Resistance Of Adhesive-Bonded Metal Lap Joints To Environmental Exposure
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Report Number: WADC TR 59-564 Part 2
Author(s): Olson, W. Z., Eickner, H. W., Lulling, R. M.
Corporate Author(s): Forest Products Laboratory
Laboratory: Directorate of Materials and Processes
Date of Publication: 1962-10
Pages: 32
Contract: DO 33(616)61-06
DoD Project: 7381
DoD Task: 738103
Identifier: AD0291663
Abstract:
An investigation was made of the relative durability of metal-bonding adhesives in exterior exposure at two sites, Miami, Fla., and the Panama Canal Zone. Twelve sets of lap-joint panels of clad 2024-T3 aluminum alloy bonded with 12 different adhesives, and one set of 177PH corrosion-resisting steel bonded with another adhesive, were exposed at these two sites. Panels were exposed while stressed in bending and while unstressed. Sets of panels were removed and tested periodically through 3 years of exposure. In addition, several short-term laboratory exposure conditions were used to determine whether such tests might provide information similar to the long-term exposure. In general, stressed specimens decreased in strength more than the unstressed specimens, Florida exposure caused a greater loss in strength than the Panama exposure, and exposure to the weather was more severe than laboratory exposure cycles.
Provenance: Lockheed Martin Missiles & Fire Control
Author(s): Olson, W. Z., Eickner, H. W., Lulling, R. M.
Corporate Author(s): Forest Products Laboratory
Laboratory: Directorate of Materials and Processes
Date of Publication: 1962-10
Pages: 32
Contract: DO 33(616)61-06
DoD Project: 7381
DoD Task: 738103
Identifier: AD0291663
Abstract:
An investigation was made of the relative durability of metal-bonding adhesives in exterior exposure at two sites, Miami, Fla., and the Panama Canal Zone. Twelve sets of lap-joint panels of clad 2024-T3 aluminum alloy bonded with 12 different adhesives, and one set of 177PH corrosion-resisting steel bonded with another adhesive, were exposed at these two sites. Panels were exposed while stressed in bending and while unstressed. Sets of panels were removed and tested periodically through 3 years of exposure. In addition, several short-term laboratory exposure conditions were used to determine whether such tests might provide information similar to the long-term exposure. In general, stressed specimens decreased in strength more than the unstressed specimens, Florida exposure caused a greater loss in strength than the Panama exposure, and exposure to the weather was more severe than laboratory exposure cycles.
Provenance: Lockheed Martin Missiles & Fire Control