NDE of aerospace composites with Laser Shearography

Siebert, T.; Dantec Dynamics GmbH; Germany

Siebert, T.; Dantec Dynamics GmbH; Germany
Crabus, G.-S.; Dantec Dynamics GmbH; Germany
König, C.; Dantec Dynamics GmbH; Germany

ID: ECNDT-0503-2018
Download: PDF
Session: Aerospace 6
Room: G1
Date: 2018-06-13
Time: 14:30 - 14:50

NDE of aerospace composites with Dantec Dynamics’ Laser Shearography

Author: G.-S. Crabus
Company: Dantec Dynamics GmbH
Kaessbohrerstr. 18, 89077, Ulm, Germany
Tel: +49-731-933-2200
Fax: +49-731-933-2299
Email: gsc@dantecdynamics.com

Relevance of the work:
– Aerospace
– NDE of composites
– Technologies and Instrumentation

Laser Shearography, an optical based Non-Destructive Testing (NDT) technique identifies internal material discontinuities or anomalies in components within seconds. The sensor measures microscopic surface deformations caused by internal flaws when a small stress is applied to the object. This can be done using thermal, pressure, vibration or mechanical excitation. The results are readily available during the non-destructive measurement itself.

Dantec Dynamics’ Laser Shearography are portable, compact and robust inspection systems that efficiently finds flaws where other NDT methods don’t. Two inspection philosophies are available: [versatile excitations and object dimensions] or [fast inspection and fix setup]. The FlawExplorer has the ability to inspect areas up to 2 m² (20 ft²) in one heat/ vacuum / vibration shot within a minute whereas the Hood Q-810 system can provide a vacuum-excited A4 inspected area within 20 seconds.

In the aerospace industry, manufacturing plants but also service companies are confronted to challenging composite failures on a daily basis. Laser Shearography provides a reliable solution for the detection of flaws like: Delaminations, Disbonds, Cracks, Crushed core, Kissing bonds, Impact damage (BVID’s), Wrinkles, Fluid ingress, Cracked cores, Repair defects, Voids, Foreign Objects, etc.

This presentation will highlight the technology itself, but also its actual and potential contribution to the enhancement of the NDE in the aerospace industry.