Publication detail

Modeling of Mode-I Fatigue Crack Growth in Quasibrittle Structures Under Cyclic Compression

ELIÁŠ, J. LE, J.

Original Title

Modeling of Mode-I Fatigue Crack Growth in Quasibrittle Structures Under Cyclic Compression

Type

journal article - other

Language

English

Original Abstract

A cyclic cohesive zone model is proposed to simulate the mode-I crack growth in quasibrittle structures under compressive fatigue. The constitutive behavior of the cohesive elements is formulated for both tension and compression regimes. A strain-softening cohesive law is adopted for the tension regime whereas a plastic-type cohesive behavior is considered for the compression regime. It is shown that the proposed model is able to capture some essential fracture behaviors of quasibrittle structures under compressive fatigue, which include the onset of fatigue crack growth, the gradual decrease in crack growth rate, and the exhaustion of residual tensile stress over the cycles. Based on a fracture process zone (FPZ)-equivalence principle, it is further shown that the existing kinetics equation for tensile fatigue crack can be extended to the crack growth under cyclic compression.

Keywords

compressive fatigue; fracture kinetics; quasibrittle materials; cohesive zone model

Authors

ELIÁŠ, J.; LE, J.

RIV year

2012

Released

24. 6. 2012

Location

USA

ISBN

0013-7944

Periodical

Engineering Fracture Mechanics

Year of study

2012

Number

96

State

United Kingdom of Great Britain and Northern Ireland

Pages from

26

Pages to

36

Pages count

11

BibTex

@article{BUT98324,
  author="Jan {Eliáš} and Jia-Liang {Le}",
  title="Modeling of Mode-I Fatigue Crack Growth in Quasibrittle Structures Under Cyclic Compression",
  journal="Engineering Fracture Mechanics",
  year="2012",
  volume="2012",
  number="96",
  pages="26--36",
  issn="0013-7944"
}