Damage severity estimate for sandwich panels with lattice core using substructure potential energy

Hui Fang

doi:10.1117/12.812931

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8 April 2009 Damage severity estimate for sandwich panels with lattice core using substructure potential energy

Hui Fang

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Proceedings Volume 7294, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2009; 72940I (2009) https://doi.org/10.1117/12.812931
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2009, San Diego, California, United States

Abstract

This paper proposes a new method using substructure potential energy, which is capable of accurately estimating the damage magnitude of multiple members, and particularly advantageous for sandwich panels with lattice cores. While other existing damage severity estimation methods require the information of several modes of the whole structure, the new method utilizes only a small number of measurement locations for sandwich structure. The performance of the proposed method is compared with existing damage detection methods using a set of numerical simulations that are demonstrated for a sandwich panel based on synthetic data generated from finite element models.

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Hui Fang "Damage severity estimate for sandwich panels with lattice core using substructure potential energy", Proc. SPIE 7294, Nondestructive Characterization for Composite Materials, Aerospace Engineering, Civil Infrastructure, and Homeland Security 2009, 72940I (8 April 2009); https://doi.org/10.1117/12.812931

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