Applications of the weight function method

Timo Mikkola

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

Abstract

New solutions were developed for the stress intensity factor and the crack opening displacement at the crack center for the semi-elliptical surface crack in a wide plate under remote tension and bending loads. The solutions were based on results of finite element analyses made by an automated program system and the accuracy of the results was carefully studied. The new solutions were used for developing weight functions for the structure. The accuracy of these weight functions was tested by analyzing several loading cases. The present automated finite element analysis of surface cracks can be applied to practically any structural geometry and the results can be applied in developing a weight function for the case. This was demonstrated by developing a weight function for a surface crack in a weld connecting a nozzle to a pressure vessel. The accuracy of the present weight function method is sufficient for practical applications.

Original languageEnglish
Pages (from-to)209 - 231
Number of pages23
JournalEngineering Fracture Mechanics
Volume45
Issue number2
DOIs
Publication statusPublished - 1993
MoE publication typeA1 Journal article-refereed

Fingerprint

Cracks
Pressure vessels
Stress intensity factors
Nozzles
Welds
Finite element method
Geometry

Cite this

Mikkola, Timo. / Applications of the weight function method. In: Engineering Fracture Mechanics. 1993 ; Vol. 45, No. 2. pp. 209 - 231.
@article{1217465346e24b07938936eb11f11854,
title = "Applications of the weight function method",
abstract = "New solutions were developed for the stress intensity factor and the crack opening displacement at the crack center for the semi-elliptical surface crack in a wide plate under remote tension and bending loads. The solutions were based on results of finite element analyses made by an automated program system and the accuracy of the results was carefully studied. The new solutions were used for developing weight functions for the structure. The accuracy of these weight functions was tested by analyzing several loading cases. The present automated finite element analysis of surface cracks can be applied to practically any structural geometry and the results can be applied in developing a weight function for the case. This was demonstrated by developing a weight function for a surface crack in a weld connecting a nozzle to a pressure vessel. The accuracy of the present weight function method is sufficient for practical applications.",
author = "Timo Mikkola",
year = "1993",
doi = "10.1016/0013-7944(93)90187-W",
language = "English",
volume = "45",
pages = "209 -- 231",
journal = "Engineering Fracture Mechanics",
issn = "0013-7944",
publisher = "Elsevier",
number = "2",

}

Applications of the weight function method. / Mikkola, Timo.

In: Engineering Fracture Mechanics, Vol. 45, No. 2, 1993, p. 209 - 231.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Applications of the weight function method

AU - Mikkola, Timo

PY - 1993

Y1 - 1993

N2 - New solutions were developed for the stress intensity factor and the crack opening displacement at the crack center for the semi-elliptical surface crack in a wide plate under remote tension and bending loads. The solutions were based on results of finite element analyses made by an automated program system and the accuracy of the results was carefully studied. The new solutions were used for developing weight functions for the structure. The accuracy of these weight functions was tested by analyzing several loading cases. The present automated finite element analysis of surface cracks can be applied to practically any structural geometry and the results can be applied in developing a weight function for the case. This was demonstrated by developing a weight function for a surface crack in a weld connecting a nozzle to a pressure vessel. The accuracy of the present weight function method is sufficient for practical applications.

AB - New solutions were developed for the stress intensity factor and the crack opening displacement at the crack center for the semi-elliptical surface crack in a wide plate under remote tension and bending loads. The solutions were based on results of finite element analyses made by an automated program system and the accuracy of the results was carefully studied. The new solutions were used for developing weight functions for the structure. The accuracy of these weight functions was tested by analyzing several loading cases. The present automated finite element analysis of surface cracks can be applied to practically any structural geometry and the results can be applied in developing a weight function for the case. This was demonstrated by developing a weight function for a surface crack in a weld connecting a nozzle to a pressure vessel. The accuracy of the present weight function method is sufficient for practical applications.

U2 - 10.1016/0013-7944(93)90187-W

DO - 10.1016/0013-7944(93)90187-W

M3 - Article

VL - 45

SP - 209

EP - 231

JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

SN - 0013-7944

IS - 2

ER -