To provide systems and methods for non-destructive inspection of composite structures based on thermal expansion differences.SOLUTION: An example system for in-situ inspection of a composite structure includes a surface-strain imaging apparatus and a controller. The surface-strain imaging apparatus is configured to image an area of an outer surface of the composite structure while a temperature of the composite structure increases to be in thermal equilibrium with a surrounding environment and a temperature gradient exists within the composite structure. The controller includes a processor and a memory, and is configured to detect, using data received from the surface-strain imaging apparatus, an out-of-plane displacement of the outer surface in the area caused by the temperature gradient. The controller is also configured to determine that the out-of-plane displacement satisfies a threshold condition and, based on determining that the out-of-plane displacement satisfies the threshold condition, flag the area of the outer surface for further inspection.SELECTED DRAWING: Figure 1

    【課題】熱膨張差に基づく複合構造物の非破壊検査のためのシステムおよび方法を提供する。【解決手段】複合構造物の現場検査のための例示的なシステムは、表面ひずみ撮像装置およびコントローラを含む。表面ひずみ撮像装置は、複合構造物の温度が周囲環境と熱平衡になるように温まり、複合構造物内に温度勾配が存在する間に、複合構造物の外面の領域を撮像するように構成される。コントローラは、プロセッサとメモリを含み、表面ひずみ撮像装置から受信したデータを使用して、温度勾配によって引き起こされた領域の外面の面外変位を検出するように構成される。コントローラはまた、面外変位がしきい値条件を満たすと判定するように構成され、面外変位がしきい値条件を満たすと判定することに基づいて、さらなる検査のために外面の領域にフラグを立てる。【選択図】図1


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    Titel :

    COMPOSITE LAMINATE DAMAGE DETECTION METHOD USING IN-SITU THERMAL GRADIENT AND EXPANSION DIFFERENCES ACROSS DAMAGE


    Weitere Titelangaben:

    現場での熱勾配と損傷全体の膨張差を使用した複合積層損傷の検出方法


    Beteiligte:

    Erscheinungsdatum :

    02.09.2021


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    G01B MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS , Messen der Länge, der Dicke oder ähnlicher linearer Abmessungen / B64F GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT , Boden- oder Flugzeugträgerdeckeinrichtungen besonders ausgebildet für die Verwendung in Verbindung mit Luftfahrzeugen / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES



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