Detail publikace

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

ELIÁŠ, J. LE, J.

Originální název

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

Typ

článek v časopise - ostatní, Jost

Jazyk

angličtina

Originální abstrakt

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.

Klíčová slova

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

Autoři

ELIÁŠ, J.; LE, J.

Rok RIV

2012

Vydáno

24. 6. 2012

Místo

USA

ISSN

0013-7944

Periodikum

Engineering Fracture Mechanics

Ročník

2012

Číslo

96

Stát

Spojené království Velké Británie a Severního Irska

Strany od

26

Strany do

36

Strany počet

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"
}