Method to monitor structural damage occurrence and progression in monolithic composite structures using fibre Bragg grating sensors
    1.
    发明申请
    Method to monitor structural damage occurrence and progression in monolithic composite structures using fibre Bragg grating sensors 有权
    使用光纤布拉格光栅传感器监测单片复合结构中结构损坏发生和进展的方法

    公开(公告)号:US20060140532A1

    公开(公告)日:2006-06-29

    申请号:US11296855

    申请日:2005-12-07

    IPC分类号: G02B6/00 G02B6/34

    CPC分类号: G01M11/085 G01M11/086

    摘要: A method of monitoring structural damage in a composite structure manufactured by co-curing, co-bonding or secondary bonding of several sub-components (7, 8), using fibre optic Bragg grating sensors attached or embedded to or between (in the bonding line) said sub-components, comprising a first step of measuring the wavelength spectra (31, 33, 40) of said Bragg grating sensors at the end of the manufacturing of the part, and in a known load condition, considered as reference and a second step of identifying the occurrence of a failure of the structure and the progress of said failure detecting the release of the residual stresses/strains stored during the curing process by measuring changes (31 to 32, 33 to 34, 40 to 41) with respect to said reference wavelength spectra.

    摘要翻译: 通过使用附接或嵌入或嵌入(在接合线中(在接合线中)之间的光纤布拉格光栅传感器来监测复合结构中的结构损伤的方法,所述复合结构通过共同固化,共连接或二次接合几个子部件(7,8) )所述子部件,包括测量部件制造结束时所述布拉格光栅传感器的波长光谱(31,33,40)的第一步骤,以及被认为是参考的已知负载条件和第二步骤 通过测量变化(31至32,33至34,40至41),确定结构故障的发生和所述故障的进展的步骤,其检测在固化过程中存储的残余应力/应变的释放 所述参考波长光谱。

    Composite structure with optical fiber embedded in one of its surface layers and a process for its connection and repair
    2.
    发明申请
    Composite structure with optical fiber embedded in one of its surface layers and a process for its connection and repair 有权
    具有嵌入其表面层之一的光纤的复合结构及其连接和修复的过程

    公开(公告)号:US20070122099A1

    公开(公告)日:2007-05-31

    申请号:US11441273

    申请日:2006-05-25

    IPC分类号: G02B6/00

    摘要: The invention relates to a composite structure (11) formed by a plurality of layers (13, 15, 17, 19, 21, 23) including an optical fiber (25) for structural monitoring purposes which is at least partly embedded in a surface layer (13) of said structure (11), and insulation means of the optical fiber (25) areas susceptible to repair with respect to the surface layer (13) in which they are integrated, particularly a protective cover (27) and top and bottom separating films (31, 33), and a process of repairing said areas comprising the following steps: removing the protective cover (27) and the top separating film (31), extracting the area, repairing the optical fiber, relocating the area and providing a new protective cover (27).

    摘要翻译: 本发明涉及由多个层(13,15,17,19,21,23)形成的复合结构(11),其包括用于结构监视目的的光纤(25),所述光纤至少部分地嵌入表面层 (11)的所述表面层(13),并且所述光纤(25)的绝缘装置相对于所述结构(11)的表面层(13)易于修复,特别是保护盖(27)以及顶部和底部 分离膜(31,33)以及修复所述区域的过程包括以下步骤:去除保护盖(27)和顶部分离膜(31),提取区域,修复光纤,重新定位该区域并提供 一个新的保护罩(27)。

    Composite structure with embedded optical fiber and a process for its repair
    3.
    发明申请
    Composite structure with embedded optical fiber and a process for its repair 有权
    具有嵌入式光纤的复合结构及其修复工艺

    公开(公告)号:US20070122098A1

    公开(公告)日:2007-05-31

    申请号:US11441272

    申请日:2006-05-25

    IPC分类号: G02B6/00

    摘要: The invention relates to a composite structure (11) formed by a plurality of layers (13, 15, 17, 19, 21, 23) including an optical fiber (25) for structural monitoring purposes which is at least partly embedded in said structure (11), incorporating a protective cover (27) in those areas of its embedded part susceptible to needing repair, and to a process for repairing said embedded optical fiber comprising the following steps: identifying the optical fiber area in need of repair, removing material until reaching the cover (27), extracting said area, removing the protective cover (27), repairing the optical fiber (25), relocating the repaired area in the structure and returning the removed material.

    摘要翻译: 本发明涉及由多个层(13,15,17,19,21,23)形成的复合结构(11),其包括用于结构监测目的的光纤(25),其至少部分地嵌入所述结构( 11),在其易于需要修理的嵌入部分的那些区域中并入保护盖(27),以及修复所述嵌入式光纤的工艺,包括以下步骤:识别需要修理的光纤区域,去除材料直到 到达盖(27),提取所述区域,去除保护盖(27),修复光纤(25),将修复的区域重新定位在结构中并返回去除的材料。