An ultrasonic phased array detection device for r-zone of composite materials

Abstract

The invention belongs to the technical field of non-destructive detection and specifically relates to an ultrasonic phased array detection device for a composite R area. The detection device comprises a water bag coupling module and a support module; the water bag coupling module comprises a water bag and a probe; liquid is filled in a water bag chamber of the water bag; one side of the probe, oriented to a workpiece, is wrapped by a water bag sleeve of the water bag; the water bag coupling module can realize the excellent coupling of the probe and the workpiece R areas in different curvatures through the water bag; the support module is used for realizing the stable support of the probe. The detection device requires no water logging type coupling, is not limited to an external field test condition, is suitable for the ultrasonic detection for the R areas in different curvatures and can avoid the condition that the structural component cannot be ultrasonically detected under the effect of manufacturing deviation.

Description

Technical field [0001] The present invention mainly belongs to the technical field of non-destructive testing, and specifically relates to an ultrasonic phased array testing device for R zone of composite materials. Background technique [0002] R zone is common in composite spars and wall trusses. Because R zone is limited by shape and space size, the radius of curvature of the arc area is small, which is not conducive to the coupling of the ultrasonic probe and cannot guarantee the detection surface of the incident sound beam and the arc area. Vertical, the sound beam cannot cover the entire arc area and other issues, which will affect the sensitivity of detection and defect detection rate. [0003] The existing non-destructive testing of the R zone of composite materials mainly adopts conventional ultrasonic testing technology and ultrasonic phased array testing technology. Because the ultrasonic phased array can realize a multi-angle scan, etc., it can ensure the uniformity and...

AI Technical Summary

Problems solved by technology

[0004] Ultrasonic phased array detection technology in the R zone of composite materials. The existing probe fixture device needs to be coupled by water immersion or customized wedges of specific shapes. For large structural parts or in field tests, water immersion detection is more difficult. It is difficult to implement, and for the custom wedge method, the R-zone structural parts with different curvatures cannot be shared. When the curvature of the R-zone curvature of the structural parts deviates from the design plan, the original customized wedges will not be able to couple.

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