Destruction of PMMA after the Irradiation with High-Energy Electrons and a Mechanical Point Impact

被引：0
|
作者：
B. Kozhamkulov
K. Kadyrakunov
K. Jumadillayev
Zh. Primkulova
H. Altenbach
机构：
[1] Abai Kazakhstan National Pedagogical University,
[2] Al-Farabi Kazakhstan National University,undefined
[3] Otto von Guericke Magdeburg University,undefined
来源：
Mechanics of Composite Materials | 2021年 / 56卷
关键词：
plexiglass; electron irradiation; mechanical point impact; loss tangent; dielectric constant; microwave waveguide method; ultrahigh frequencies; fracture tree; shock wave; viscoelastic medium;
D O I：
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中图分类号：
学科分类号：
摘要：
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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页码：817 / 824
页数：7
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