Recent developments in multi-parametric three-dimensional stress field representation in plates weakened by cracks and notches

The paper deals with the three-dimensional nature and the multi-parametric representation of the stress field ahead of cracks and notches of different shape. Finite thickness plates are considered, under different loading conditions. Under certain hypotheses, the three-dimensional governing equation...

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Main Authors: P. Lazzarin, M. Zappalorto, F. Berto
Format: Article
Language:English
Published: Gruppo Italiano Frattura 2013-07-01
Series:Fracture and Structural Integrity
Subjects:
Online Access:http://www.gruppofrattura.it/pdf/rivista/numero25/numero_25_art_10.pdf
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author P. Lazzarin
M. Zappalorto
F. Berto
author_facet P. Lazzarin
M. Zappalorto
F. Berto
author_sort P. Lazzarin
collection DOAJ
description The paper deals with the three-dimensional nature and the multi-parametric representation of the stress field ahead of cracks and notches of different shape. Finite thickness plates are considered, under different loading conditions. Under certain hypotheses, the three-dimensional governing equations of elasticity can be reduced to a system where a bi-harmonic equation and a harmonic equation have to be simultaneously satisfied. The former provides the solution of the corresponding plane notch problem, the latter provides the solution of the corresponding out-of-plane shear notch problem. The analytical frame is applied to some notched and cracked geometries and its degree of accuracy is discussed comparing theoretical results and numerical data from 3D FE models.
format Article
id doaj-art-4691f250c2da4bada550343933afd300
institution Kabale University
issn 1971-8993
language English
publishDate 2013-07-01
publisher Gruppo Italiano Frattura
record_format Article
series Fracture and Structural Integrity
spelling doaj-art-4691f250c2da4bada550343933afd3002025-02-03T00:44:41ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932013-07-01725616810.3221/IGF-ESIS.25.10Recent developments in multi-parametric three-dimensional stress field representation in plates weakened by cracks and notchesP. LazzarinM. ZappalortoF. BertoThe paper deals with the three-dimensional nature and the multi-parametric representation of the stress field ahead of cracks and notches of different shape. Finite thickness plates are considered, under different loading conditions. Under certain hypotheses, the three-dimensional governing equations of elasticity can be reduced to a system where a bi-harmonic equation and a harmonic equation have to be simultaneously satisfied. The former provides the solution of the corresponding plane notch problem, the latter provides the solution of the corresponding out-of-plane shear notch problem. The analytical frame is applied to some notched and cracked geometries and its degree of accuracy is discussed comparing theoretical results and numerical data from 3D FE models.http://www.gruppofrattura.it/pdf/rivista/numero25/numero_25_art_10.pdfThree-dimensional elasticityStress fieldsAntiplane solutionPlane solution
spellingShingle P. Lazzarin
M. Zappalorto
F. Berto
Recent developments in multi-parametric three-dimensional stress field representation in plates weakened by cracks and notches
Fracture and Structural Integrity
Three-dimensional elasticity
Stress fields
Antiplane solution
Plane solution
title Recent developments in multi-parametric three-dimensional stress field representation in plates weakened by cracks and notches
title_full Recent developments in multi-parametric three-dimensional stress field representation in plates weakened by cracks and notches
title_fullStr Recent developments in multi-parametric three-dimensional stress field representation in plates weakened by cracks and notches
title_full_unstemmed Recent developments in multi-parametric three-dimensional stress field representation in plates weakened by cracks and notches
title_short Recent developments in multi-parametric three-dimensional stress field representation in plates weakened by cracks and notches
title_sort recent developments in multi parametric three dimensional stress field representation in plates weakened by cracks and notches
topic Three-dimensional elasticity
Stress fields
Antiplane solution
Plane solution
url http://www.gruppofrattura.it/pdf/rivista/numero25/numero_25_art_10.pdf
work_keys_str_mv AT plazzarin recentdevelopmentsinmultiparametricthreedimensionalstressfieldrepresentationinplatesweakenedbycracksandnotches
AT mzappalorto recentdevelopmentsinmultiparametricthreedimensionalstressfieldrepresentationinplatesweakenedbycracksandnotches
AT fberto recentdevelopmentsinmultiparametricthreedimensionalstressfieldrepresentationinplatesweakenedbycracksandnotches