Publication detail

Dislocation-based and Continuum Models of Crack tip Shielding in Fatigue

POKLUDA, J.

Original Title

Dislocation-based and Continuum Models of Crack tip Shielding in Fatigue

Type

abstract

Language

English

Original Abstract

Along with external forces and the macro-geometry of cracked bodies, the local stress intensity factors k (or \delta k) at fronts of brittle and fatigue cracks are also determined by internal residual stress fields and the crack front microgeometry (extrinsic shielding). Consequently, the values of k (\delta k) that represent a real crack driving force can be significantly different from those of the remote K (\delta K). This means that, even in the frame of two-parameter linear-elastic fracture mechanics, a characterization of the crack-tip stress field only by K and T is not sufficient at all.

Keywords

Stínění špice trhliny; Dislokační model; Modelů kontinua

Authors

POKLUDA, J.

Released

1. 7. 2011

Publisher

Politechnika Opole

Location

Opole

ISBN

1429-6055

Periodical

Zeszyty naukowe politechniki Opolskiej seria Mechanika

Year of study

99

Number

343

State

Republic of Poland

Pages from

44

Pages to

45

Pages count

2

BibTex

@misc{BUT88509,
  author="Jaroslav {Pokluda}",
  title="Dislocation-based and Continuum Models of Crack tip Shielding in Fatigue",
  year="2011",
  journal="Zeszyty naukowe politechniki Opolskiej seria Mechanika",
  volume="99",
  number="343",
  pages="44--45",
  publisher="Politechnika Opole",
  address="Opole",
  issn="1429-6055",
  note="abstract"
}