Regularities of fracture pattern formation in alumina ceramics subjected to dynamic indentation / Tolmacheva Lyapunova E., Davydova M., Chudinov V., Uvarov S., Naimark O., Zaytsev D., Panfilov P. // Frattura ed Integrita Strutturale. - 2017. - V. 11, l. 41. - P. 552-561.

ISSN:
19718993
Type:
Article
Abstract:
In this paper the process of dynamic indentation, causing deformation and fracture of alumina ceramics, is investigated. The dynamic indentation experiments were carried out on the original setup based on the split Hopkinson bar technique. The regularities of structure evolution caused by indenter penetration are studied using the computer tomography data of the samples subjected to different loads. The investigation revealed the existence of comminuted area in the vicinity of the indenter and the formation of multiple cracks in the zone lying below. It was found that the higher is the applied indentation load, the denser is the crack pattern and larger are the cracks. A similarity of such a mechanical behavior between the examined material and dentin taken as a biocomposite is discussed. © 2017, Gruppo Italiano Frattura. All rights reserved.
Author keywords:
Alumina; Computer tomography; Dynamic indentation; Fracture
Index keywords:
нет данных
DOI:
10.3221/IGF-ESIS.41.65
Смотреть в Scopus:
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85022019050&doi=10.3221%2fIGF-ESIS.41.65&partnerID=40&md5=3e3958bc14b152068a3af269554fd970
Соавторы в МНС:
Другие поля
Поле Значение
Link https://www.scopus.com/inward/record.uri?eid=2-s2.0-85022019050&doi=10.3221%2fIGF-ESIS.41.65&partnerID=40&md5=3e3958bc14b152068a3af269554fd970
Affiliations Institute of Natural Sciences and Mathematics, Ural Federal University, Yekaterinburg, Russian Federation; Institute of metal physics, Yekaterinburg, Russian Federation; Institute of Continuous Media Mechanics, Perm, Russian Federation
Author Keywords Alumina; Computer tomography; Dynamic indentation; Fracture
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Publisher Gruppo Italiano Frattura
Language of Original Document English
Abbreviated Source Title Frat. Integrita Strutr.
Source Scopus