Modelling of cracking of the ceramic foam specimen with a central notch under the tensile load

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F19%3APU131404" target="_blank" >RIV/00216305:26210/19:PU131404 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0167844218306232?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0167844218306232?via%3Dihub</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.tafmec.2019.01.024" target="_blank" >10.1016/j.tafmec.2019.01.024</a>

Result language
angličtina
Original language name
Modelling of cracking of the ceramic foam specimen with a central notch under the tensile load
Original language description
In this contribution, open cell ceramic foam structures composed of regular/irregular shape cells and containing macroscopic central notch/crack are investigated in terms of their cracking upon the tensile loading and their strength is predicted using the FE simulations. The developed model of the real ceramic foam specimen contains a central notch/crack and is subjected to a tension, resulting in a failure beginning at the tip of the notch. The work discusses an approach how to predict the critical failure load and also the crack path in the foam structure. Various cell irregularity and size of the macroscopic notch is considered in the investigations. Predictions of the foam structure cracking are performed using the beam element based FE model having characteristics of the real foam structure and by utilization of the stress criterion which considers failure of particular struts, when the maximal stress on them reaches the tensile strength of the ceramic material. Outputs from simulations are compared with available experimental observations and with an estimation of the critical failure load calculated using the developed analytical model.
Czech name
—
Czech description
—

Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20302 - Applied mechanics

Project
<a href="/en/project/GJ17-08447Y" target="_blank" >GJ17-08447Y: Computational modelling of failure in highly porous ceramic materials with real intrinsic defects</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)