公开(公告)号：US20060140532A1

公开(公告)日：2006-06-29

申请号：US11296855

申请日：2005-12-07

Applicant: Jose Menendez Martin ,  Alfredo Guemes Gordo

Inventor： Jose Menendez Martin ,  Alfredo Guemes Gordo

IPC: G02B6/00 ,  G02B6/34

CPC classification number: G01M11/085 ,  G01M11/086

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US07283693B2

公开(公告)日：2007-10-16

申请号：US11296855

申请日：2005-12-07

Applicant: Jose Manuel Menendez Martin ,  Alfredo Guemes Gordo

Inventor： Jose Manuel Menendez Martin ,  Alfredo Guemes Gordo

IPC: G02B6/34

CPC classification number: G01M11/085 ,  G01M11/086

Abstract: 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.

Abstract translation: 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。