Topology Optimization for Robust Damage Localization Using Aggregated FRFs Statistical Criteria

Abstract:

This work focuses on the development of a damage localization tool using Topology Optimization(TO) as a solver for the inverse problem of localization. This approach is based on thecorrelation of a local stiffness loss and the change in frequencies due to damages. We use the loss instiffness for updating undamaged numerical models towards similar models with embedded damages.This work is an extension of past work and aims at increasing the detectability of the method usingusing aggregated Frequency Response Functions (FRFs) statistical criteria. Good results have finally been achieved for the localization of close damages by the Topology Optimization method.

• Periodical: Applied Mechanics and Materials (Volume 629)
• Pages: 513-518
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.629.513
• Online since: October 2014
• Authors: Joseph Morlier*, Hanno Niemann, Amir Shahdin
• Keywords: Damage Localization, Modal Analysis, Structural Health Monitoring (SHM), Topology Optimization

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