MATERIAL - ADHESIVE - DYNABOND 132 - ADDITIONAL TESTING AND DISPOSITION OF SPECIMENS REMAINING FROM 420 F CREEP TEST (50-2895)
Abstract
Creep results on Dynabond 132 bonded panels reported herein are not conclusive, because the annealed stainless steel skins were loaded very close to their yield point. Dynabond 132 bonded sandwich panels will produce core shear failure of annealed and heat treated (Condition TH1050) 3-15 NP, PH15- 7Mo honeycomb core at 420 F. At 500 F, core shear failure is produced in the annealed core, but not in the heat treated core. Exposure to salt spray, and humidity for 30 days had no detrimental effect in the bond and no penetration of salt or moisture was fotnd in any of the interior cells of the sandwich panels. (Annealed stainless steel skin-GRP core specimens, exposed to humidity, are an exception to this general conclusion. Previous creep testing of the panel from which the specimens were cut or the cutting technique, may have partially caused the low flatwise tension valtes.)
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 28, 1964
- Accession Number
- AD0438781
Entities
People
- I. K. Spiker
Organizations
- General Dynamics