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Composite Inspection

Composite Inspection

The use of composites in nearly all industry sectors is growing as a result of the excellent strength to weight ratio.  Modern aerospace, marine and wind energy structures are heavily reliant on composite materials, but by their very nature, their inhomogeneity makes them a challenge for inspection.  With a large variation of material types, lay-up and the use of sandwich core and variations in the quality of manufacturing, often conventional ultrasonic inspection can struggle to produce a consistent result.

Certain types of foam core or glue lines can act as a barrier to sound transmission as can porosity and voids in the resin.  NDT Systems offers a wide range of unique composite inspection solutions using standard and imaging flaw detectors and bond testers complemented by an extensive range of transducers for both monolithic and sandwich constructions. 

Most monolithic carbon and glass based reinforced composites will often be consolidated enough to yield a strong ‘back wall echo’ allowing inspection with conventional ultrasonic methods.  However, for most resin infused materials, sandwich structures and any lay-up with the presence of air, the high scattering of sound means this method no longer works.  In this case a lower frequency probe, through transmission or an alternative technique, such as bond testing, is required.

Amongst many products, NDT Systems Inc., offers specialized bond testers such as the Bondascope 3100 and the Curlin Air, and now even imaging bond testing systems, compatible with x-y scanners for ultrasonic and bond testing C-scan imaging.  These instruments can use a wide range of probes to provide the best solution for the application.

Typical applications: Composite thickness measurements, Inter-laminar or bond line flaw detection, delaminations, cracks, voids, porosity, foreign objects

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  • NovaScope 6000

    • Class leading ultra thin spatial resolution
    • High-Resolution (0.0001in, 0.0025mm)
    • Multi-probe capability
    • Touchscreen controls
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  • Curlin Air

    • Air coupled UT
    • Non-contact, no surface preparation
    • Remarkable penetrating power
    • Alarm modes
    • Programmable user setups
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  • Bondascope 3100

    • Handheld Bond Tester
    • Pitch-catch, Mechanical Impedance (MIA) and Resonance modes
    • Programmable user setups
    • Automatic probe recognition
    • Alarm modes, impedance plane
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