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US 5,309,533 AGranted
Structure with intrinsic damage control, manufacturing processes and method of use
AssigneeThomson-CSF
InventorsPhilippe Bonniau, Bernard Estang, Bernard Perrier, Jean Chazelas, Jerome Lecuellet
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Abstract
A structure which includes a composite material formed of a plurality sheets forming plies. A casing is formed between two of the plurality of sheets forming the composite material, the casing having an internal diameter. Further, an optical fiber is located within the casing and has an external diameter which is less than the internal diameter of the casing, the optical fiber also having a slow axis and a fast axis of propagation.
Claims13
A structure comprising:
- a composite material comprising a plurality of sheets forming plies;
- a casing formed between two of the plurality of sheets forming the composite material, the casing having an internal diameter;
- an optical fiber located within the casing and having an external diameter which is less than the internal diameter of the casing, the optical fiber having a slow axis and a fast axis of propagation, wherein the optical fiber comprises:
- an optical core;
- a sheath surrounding the optical core and comprising at least two longitudinal channels positioned symmetrically with respect to the optical core.
2 more elements
A structure comprising:
- a composite material comprising a plurality of sheets forming plies;
- a casing formed between two of the plurality of sheets forming the composite material, the casing having an internal diameter;
- an optical fiber located within the casing and having an external diameter which is less than the internal diameter of the casing to thereby form a gap between the optical fiber and casing, the optical fiber having a slow axis and a fast axis of propagation.
Dependencies are inferred from the claim text.