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Publikācija: Comparison among Different Methods Applicable for Vibration Correlation Technique of Cylindrical Composite Shells

Publication Type Conference paper
Funding for basic activity Fundamental and applied research projects
Defending: ,
Publication language English (en)
Title in original language Comparison among Different Methods Applicable for Vibration Correlation Technique of Cylindrical Composite Shells
Field of research 2. Engineering and technology
Sub-field of research 2.1. Construction and transportation engineering
Research platform None
RTU scientific equipment used for research
  • Universal testing machine Zwick 100
  • Laser-vibrometer Polytec PSV-400
  • Touchless 3D scanning laser vibrometer
Authors Eduards Skuķis
Kaspars Kalniņš
Gints Jēkabsons
Olģerts Ozoliņš
Edgars Labans
Keywords Vibration Correlation Technique
Abstract Vibration Correlation Technique (VCT), a non-destructive method for axial buckling load determination, has shown major advantages for a range of industrial applications. VCT allows to correlate the ultimate load or instability point with rapid decrement of self-frequency response. Nevertheless this technique is still under development for thin-walled shells in particular. In this paper, the authors discuss experimentally verified methods to extend vibration correlation approach in order to predict an actual ultimate load level of unstiffened cylindrical shells loaded in axial compression. Validation study includes manufactured carbon fibre cylinders that were laser-scanned during repeated loading up to the instability point.
Reference Skuķis, E., Kalniņš, K., Jēkabsons, G., Ozoliņš, O., Labans, E. Comparison among Different Methods Applicable for Vibration Correlation Technique of Cylindrical Composite Shells. In: Materials Science and Applied Chemistry 2019, Latvia, Rīga, 24-24 October, 2019. Rīga: Rīgas Tehniskā universitāte, 2019, pp.98-98.
Full-text
ID 30876