LOAD PAD DEVELOPMENT FOR RESEARCH AIRCRAFT WING STRAIN GAGE LOADS CALIBRATION TEST

摘要

An elastomeric tension-compression load pad material was selected in preparation for ground loads testing of a research aircraft. Five rubber materials candidates were load tested for ultimate tensile strength, creep strength, low-cycle fatigue strength, and compressive stiffness. Additionally, two bonding agents candidates were tested for strength properties, ease of application, removal, and reliability. Material testing was completed at NASA Dryden Flight Research Center to select a load pad material and a bonding agent capable of providing the elastomer interface for the aircraft while enduring both tensile and compressive applied loads.