Publication detail

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

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

Original Title

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

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

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

Authors

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

RIV year

2014

Released

1. 7. 2014

Publisher

ELSEVIER

ISBN

2211-8128

Periodical

Procedia Materials Science

Year of study

3

Number

1

State

Kingdom of the Netherlands

Pages from

2071

Pages to

2076

Pages count

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"
}