A photo-optical and radiophysical study into the destruction process of the internal structure of plexiglass (PMMA) after its exposure to an ionizing electron irradiation and a subsequent external mechanical point impact was carried out. Enlarged macrophotography of the picture of the radiation-mechanical internal destruction of plexiglass was performed at different shooting modes. An analysis and explanation of physics of the formation mechanism of the tree-like branched fractal structure of PMMA destruction is carried out based on the dynamics of impulse compression and a spherical single wave arising at the impact action. The radiophysical parameters of PMMA with radiation damage were measured using the waveguide method in the microwave range.
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Translated from Mekhanika Kompozitnykh Materialov, Vol. 56, No. 6, pp. 1179-1188, November-December, 2020.
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Kozhamkulov, B., Kadyrakunov, K., Jumadillayev, K. et al. Destruction of PMMA after the Irradiation with High-Energy Electrons and a Mechanical Point Impact. Mech Compos Mater 56, 817–824 (2021). https://doi.org/10.1007/s11029-021-09926-5
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DOI: https://doi.org/10.1007/s11029-021-09926-5