Original title: 3D Model of Crack Propagation in Particulate Ceramic Composite Containing Residual Stresses
Authors: Štegnerová, Kateřina ; Majer, Zdeněk ; Hutař, Pavel ; Náhlík, Luboš
Document type: Papers
Conference/Event: FDM 2017 - International Conference on Fracture and Damage Mechanics /16./, Florence (IT), 20170718
Year: 2017
Language: eng
Abstract: A crack propagation and fracture behaviour of particulate ceramic composite were investigated. Influence of 3D shape of particles on the crack propagation was studied together with influence of the presence of residual stresses, which are developed inside the composite during manufacturing process. Finite element (FE) method was used for numerical simulation of propagating crack in the composite. Basic numerical models of low-temperature co-fired ceramics (LTCC) with alumina particles homogenously dispersed in the glass matrix were developed. Volume fraction of alumina phase was 20vol.%, which is typical amount for LTCC. The results show that existence of residual stresses retards the crack propagating under conditions of sub-critical crack growth (SCG). Presented results contribute to a better understanding of the role of residual stresses in particulate ceramic composites.
Keywords: ceramic particulate composite; residual stresses; sub-critical crack growth
Host item entry: Advances in Fracture and Damage Mechanics XVI, ISBN 978-3-0357-1168-4, ISSN 1662-9795

Institution: Institute of Physics of Materials AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0276878

Permalink: http://www.nusl.cz/ntk/nusl-373303


The record appears in these collections:
Research > Institutes ASCR > Institute of Physics of Materials
Conference materials > Papers