Bolt Shear Force Sensor
Abstract
A bolt shear force sensor for in-service monitoring is provided in which the sensor includes a deformable ring with channel-like cross-sections and a wire egress hole. The ring surrounds a bolt or fastener to be tested. The channel-like cross sections face exterior to a center of the ring. Strain sensing elements are mounted within the channel cross-sections as an outer circumference of the ring. The sensing elements capture hoop strain from surrounding plates of the operating system which holds the fastener. A signal conditioner operationally connected via wire conductors is used to convert strain sensing signals from the sensing elements to strain output. The strain outputs are then used in conjunction with a calibration curve of shear force versus strain to determine the magnitudes and directions of the resultant shear forces.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 12, 2015
- Accession Number
- ADA626737
Entities
People
- Paul V. Cavallaro
Organizations
- Naval Undersea Warfare Center