STRUCTURAL REPAIR HAVING OPTICAL WITNESS AND METHOD OF MONITORING REPAIR PERFORMANCE

摘要

A structural repair includes a tell-tale optical witness that allows the health of the repair to be visually monitored. The optical witness includes a stress sensitive fluorescent dye that shows changes in local strain/stress patterns when the repair is subjected to electromagnetic energy of a particular wavelength. The dyes fluoresce more or less strongly as a function of the local stress/strain.

主权项

1. A structural repair, comprising:
a patch adapted to be adhesively bonded to a structure requiring repair; and a layer of material covering the patch for visually indicating changes in the repair.