Title:          Geometric and Thickness Imperfection Data for 22 Polymer Cylinders as Fourier Coefficients
Authors:        Niklas Reuter (ORCID: 0009-0006-7416-0703), Benedikt Kriegesmann (ORCID: 0000-0001-5330-9886), Peter Graepler
Affiliation:    Hamburg University of Technology - Structural mechanics in lightweight design M-24
DOI:            https://doi.org/10.15480/882.13221

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Thank you for using our imperfection data. Please reference the named research paper from the metadatset if you publish your work using this data.

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The files provide data of the geometry and thickness of 22 polymer cylinders. The data provides the measured geometry and thickness, in the form of the actual radius for the geometry and the actual thickness on the cylinder as Fourier coefficients (FC). The data is stored as 20 FC in axial direction and 40 FC in circumferential direction (resulting in 20x40 FCs), as A and B coefficients. The geometry was measured with a 3D hand scanner and the thickness was calculated from distance between the outer and the inner surface of the cylinder. Further information are provided in the linked research paper.

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Geometry:
L = 100mm   (length)
R = 60mm    (radius)
t = 1mm     (thickness)

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Filename: C_0607_Geometry_A.txt
"C_0607":       name of the cylinder
"Geometry":     Imperfection type (Geometry or Thickness)
"A":            Coefficient (A or B)

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BucklingExperiment.txt:
This file contains the buckling loads of the experiments of such cylinders. The cylinders were loaded with an axial load which was introduced with an eccentricity. Further information are provided in the linked research paper.