Publication result detail

An easy and engineering stability criterion of general singular stress concentrators

KLUSÁK, J.; KREPL, O.; PROFANT, T.

Original Title

An easy and engineering stability criterion of general singular stress concentrators

English Title

An easy and engineering stability criterion of general singular stress concentrators

Type

WoS Article

Original Abstract

General singular stress concentrators often occur in engineering components and they represent places prone to crack initiation. Estimation of crack initiation conditions is usually performed by means of stability criteria of generalized fracture mechanics. These stability criteria require knowledge of asymptotic description of the stress state around the general singular stress concentrator. In cases of some concentrators, this analytical-numerical description can be quite difficult and does not belong among straightforward engineering approaches. This paper introduces an easy and engineering way to assess conditions for crack initiation and propagation in general singular stress concentrators using standard numerical approaches. The paper handles well-known criteria of generalized fracture mechanics of sharp and bi-material notches and simplifies them to a practical form usable for engineers. The resulting criterion fits the frame of criteria of finite fracture mechanics and extends their applicability.

English abstract

General singular stress concentrators often occur in engineering components and they represent places prone to crack initiation. Estimation of crack initiation conditions is usually performed by means of stability criteria of generalized fracture mechanics. These stability criteria require knowledge of asymptotic description of the stress state around the general singular stress concentrator. In cases of some concentrators, this analytical-numerical description can be quite difficult and does not belong among straightforward engineering approaches. This paper introduces an easy and engineering way to assess conditions for crack initiation and propagation in general singular stress concentrators using standard numerical approaches. The paper handles well-known criteria of generalized fracture mechanics of sharp and bi-material notches and simplifies them to a practical form usable for engineers. The resulting criterion fits the frame of criteria of finite fracture mechanics and extends their applicability.

Keywords

Fracture mechanics; Stability criterion; Crack initiation; General singular stress concentrator; Controlling quantity

Key words in English

Fracture mechanics; Stability criterion; Crack initiation; General singular stress concentrator; Controlling quantity

Authors

KLUSÁK, J.; KREPL, O.; PROFANT, T.

RIV year

2020

Released

01.12.2019

Publisher

ELSEVIER

Location

AMSTERDAM

ISBN

0167-8442

Periodical

THEORETICAL AND APPLIED FRACTURE MECHANICS

Volume

104

Number

1

State

Kingdom of the Netherlands

Pages from

102341

Pages to

102352

Pages count

11

URL

https://www.sciencedirect.com/science/article/pii/S0167844219301077

BibTex

@article{BUT163540,
  author="Jan {Klusák} and Ondřej {Krepl} and Tomáš {Profant}",
  title="An easy and engineering stability criterion of general singular stress concentrators",
  journal="THEORETICAL AND APPLIED FRACTURE MECHANICS",
  year="2019",
  volume="104",
  number="1",
  pages="102341--102352",
  doi="10.1016/j.tafmec.2019.102341",
  issn="0167-8442",
  url="https://www.sciencedirect.com/science/article/pii/S0167844219301077"
}