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- noun Plural form of
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Engineers at Langley are using their research capability by conducting a number of tests on PICA and AVCOAT to investigate the thermal and structural behavior of the ablators attached to a honeycomb backing structure.
Tests include flexural tests, which measure the elasticity and failure mode of the specimens; modal tests, which are frequency response tests that verify the integrity of the design; vibration and acoustic tests, which simulate Orion launch conditions the thermal protection system will endure; transient thermal tests, which explore the range of temperatures the ablators could experience; and environmental chamber tests, which study the materials in the extreme temperatures of space.