Publication detail

Crack kinking out of interface of two orthotropic materials under combined thermal/mechanical loading

ŠEVEČEK, O. KOTOUL, M. PROFANT, T. HRSTKA, M.

Original Title

Crack kinking out of interface of two orthotropic materials under combined thermal/mechanical loading

Type

journal article in Web of Science

Language

English

Original Abstract

The problem of crack path stability along the interface between two orthotropic elastically dissimilar materials under the presence of in-plane residual stresses is analyzed using the concept of Finite Fracture Mechanics and matched asymptotic procedure. The complex stress intensity factor and the T-stress characterizing the stress state at the crack tip are calculated both for the thermal (residual stresses) and mechanical loading using the two-state integral. The matched asymptotic procedure together with FEM is used to derive the change of the potential energy induced by the incremental crack growth (and correspondingly the incremental energy release rate of such a crack), which is needed for the fracture criterion formulation. An energy based fracture criterion is introduced for this problem and it is investigated whether and how is the criterion for the prediction of crack kinking from the interface affected by residual stresses.

Keywords

Interface crack, Finite Fracture Mechanics, Crack kinking, Fracture Criterion, FEM, T-stress

Authors

ŠEVEČEK, O.; KOTOUL, M.; PROFANT, T.; HRSTKA, M.

Released

3. 2. 2020

Publisher

Elsevier

Location

Netherlands

ISBN

0167-8442

Periodical

Theoretical and Applied Fracture Mechanics

Year of study

105

Number

1

State

Kingdom of the Netherlands

Pages from

1

Pages to

18

Pages count

18

URL

https://www.sciencedirect.com/science/article/pii/S0167844219304975

BibTex

@article{BUT160774,
  author="Oldřich {Ševeček} and Michal {Kotoul} and Tomáš {Profant} and Miroslav {Hrstka}",
  title="Crack kinking out of interface of two orthotropic materials under combined thermal/mechanical loading",
  journal="Theoretical and Applied Fracture Mechanics",
  year="2020",
  volume="105",
  number="1",
  pages="1--18",
  doi="10.1016/j.tafmec.2019.102397",
  issn="0167-8442",
  url="https://www.sciencedirect.com/science/article/pii/S0167844219304975"
}