PSI - Issue 6

V.A. Morozov et al. / Procedia Structural Integrity 6 (2017) 154–160 Morozov et al. / Structural Integrity Procedia 00 (2017) 000–000

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From the analysis of microstructure the following conclusions can be drawn:

• Fracture behavior for PMMA changes with the spread of cracks from the loading surface to the free surface - the mirror region, areas of increased roughness and parabolic region respectively. With further crack propagation of these basic types of breaks periodically alternate. • On the fracture surface of fluoroplast are present mirror field and an area of increased roughness, and the parabolic is virtually absent. This means that when fluoroplast is destroyed, less energy is consumed.

Acknowledgements

This work was supported by Russian Science Foundation [grant number 17-11-01053]. The authors are grateful to the pupil of the Lyceum No 101 Nikolaeva Elena for help in processing the results of structural studies.

References

Atroshenko S.A., Krivosheev S.I., Petrov A.Yu., 2002. Crack propagation upon dynamic failure of polymethylmethacrylate. Technical Physics, 47, 2, 194-199 Imbert Jose, Rahmaan Taamjced and Worswick Michael, 2015. Interrupted pulse electromagnetic expanding ring test for sheet metal. EPJ Web of Conferences 94, 01048 Morozov V.A., Lukin A.A., Atroshenko S.A., Gribanov D.A., Petrov Yu.V., 2016.. Deformation and fracture of metal ring samples under the explosion of conductors. 21 st Europian Conference on Fracture, ECF 21, 20-24 June 2016, Catania, Italy, Procedia Structural Integrity 2, 1002-1006.