Prediction of ring crack initiation in ceramics and glasses using a stress-energy fracture criterion
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F23%3APU148054" target="_blank" >RIV/00216305:26210/23:PU148054 - isvavai.cz</a>
Result on the web
<a href="https://ceramics.onlinelibrary.wiley.com/doi/10.1111/jace.19076" target="_blank" >https://ceramics.onlinelibrary.wiley.com/doi/10.1111/jace.19076</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1111/jace.19076" target="_blank" >10.1111/jace.19076</a>
Alternative languages
Result language
angličtina
Original language name
Prediction of ring crack initiation in ceramics and glasses using a stress-energy fracture criterion
Original language description
Crack initiation in brittle materials upon spherical indentation is associated with the tensile radial stresses during loading. However, location of crack onset often differs (offset) from the site of maximal stress. In addition, experiments reveal a strong dependency of crack initiation forces on geometrical parameters as well as the surface condition of the sample. In this work, a coupled stress-energy fracture criterion is introduced to describe the initiation of ring cracks in brittle materials, which takes into account the geometry of the contact and the inherent strength and fracture toughness of the material. Several experiments reported in literature are evaluated and compared. The criterion can explain the location offset of the ring crack upon loading, as observed in various ceramics and glasses. It also predicts the ring crack initiation force upon contact loading, provided that surface compressive stresses, introduced during grinding or polishing processes, are taken into account. Furthermore, the stress-energy criterion may be employed to estimate the surface residual stress of ceramic parts, based on simple contact damage experiments.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20504 - Ceramics
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2023
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of the American Ceramic Society
ISSN
0002-7820
e-ISSN
1551-2916
Volume of the periodical
106
Issue of the periodical within the volume
7
Country of publishing house
US - UNITED STATES
Number of pages
14
Pages from-to
„“-„“
UT code for WoS article
000945317400001
EID of the result in the Scopus database
2-s2.0-85150475530