International journal of

ADVANCED AND APPLIED SCIENCES

EISSN: 2313-3724, Print ISSN:2313-626X

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 Volume 5, Issue 10 (October 2018), Pages: 93-96

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 Original Research Paper

 Title: Dynamic fracture toughness determination of polycrystalline advanced ceramics using the crack closure integral method

 Author(s): Marin Petrovic *, Elvedin Kljuno

 Affiliation(s):

 Mechanical Engineering Faculty, University of Sarajevo, Sarajevo, Bosnia and Herzegovina

 https://doi.org/10.21833/ijaas.2018.10.013

 Full Text - PDF          XML

 Abstract:

The development of ultra-hard cutting tool materials such as cubic boron nitride and ceramics exhibiting excellent wear resistance, chemical stability and hardness at high temperatures have enabled much higher cutting speeds and dry machining. In order to achieve high performance cutting, it is necessary to know the true properties of the cutting tool materials in real operating conditions as well as mechanisms of their failure. The aim of this paper is to determine the properties of certain types of polycrystalline advanced ceramics at a range of loading rates, including dynamics involved in these processes. In order to determine the dynamic fracture toughness of two grades of the material, a crack closure integral method was applied, showing some discrepancy to the static values at high loading rates. 

 © 2018 The Authors. Published by IASE.

 This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

 Keywords: Brittle fracture, Fracture mechanics, Impact fracture, Dynamic fracture toughness

 Article History: Received 3 June 2018, Received in revised form 15 August 2018, Accepted 20 August 2018

 Digital Object Identifier: 

 https://doi.org/10.21833/ijaas.2018.10.013

 Citation:

  Petrovic M and Kljuno E (2018). Dynamic fracture toughness determination of polycrystalline advanced ceramics using the crack closure integral method. International Journal of Advanced and Applied Sciences, 5(10): 93-96

 Permanent Link:

 http://www.science-gate.com/IJAAS/2018/V5I10/Petrovic.html

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