Non-destructive test inspection method for evaluating thermal degradation of bismaleimide resin
AssigneeUnited Technologies Corporation
InventorsJeffrey Denton, James H. Stewart, William Bogue
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Abstract
A non-destructive method for determining an amount of temperature exposure to a Bismaleimide Resin (BMI) matrix substrate, the method includes determining component data of a Bismaleimide Resin (BMI) matrix component via fourier transform infrared (FTIR) spectroscopy; correlating the component data to model data to determine a structural debit from temperature exposure; and bounding a structurally damaged area in response to the correlating.
Claims15
A non-destructive method for determining an amount of temperature exposure to a Bismaleimide Resin (BMI) matrix substrate, the method comprising:
- determining component data of a Bismaleimide Resin (BMI) matrix component via fourier transform infrared (FTIR) spectroscopy;
- correlating the component data to model data to determine a structural debit from temperature exposure;
- and
- bounding a structurally damaged area in response to the correlating.
A non-destructive method for determining an amount of temperature exposure to a Bismaleimide Resin (BMI) matrix substrate, the method comprising:
- locating a molecular spectroscopy analyzer within a visually indicated thermal stress area denoted by a discoloration on a substrate of a component;
- and
- moving the molecular spectroscopy analyzer outward toward an edge of the visually indicated thermal stress area to bound a structurally damaged area.
Dependencies are inferred from the claim text.