Accession Number : ADA305426

Title :   Lightning Protection Guidelines and Test Data for Adhesively Bonded Aircraft Structures.

Descriptive Note : Contractor rept.,

Corporate Author : LIGHTNING TECHNOLOGIES INC PITTSFIELD MA

Personal Author(s) : Pryzby, J. E. ; Plumer, J. A.

PDF Url : ADA305426

Report Date : JAN 1984

Pagination or Media Count : 176

Abstract : The highly competitive marketplace and increasing cost of energy has motivated manufacturers of general aviation aircraft to utilize composite materials and metal-to-metal bonding in place of conventional fasteners and rivets to reduce weight, obtain smoother outside surfaces and reduce drag. The purpose of this program was protection of these new structures from hazardous lightning effects. The program began with a survey of advance-technology materials and fabrication methods under consideration for future designs. Sub-element specimens were subjected to simulated lightning voltages and currents. Measurements of bond line voltages, electrical sparking, and mechanical strength degradation were made to comprise a data base of electrical properties for new technology materials and basic structural configurations. The second phase of the program involved tests upon full scale wing structures which contained integral fuel tanks and which were representative of examples of new technology structures and fuel systems. The purpose of these tests was to provide a comparison between full scale structural measurements and those obtained from the 'sub-element' specimens.

Descriptors :   *LIGHTNING PROTECTION, *ADHESIVE BONDING, *GENERAL AVIATION AIRCRAFT, DATA BASES, SIMULATION, FUEL SYSTEMS, MEASUREMENT, EXPERIMENTAL DATA, INTEGRATED SYSTEMS, DEGRADATION, HAZARDS, STRUCTURAL PROPERTIES, COMPOSITE MATERIALS, ENERGY, FABRICATION, VOLTAGE, ELECTRICAL PROPERTIES, STRENGTH(MECHANICS), COSTS, LIGHTNING, CONFIGURATIONS, RIVETS, AIRFRAMES, BONDING, FUEL TANKS, INSTRUCTIONS, DRAG, WINGS, FASTENINGS, METAL METAL BONDS.

Subject Categories : Adhesives, Seals and Binders
      Safety Engineering
      Commercial and General Aviation

Distribution Statement : APPROVED FOR PUBLIC RELEASE