Strain Measurements on Mirage Wing Spar with BFRP Patch Fitted to Drain-Hole Region

摘要

Strains have been measured in a Mirage wing with an eight-layer boron fibre reinforced plastic (BFRP) patch fitted in the region of a fuel drain hole, during a series of ground calibration loadings. The point of these measurements was to determine whether the patch caused any significant, and potentially deleterious, changes in the strains in the main spar. It was concluded that no deleterious changes occurred. (Author)