Development of a Damage Quantification Model for Composite Skin-Stiffener Structures

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Abstract

The development of a model-based approach for a damage severity assessment applied on a complex composite skin structure with stiffeners is presented in this paper. Earlier investigations on composite structures with stiffeners revealed that a vibration based structural health monitoring approach, employing the Modal Strain Energy Damage Index (MSE-DI) algorithm can detect and localise delaminations. The next step, performed in the presented part of the research, is to assess the severity of the damage. It is shown that combining results from a fre-quency based analysis and from a modal strain energy based analysis can enhance the quantifica-tion of the severity estimation. This conclusion was drawn by analysing the effect of small masses that were added at a specific location in to mimic a damage, but maintain reversibility of the dam-age. The use of a numerical model to create a virtual test space was found to be valuable for the interpretation of experimental data
Original languageEnglish
Title of host publication5th ECCOMAS Thematic Conference on Smart Structures and Materials SMART'11
EditorsC Boller, H Janocha
Place of PublicationSaarbrucken
PublisherUniversity of Saarland
Pages197-212
Publication statusPublished - 6 Jul 2011
Event5th ECCOMAS Thematic Conference on Smart Structures and Materials, SMART 2011 - Saarland University Campus, Saarbrucken, Germany
Duration: 6 Jul 20118 Jul 2011
Conference number: 5

Conference

Conference5th ECCOMAS Thematic Conference on Smart Structures and Materials, SMART 2011
Abbreviated titleSMART
CountryGermany
CitySaarbrucken
Period6/07/118/07/11

Keywords

  • METIS-274789
  • IR-77686
  • Onderzoek van algemene industriele aardMechanical engineering and technology

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  • Cite this

    Loendersloot, R., Ooijevaar, T. H., de Boer, A., & Akkerman, R. (2011). Development of a Damage Quantification Model for Composite Skin-Stiffener Structures. In C. Boller, & H. Janocha (Eds.), 5th ECCOMAS Thematic Conference on Smart Structures and Materials SMART'11 (pp. 197-212). Saarbrucken: University of Saarland.