Effect of damage on the vibration modal of a novel three-dimensional and four-directional braided composite T-beam

Xiaoyuan Pei, Li Chen, Jialu Li, Youhong Tang, Kuifu Chen

    Research output: Contribution to journalArticlepeer-review

    30 Citations (Scopus)

    Abstract

    The effect of damage on the modal properties of a three-dimensional (3Dim) and four-directional (4Dir) braided composite T-beam was investigated by means of modal experiments and finite element analysis (FEA). The experimental tests on these damaged T-beams showed alteration of the vibration mode response. The damage obviously changed the mode shape curvatures. The influence of the damage upon the modal shape curvatures of the T-beam could be used to detect and localize the damage. Finite element modeling (FEM) of the damaged T-beam revealed that the damage affected the natural frequency of the T-beam but did not affect its modal shape.

    Original languageEnglish
    Pages (from-to)108-119
    Number of pages12
    JournalCOMPOSITES PART B-ENGINEERING
    Volume86
    DOIs
    Publication statusPublished - 2016

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