Multidisciplinary Approach to Health Monitoring and Materials Damage Prognosis for Metallic Aerospace Systems.

摘要

This MURI program was aimed at advancing the ability to provide reliable life estimates for current and future aircraft systems. The goal was to advance the current states of structural health monitoring (SHM), damage diagnosis, and prognosis by the introduction of a hierarchical framework of sensor data, information management and models and algorithms that span and integrate scales from microstructure to structural level. The research was undertaken by an interdisciplinary research team with specific expertise in material, structural, mechanical, electrical and system engineering and with extensive experience in interdisciplinary collaborative research projects under DoD sponsorship. To ensure Air Force relevance, the team collaborated with AFRL and Boeing personnel to help identify crucial issues and structural hot spots. The project is organized into four tasks: (I) physics-based multiscale modeling; (2) models for in-situ interrogation and detection; (3) prognosis via state- awareness and life models; and (4) testing validation and application.