Publication detail

Towards Quantitative Explanation of Effective Thresholds of Mode III Fatigue Crack Propagation in Metals

VOJTEK, T. ŽÁK, S. POKLUDA, J.

Original Title

Towards Quantitative Explanation of Effective Thresholds of Mode III Fatigue Crack Propagation in Metals

English Title

Towards Quantitative Explanation of Effective Thresholds of Mode III Fatigue Crack Propagation in Metals

Type

book chapter

Language

en

Original Abstract

The article presents the state-of-the art of tools for prediction of mode I, II and III effective thresholds for metallic materials. The effective threshold is independent of the stress ratio as well as the yield strength and is, therefore, a universal parameter for a particular metal. It can also be also used to separate the effective and crack closure components of resistance to fatigue crack growth. Results of recent research provided relationships for quantification of mode II and mode III effective thresholds for a wide range of metallic materials which are in a good agreement with experiments. The local crack growth mode has to be taken into account which depends on crystal lattice type and secondary phase type. The mode III cracks propagate by local crack front advances under mode I or mode II which was taken into account in numerical calculation of local stress intensity factors. It allowed explanation of the experimentally obtained values of the mode III effective thresholds.

English abstract

The article presents the state-of-the art of tools for prediction of mode I, II and III effective thresholds for metallic materials. The effective threshold is independent of the stress ratio as well as the yield strength and is, therefore, a universal parameter for a particular metal. It can also be also used to separate the effective and crack closure components of resistance to fatigue crack growth. Results of recent research provided relationships for quantification of mode II and mode III effective thresholds for a wide range of metallic materials which are in a good agreement with experiments. The local crack growth mode has to be taken into account which depends on crystal lattice type and secondary phase type. The mode III cracks propagate by local crack front advances under mode I or mode II which was taken into account in numerical calculation of local stress intensity factors. It allowed explanation of the experimentally obtained values of the mode III effective thresholds.

Keywords

Effective threshold; Modes II and III; Local growth mode; Metals

Released

01.10.2019

Publisher

Springer

Location

Cham

ISBN

978-3-030-13980-3

Book

Mechanical Fatigue of Metals

Edition

Structural Integrity

Edition number

7

Pages from

161

Pages to

167

Pages count

7

URL

Documents

BibTex


@inbook{BUT162149,
  author="Tomáš {Vojtek} and Stanislav {Žák} and Jaroslav {Pokluda}",
  title="Towards Quantitative Explanation of Effective Thresholds of Mode III Fatigue Crack Propagation in Metals",
  annote="The article presents the state-of-the art of tools for prediction of mode I, II and III effective thresholds for metallic materials. The effective threshold is independent of the stress ratio as well as the yield strength and is, therefore, a universal parameter for a particular metal. It can also be also used to separate the effective and crack closure components of resistance to fatigue crack growth. Results of recent research provided relationships for quantification of mode II and mode III effective thresholds for a wide range of metallic materials which are in a good agreement with experiments. The local crack growth mode has to be taken into account which depends on crystal lattice type and secondary phase type. The mode III cracks propagate by local crack front advances under mode I or mode II which was taken into account in numerical calculation of local stress intensity factors. It allowed explanation of the experimentally obtained values of the mode III effective thresholds.",
  address="Springer",
  booktitle="Mechanical Fatigue of Metals",
  chapter="162149",
  doi="10.1007/978-3-030-13980-3_21",
  edition="Structural Integrity",
  howpublished="online",
  institution="Springer",
  year="2019",
  month="october",
  pages="161--167",
  publisher="Springer",
  type="book chapter"
}