HOLOGRAPHIC INTERFEROMETRY ASSESSMENT

In any structural component where load path is diverted due to a change in section, i.e. a delaminated composite component, an adhesively bonded joint or ply drop-offs, and where out-of- plane stresses are induced, component surface displacements will occur. These out-of-plane surface displacements although relatively small, are indicative of internal structural problems that can be associated with component strength capacity limitations. This book discusses the application of a portable holographic interferometry testing system (PHITS) to study micro-deformations of a surface in a wide range of structural defects. The defects covered include delaminations, matrix cracks and matrix degradation due to heat, peel displacement behaviour in bonded lap-joints, debonded and weak bondlines. The results of this optical investigation have extended structural behaviour and mechanics understanding in all of the defect interaction.

Autorentext

Rikard Benton Heslehurst, PhD(UNSW), MEng(Aero), BEng(Aero) CPEng, FIEAust, FRAeS Aeronautical Engineering Officer-Royal Australian Air Force Senior Lecturer, University College, UNSW@ADFA Consultant Engineer.