The concentration of microdefects near the crack fracture in polymers and composites based on them | Engineering Journal: Science and Innovation
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Certificate of Registration Media number Эл #ФС77-53688 of 17 April 2013. ISSN 2308-6033. DOI 10.18698/2308-6033
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Article

The concentration of microdefects near the crack fracture in polymers and composites based on them

Published: 14.10.2015

Authors: Valishin A.A.

Published in issue: #6(42)/2015

DOI: 10.18698/2308-6033-2015-6-1409

Category: Metallurgy and Science of Materials | Chapter: Powder Metallurgy and Composite Materials

The article continues and develops previous studies [1-3], which described the formation of zones offorced elasticity in front of the crack fracture in amorphous glassy polymers, the kinetics of destruction of weak nodes carrying the molecular skeleton formation and accumulation of local micro-defects, called holes, their elastic interaction. In this paper, it is shown that the interaction of holes leads to the fact that each hole is surrounded by "atmosphere" of smaller holes. It is also shown that the crack front is the source of its own elastic field. It is shown that the holes diffuse toward the front of the crack. Diffusive flux of holes was designed.


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