System and Method for Progressive Damage Monitoring and Failure Event Prediction in a Composite Structure

摘要

A system for monitoring damage progression in a composite structure includes a load sensor, acoustic emission sensors, a camera, and a monitoring device. The load sensor measures an applied load to the structure. The sensors measure acoustic emission data indicative of possible damage to the structure. The camera captures image data of the structure in a designated portion of the electromagnetic spectrum. The monitoring device executes a method by which the acoustic emission data is synchronously collected with the image data and the applied load. The device automatically maps the acoustic emission data onto the image data to detect an area of damage progression in the composite structure. A failure event in the detected area of damage progression may be predicted using the mapped data, and a control action may be executed in response to the predicted failure event.

主权项

1. A system for monitoring damage progression in a composite structure subjected to an applied load, the system comprising:
a load sensor operable for measuring the applied load and outputting a load profile signal indicative of the measured applied load; an array of acoustic emission sensors operable for measuring acoustic emission data indicative of possible damage to the composite structure; a camera operable for capturing image data of the composite structure in a designated portion of the electromagnetic spectrum; and a monitoring device in communication with the load sensor, the acoustic emission sensors, and the camera, wherein the monitoring device is configured to synchronously measure the applied load via the load sensor, collect the acoustic emission data via the acoustic emission sensors, and collect the image data via the camera, and to automatically map the collected acoustic emission data onto the collected image data to thereby detect an area of damage progression in the composite structure.