Corrosion invaded the inside of the Boeing 737 lap splice, beneath the galley and the latrine, where they observed ``pillowing`` from volume build-up of corrosion by-products. Just two special bolts and a bar spacer are needed to join the top post to the base post. The LAP SPLICE is a ground- mounted breakaway system for any size SP-80 RIB-BAK U-channel. For concrete inspections, we mapped DBIR temperature and emissivity-ratio patterns to better interpret surrogate delamination sites within naturally-heated, concrete slabs and remove the clutter mask from sand pile-up, grease stains, rocks and other surface =, which characterized shallow skin defects within the lap splice at early times (0.4 s). The simplest, easiest-to-use and most economical breakaway signpost system. Temperature and thermal inertia maps characterized defect sites, types, sizes, thicknesses, thermal properties and material-loss effects from air frame corrosion. Emissivity-ratio maps tagged and removed clutter sites from uneven paint, dirt and surface markers. For airframe inspections, we used time-resolved DBIR temperature, emissivity-ratio and composite thermal inertia maps to locate corrosion-thinning effects within a flash-heated Boeing 737 airframe. Our emissivity-ratio maps tagged and removed the masking effects of surface clutter. Usually by using three types different splices are prepared, lap. Our surface temperature maps depicted defect sites, which heat and cool at different rates than their surroundings. Proper splicing of reinforcing bars is so important to integrity of reinforced concrete. Using selective DBIR image ratios, we enhanced surface temperature contrast and removed surface emissivity noise associated with clutter. We are developing dual-band infrared (DBIR) imaging and detection techniques to inspect air frames and concrete bridge decks for hidden corrosion damage.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |