Method and apparatus for evaluating structural weakness in polymer matrix composites

Wachter, E A; Fisher, W G

Title: Method and apparatus for evaluating structural weakness in polymer matrix composites

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Abstract

A method and apparatus for evaluating structural weaknesses in polymer matrix composites is described. An object to be studied is illuminated with laser radiation and fluorescence emanating therefrom is collected and filtered. The fluorescence is then imaged and the image is studied to determine fluorescence intensity over the surface of the object being studied and the wavelength of maximum fluorescent intensity. Such images provide a map of the structural integrity of the part being studied and weaknesses, particularly weaknesses created by exposure of the object to heat, are readily visible in the image. 6 figs.

Inventors:: Wachter, E A; Fisher, W G

Issue Date:: 1996-01-09

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

OSTI Identifier:: 170471

Patent Number(s):: 5483338

Application Number:: PAN: 8-248,802

Assignee:: Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States)

DOE Contract Number:: AC05-84OR21400

Resource Type:: Patent

Resource Relation:: Other Information: PBD: 9 Jan 1996

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; COMPOSITE MATERIALS; NONDESTRUCTIVE TESTING; MEASURING INSTRUMENTS; DESIGN; EQUIPMENT; RELIABILITY; TEMPERATURE DEPENDENCE

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                    Wachter, E A, and Fisher, W G. Method and apparatus for evaluating structural weakness in polymer matrix composites.  United States: N. p., 1996. 
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                    Wachter, E A, & Fisher, W G. Method and apparatus for evaluating structural weakness in polymer matrix composites.  United States.

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                    Wachter, E A, and Fisher, W G. Tue .  
        "Method and apparatus for evaluating structural weakness in polymer matrix composites".  United States.

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@article{osti_170471,

  title        = {Method and apparatus for evaluating structural weakness in polymer matrix composites},

  author       = {Wachter, E A and Fisher, W G},

  abstractNote = {A method and apparatus for evaluating structural weaknesses in polymer matrix composites is described. An object to be studied is illuminated with laser radiation and fluorescence emanating therefrom is collected and filtered. The fluorescence is then imaged and the image is studied to determine fluorescence intensity over the surface of the object being studied and the wavelength of maximum fluorescent intensity. Such images provide a map of the structural integrity of the part being studied and weaknesses, particularly weaknesses created by exposure of the object to heat, are readily visible in the image. 6 figs.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1996},

  month        = {1}

}

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