Internal large field of view observations with optical microscope of fatigue damage in composite materials during bending loading (Q6702324)

Stitched microscope pictures ... References to this data-set should include a reference to one of the following two papers in where the data has been used. Mortensen U., Andersen, T.L., Mikkelsen, L.P., Observation of Edge Effect in Flexural Fatigue Test of Composites using Large Field of View Microscopy, Journal of Composite Materials. https://doi.org/10.1177/0021998320902233, 2020 Mortensen, U.A., Mikkelsen, L.P., Andersen, T.L. Observation of the interaction between transverse cracking and fibre breaks in uni-directional non-crimp fabric composites subjected to cyclic bending fatigue damage mechanism, submitted, Feb. 2022. The naming of the pictures are build up by the follwing elements EL_05 is the plate ID, J01-J09 is the sample ID where the following load level are defined: J01: 1 000 cycles J02: 2 500 cycles J03: 5 000 cycles J04: 10 000 cycles J05: 50 000 cycles J06: 100 000 cycles J07: 250 000 cycles J08: 500 000 cycles J09: 1 000 000 cycles S01-04: is the 4 surfaces inside the sample as shown in the picture saved in: xxx. The picture show the sample where the red planes indicate the polished surfaces where the microscopy pictures from the internal surfaces are taken. The pictures are oriented with the compression side upward and the tensile side downward similar to the orientation of the actual 4-point fatigue bending test sample.