NUCLEAR QUADRUPOLE RESONANCE SYSTEM AND METHOD FOR STRUCTURAL HEALTH MONITORING
    2.
    发明申请
    NUCLEAR QUADRUPOLE RESONANCE SYSTEM AND METHOD FOR STRUCTURAL HEALTH MONITORING 有权
    核四重谐振系统及结构健康监测方法

    公开(公告)号:US20120025827A1

    公开(公告)日:2012-02-02

    申请号:US13174488

    申请日:2011-06-30

    CPC classification number: G01R33/441

    Abstract: Structural health monitoring using nuclear quadrupole resonance is disclosed. For example, in one embodiment, a method of monitoring stress is provided. The method includes scanning a composite using an NQR spectrometer, the composite having a polymer matrix and a microcrystalline material disposed in the matrix. The microcrystalline material includes molecules having nuclei with respective nuclear quadrupole moments. The method also includes determining microscopic strain distribution indices of the composite from the NQR scans to quantify stress and identify precursors to failure in the composite.

    Abstract translation: 公开了使用核四极共振的结构健康监测。 例如,在一个实施例中,提供了监视应力的方法。 该方法包括使用NQR光谱仪扫描复合材料,所述复合材料具有聚合物基质和设置在基质中的微晶材料。 微晶材料包括具有各自具有核四极矩的核的分子。 该方法还包括从NQR扫描确定复合材料的微观应变分布指数以量化应力并鉴定复合材料中的失效前体。

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