Publication result detail

Modeling of fatigue crack growth in ceramics under compressive cycling

ELIÁŠ, J.; LE, J.

Original Title

Modeling of fatigue crack growth in ceramics under compressive cycling

English Title

Modeling of fatigue crack growth in ceramics under compressive cycling

Type

Paper in proceedings (conference paper)

Original Abstract

This contribution presents a simple numerical model for crack growth under mode-I compressive fatigue loading. Residual tensile stress at the crack tip, which is responsible for crack advance, is simulated by the plastic-like behavior in compression. Tensile part of the constitutive law accomodates a phenomenological hysteresis behavior. This constitutive law is implemented into an implicit discrete 2D numerical model. The model is used to simulate the compression-compression fatigue fracturing of ceramics, particularly polycristalline alumina. It is shown that the model is capable of capituring trends observed in experimentally obtained crack growth behavior.

English abstract

This contribution presents a simple numerical model for crack growth under mode-I compressive fatigue loading. Residual tensile stress at the crack tip, which is responsible for crack advance, is simulated by the plastic-like behavior in compression. Tensile part of the constitutive law accomodates a phenomenological hysteresis behavior. This constitutive law is implemented into an implicit discrete 2D numerical model. The model is used to simulate the compression-compression fatigue fracturing of ceramics, particularly polycristalline alumina. It is shown that the model is capable of capituring trends observed in experimentally obtained crack growth behavior.

Keywords

compression-compression fatigue, discrete model, hysteresis, crack arrest

Key words in English

compression-compression fatigue, discrete model, hysteresis, crack arrest

Authors

ELIÁŠ, J.; LE, J.

RIV year

2012

Released

09.05.2011

Location

Svratka

ISBN

978-80-87012-33-8

Book

17th International Conference, Engineering Mechanics 2011

Pages from

131

Pages to

134

Pages count

4

BibTex

@inproceedings{BUT89513,
  author="Jan {Eliáš} and Jia-Liang {Le}",
  title="Modeling of fatigue crack growth in ceramics under compressive cycling",
  booktitle="17th International Conference, Engineering Mechanics 2011",
  year="2011",
  pages="131--134",
  address="Svratka",
  isbn="978-80-87012-33-8"
}