Invention Grant
- Patent Title: Bond evaluation using piezochromic fluorescence
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Application No.: US13748278Application Date: 2013-01-23
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Publication No.: US09612190B2Publication Date: 2017-04-04
- Inventor: John R. Hull , Keith J. Davis , Richard H. Bossi
- Applicant: The Boeing Company
- Applicant Address: US IL Chicago
- Assignee: The Boeing Company
- Current Assignee: The Boeing Company
- Current Assignee Address: US IL Chicago
- Agent Felix L. Fischer
- Main IPC: G01N19/04
- IPC: G01N19/04 ; G01N19/00 ; G01N21/62 ; G01N21/00 ; G01L1/24

Abstract:
A composite bonded structure with integral stress sensing and bond evaluation system incorporates a bonded structure having a first component, a second component and a layer of adhesive bonding the first and second components. The layer of adhesive includes multiple embedded fluorescing particles which emit a first spectral intensity in an unstressed condition and a second spectral intensity in a stressed condition. A bond evaluation apparatus is then employed for measuring spectral intensity.
Public/Granted literature
- US20140202239A1 BOND EVALUATION USING PIEZOCHROMIC FLUORESCENCE Public/Granted day:2014-07-24
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