VAFW cylinders 2020, S1, S2, S4, S8, stitched imperfections

The files contain geometric imperfection data of variable-angle filament-wound (VAFW) cylinders.

The data is generated by the stitching algorithm described in the manuscript:

Castro, S. G. P., Almeida, J. H. S., Jr., St-Pierre, L., & Wang, Z. "Measuring geometric imperfections of variable-angle filament-wound cylinders with a simple digital image correlation setup". Composite Structures, 2021. 10.1016/j.compstruct.2021.114497

In that manuscript, the naming convention translates as follows.

Cylinder name in the dataset <--> cylinder name in the manuscript:

• S1 <--> MA
• S2 <--> CA
• S4 <--> VAFW4
• S8 <--> VAFW8

The geometry for all cylinders is:

• Radius: 68 mm
• Height: 300 mm

The nominal mass of each cylinder is:

• S1: 148 g
• S2: 146 g
• S4: 149 g
• S8: 165 g

The mass of each cylinder can obtained with the measured thickness, assuming a mass density of 1600 kg/m^3:

• S1-1-measurement-1 , mass [g], 148.04908367397067
• S1-1-measurement-2 , mass [g], 148.06366872269544
• S1-1-measurement-3 , mass [g], 148.07853475262579
• S1-2-measurement-1 , mass [g], 148.12795252244214
• S1-2-measurement-2 , mass [g], 148.18336161880055
• S1-2-measurement-3 , mass [g], 148.13671728820555
• S1-3-measurement-1 , mass [g], 148.02889844076526
• S1-3-measurement-2 , mass [g], 148.07346957933277
• S1-3-measurement-3 , mass [g], 148.05218142229177
• S2-1-measurement-1 , mass [g], 146.03702890361745
• S2-1-measurement-2 , mass [g], 146.0667964152358
• S2-1-measurement-3 , mass [g], 146.062382271943
• S2-2-measurement-1 , mass [g], 145.96773915505852
• S2-2-measurement-2 , mass [g], 145.98095334963728
• S2-2-measurement-3 , mass [g], 145.96911295676836
• S2-3-measurement-1 , mass [g], 145.96503867661744
• S2-3-measurement-2 , mass [g], 145.97143963499434
• S2-3-measurement-3 , mass [g], 145.96604504264243
• S4-1-measurement-1 , mass [g], 149.01060556798063
• S4-1-measurement-2 , mass [g], 149.02315109376266
• S4-1-measurement-3 , mass [g], 149.02602382977014
• S4-2-measurement-1 , mass [g], 149.1244878768776
• S4-2-measurement-2 , mass [g], 149.16120601624365
• S4-2-measurement-3 , mass [g], 149.0956174217226
• S4-3-measurement-1 , mass [g], 149.07358988366047
• S4-3-measurement-2 , mass [g], 149.07591392086718
• S4-3-measurement-3 , mass [g], 149.01711325199713
• S8-1-measurement-1 , mass [g], 164.7732786126909
• S8-1-measurement-2 , mass [g], 164.7708215699278
• S8-1-measurement-3 , mass [g], 164.77019780435964
• S8-2-measurement-1 , mass [g], 164.67137223901923
• S8-2-measurement-2 , mass [g], 164.6618011844223
• S8-2-measurement-3 , mass [g], 164.65422000625884
• S8-3-measurement-1 , mass [g], 164.70843953800022
• S8-3-measurement-2 , mass [g], 164.70712745911177
• S8-3-measurement-3 , mass [g], 164.69301645319925

All coordinates (x,y,z) and the imperfection amplitude (imp) are in millimeters.

Files: XXX_msi.txt contain imperfection in rectangular coordinates, represented by a cloud of points and their respective x,y,z position.

Files: XXX_msi_theta_z_imp.txt contain imperfection in polar coordinates: theta, z, imperfection amplitude.

These file formats are ready to be used with the DESICOS plug-in for Abaqus.