The Boeing Company

John E Shrader

Richard Henry Bossi

James M Nelson

Alan B Zimmerschied

James F Kenney

A method and system for measuring a strength of a test specimen are provided. The method includes the steps of selecting a tensile load of interest for the test specimen, and bulk heating the test specimen at a localized region such that the test specimen is placed under the tensile load of interest. The method further provides for determining whether the tensile load of interest has caused a failure at the localized region. Bulk heating the test specimen provides a non-destructive evaluation technique that is unachievable through conventional approaches.

Non-destructive strength measurement by prompt bulk heating method

A remote sensing device comprising light generating means positioned in the vicinity of an event being measured and means for conducting the generated light to a remote location. The light generating means advantageously comprises an optical emission mechanical transducer or bioluminescent device, or current generating means coupled with a light emitting diode, semiconductor laser or filament bulb. Also disclosed is a method according to the invention.

Method and apparatus for remote sensing of mechanical force

An optical impact fuze employing a transparent nose of a target seeking missile as a light transmission medium which deforms upon impact to reduce optical transmission and initiate a fuzing signal. Alternatively, one or more optically transmissive filaments can be positioned at or near a predetermined target impact point on a vehicle so that a fuzing signal is initiated upon the detection of an abrupt decrease in light transmitted by the filament resulting from target contact.

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Mercer Island, WA, United States of America

John E Shrader