Detail publikace
An easy and engineering stability criterion of general singular stress concentrators
KLUSÁK, J. KREPL, O. PROFANT, T.
Anglický název
An easy and engineering stability criterion of general singular stress concentrators
Typ
článek v časopise ve Web of Science, Jimp
Jazyk
en
Originální abstrakt
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.
Anglický abstrakt
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.
Klíčová slova anglicky
Fracture mechanics; Stability criterion; Crack initiation; General singular stress concentrator; Controlling quantity
Vydáno
01.12.2019
Nakladatel
ELSEVIER
Místo
AMSTERDAM
ISSN
0167-8442
Ročník
104
Číslo
1
Strany od–do
102341–102352
Počet stran
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"
}