Detail publikačního výsledku

Numerical Analysis of Sub-Critical Crack Growth in Particulate Ceramic Composites

MAJER, Z.; PLETZ, M.; KRAUTGASSER, C.; NÁHLÍK, L.; HUTAŘ, P.; BERMEJO, R.

Originální název

Numerical Analysis of Sub-Critical Crack Growth in Particulate Ceramic Composites

Anglický název

Numerical Analysis of Sub-Critical Crack Growth in Particulate Ceramic Composites

Druh

Článek WoS

Originální abstrakt

The strength of glass or ceramic containing materials can be affected by the environment (stress corrosion). Under applied stress, crack-like defects may grow (sub-critically) for stress intensity factors, KI, below the fracture toughness of the material, KIc. The aim of the present work was to develop a two-dimensional finite element model to analyze the subcritical crack growth behavior of ceramic-based particulate composites. The maximum tangential stress criterion (MTS) was used to predict the direction of the crack propagation, in the framework of linear elastic fracture mechanics. The modeled material was a Low Temperature Co-fired Ceramic (LTCC), containing alumina particles embedded in a glass matrix. The experimentally determined SCCG material behavior (i.e. v-KI data) was implemented in the numerical model. The effect of the elastic modulus of the particles on the subcritical crack propagation was investigated. The conclusions of this paper can contribute to a better understanding of the subcritical propagation of cracks in particulate composites.

Anglický abstrakt

The strength of glass or ceramic containing materials can be affected by the environment (stress corrosion). Under applied stress, crack-like defects may grow (sub-critically) for stress intensity factors, KI, below the fracture toughness of the material, KIc. The aim of the present work was to develop a two-dimensional finite element model to analyze the subcritical crack growth behavior of ceramic-based particulate composites. The maximum tangential stress criterion (MTS) was used to predict the direction of the crack propagation, in the framework of linear elastic fracture mechanics. The modeled material was a Low Temperature Co-fired Ceramic (LTCC), containing alumina particles embedded in a glass matrix. The experimentally determined SCCG material behavior (i.e. v-KI data) was implemented in the numerical model. The effect of the elastic modulus of the particles on the subcritical crack propagation was investigated. The conclusions of this paper can contribute to a better understanding of the subcritical propagation of cracks in particulate composites.

Klíčová slova

Fracture Mechanics; Low Temperature Co-fired Ceramics; Micro-crack Propagation; Finite Element Method; Lifetime Estimation

Klíčová slova v angličtině

Fracture Mechanics; Low Temperature Co-fired Ceramics; Micro-crack Propagation; Finite Element Method; Lifetime Estimation

Autoři

MAJER, Z.; PLETZ, M.; KRAUTGASSER, C.; NÁHLÍK, L.; HUTAŘ, P.; BERMEJO, R.

Rok RIV

2015

Vydáno

01.07.2014

Nakladatel

ELSEVIER

ISSN

2211-8128

Periodikum

Procedia Materials Science

Svazek

3

Číslo

1

Stát

Nizozemsko

Strany od

2071

Strany do

2076

Strany počet

6

BibTex

@article{BUT109045,
  author="Zdeněk {Majer} and Martin {Pletz} and Clemens {Krautgasser} and Luboš {Náhlík} and Pavel {Hutař} and Raul {Bermejo}",
  title="Numerical Analysis of Sub-Critical Crack Growth in Particulate Ceramic Composites",
  journal="Procedia Materials Science",
  year="2014",
  volume="3",
  number="1",
  pages="2071--2076",
  doi="10.1016/j.mspro.2014.06.335",
  issn="2211-8128"
}