Detection of Precursors to Damage in Aerostructures

Ed Mansour Habtour*, Tiedo Tinga, Thiago Dragman

*Corresponding author for this work

    Research output: Contribution to conferencePaper

    Abstract

    The structural dynamic behavior of 3D-printed and conventional aluminum alloys are studied experimentally. Heat treated Scalmalloy and Al 7075 T-6 beam-like structures are fabricated using additive and extrusion manufacturing, respectively. The beams are exposed to vibration fatigue. Linear and nonlinear dynamic characterizations are performed to extract the stiffness and damping properties for pristine and fatigued structures. Additionally, the study includes optical imaging, Electron Backscatter Diffraction (EBSD), and Atomic Force Microscopy (AFM) to obtain the alloys’ materials properties. While the preliminary results show that Scalmalloy fatigue life is approximately 3-4 times lower than Al 7075 T-6, failure in Scalmalloy appears to be more graceful and predictable than that for aluminum.
    Original languageEnglish
    Publication statusPublished - 9 Sep 2019
    EventASME 2019 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2019 - Omni Louisville, Louisville, United States
    Duration: 9 Sep 201911 Sep 2019
    https://event.asme.org/SMASIS

    Conference

    ConferenceASME 2019 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2019
    Abbreviated titleSMASIS2019
    CountryUnited States
    CityLouisville
    Period9/09/1911/09/19
    Internet address

    Keywords

    • Damage Precursors
    • Nonlinear dynamics
    • Structural health monitoring
    • Structural dynamics
    • fatigure
    • Flexible structures

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  • Cite this

    Habtour, E. M., Tinga, T., & Dragman, T. (2019). Detection of Precursors to Damage in Aerostructures. Paper presented at ASME 2019 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2019, Louisville, United States.