large components can be time consuming and requires several people to work quickly to minimize the impact of testing on the large component manufacturing process.