Publication result detail

Importance of stress and displacement fields expressed by Williams expansion for fracture analyses in various cracked geometries

MALÍKOVÁ, L.; VESELÝ, V.

Original Title

Importance of stress and displacement fields expressed by Williams expansion for fracture analyses in various cracked geometries

English Title

Importance of stress and displacement fields expressed by Williams expansion for fracture analyses in various cracked geometries

Type

Abstract

Original Abstract

The paper deals with an analysis of the stress and displacement fields in various cracked specimens. The main goal is to determine an accurate approximation of the near-crack-tip fields which can be subsequently used e.g. in the case of quasi-brittle materials for estimation of the extent of a nonlinear zone at the crack tip. Values of coefficients of the so-called higher-order terms of the power expansion by which the fields can be expressed are determined via regression from results of numerical simulations. Various aspects regarding the description of the stress/displacement fields by means of the Williams expansion are discussed.

English abstract

The paper deals with an analysis of the stress and displacement fields in various cracked specimens. The main goal is to determine an accurate approximation of the near-crack-tip fields which can be subsequently used e.g. in the case of quasi-brittle materials for estimation of the extent of a nonlinear zone at the crack tip. Values of coefficients of the so-called higher-order terms of the power expansion by which the fields can be expressed are determined via regression from results of numerical simulations. Various aspects regarding the description of the stress/displacement fields by means of the Williams expansion are discussed.

Keywords

Crack, Williams expansion, higher-order terms coefficients, crack-tip stress field, over-deterministic method

Key words in English

Crack, Williams expansion, higher-order terms coefficients, crack-tip stress field, over-deterministic method

Authors

MALÍKOVÁ, L.; VESELÝ, V.

RIV year

2014

Released

15.04.2013

Location

Velké Karlovice, Česká republika

ISBN

978-80-248-2978-4

Book

Applied Mechanics 2013

Pages from

1

Pages to

2

Pages count

2

BibTex

@misc{BUT102208,
  author="Lucie {Malíková} and Václav {Veselý}",
  title="Importance of stress and displacement fields expressed by Williams expansion for fracture analyses in various cracked geometries",
  booktitle="Applied Mechanics 2013",
  year="2013",
  pages="1--2",
  address="Velké Karlovice, Česká republika",
  isbn="978-80-248-2978-4",
  note="Abstract"
}