Publication detail
An easy and engineering stability criterion of general singular stress concentrators
KLUSÁK, J. KREPL, O. PROFANT, T.
English title
An easy and engineering stability criterion of general singular stress concentrators
Type
journal article in Web of Science
Language
en
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 in English
Fracture mechanics; Stability criterion; Crack initiation; General singular stress concentrator; Controlling quantity
Released
01.12.2019
Publisher
ELSEVIER
Location
AMSTERDAM
ISSN
0167-8442
Volume
104
Number
1
Pages from–to
102341–102352
Pages count
11
BIBTEX
@article{BUT163540,
author="Jan {Klusák} and Ondřej {Krepl} and Tomáš {Profant},
title="An easy and engineering stability criterion of general singular stress concentrators",
year="2019",
volume="104",
number="1",
month="December",
pages="102341--102352",
publisher="ELSEVIER",
address="AMSTERDAM",
issn="0167-8442"
}