The failure mechanisms of biodegradable polymer composites in the conditions of impact loading
- Authors: Dolbin I.I.1, Kozlov G.V.1, Kudrov Y.V.2, Davydova V.V.2, Dolbin I.V.3
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Affiliations:
- Russian State University of Tourism and Service
- State University of Tourism and Service
- Kabardino-Balkarian State University named after Kh.M. Berbekov
- Issue: Vol 15, No 1 (2025)
- Pages: 10-15
- Section: Physics
- URL: https://journals.rcsi.science/2221-7789/article/view/358101
- ID: 358101
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Abstract
The failure process of two biodegradable composites on the base of polylactic acid, reinforced with two types of different natural fibers was studied within the framework of fractal analysis. The fractal di- mension of their structure, controlling failure type and as consequence, the value of energy, adsorbed in condi- tions of impact loading, is the main factor, defining sharp enhancement of impact toughness of these biocompo- sites. The condition of transition from quasibrittle to quasiductile failure serves achievement by fractal dimen- sion of structure of biocomposite the value of 2.7. Interfacial interactions are imposed restrictions on adsorbed in process of impact loading mechanical energy, reducing impact toughness. At large dimensions of biocompo- sites structure (>2.87) in them the effect of superplasticity, i.e. sample is deformed, but not failured in the con- ditions of impact tests.
About the authors
Ilya I. Dolbin
Russian State University of Tourism and Service
Author for correspondence.
Email: i_dolbin@mail.ru
Higher School of Service, 2nd year student Russian Federation
Gennady V. Kozlov
Russian State University of Tourism and Service
Email: i_dolbin@mail.ru
Doctor of physico-mathematical sciences, professor, physicist
Yuri V. Kudrov
State University of Tourism and Service
Email: i_dolbin@mail.ru
Senior Lecturer
Vladlena V. Davydova
State University of Tourism and Service
Email: i_dolbin@mail.ru
Senior Lecturer
Igor V. Dolbin
Kabardino-Balkarian State University named after Kh.M. Berbekov
Email: i_dolbin@mail.ru
Senior Researcher at the Center for Progressive Materials and Additive Technologies
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