HYBRID-FINITE-ELEMENT ANALYSIS OF SOME NONLINEAR AND 3-DIMENSIONAL PROBLEMS OF ENGINEERING FRACTURE MECHANICS.

Satya N. Atluri; M. Nakagaki; K. Kathiresan

HYBRID-FINITE-ELEMENT ANALYSIS OF SOME NONLINEAR AND 3-DIMENSIONAL PROBLEMS OF ENGINEERING FRACTURE MECHANICS.

Satya N. Atluri, M. Nakagaki, K. Kathiresan

Mechanical Engineering

Research output: Contribution to journal › Conference article › peer-review

Abstract

In this paper, efficient numerical methods for the analysis of crack-closure effects on fatigue-crack-growth-rates, in plane stress situations, and for the solution of stress-intensity factors for arbitrary shaped surface flaws in pressure vessels, are presented. For the former problem, an elastic-plastic finite element procedure valid for the case of finite deformation gradients is developed and crack growth is simulated by the translation of near-crack-tip elements with embedded plastic singularities. For the latter problem, an embedded-elastic-singularity hybrid finite element method, which leads to a direct evaluation of K-factors, is employed.

Original language	English
Pages (from-to)	14. 1-14. 32
Journal	IEE Conference Publication
Volume	1
State	Published - 1979
Event	Eng Appl of the Finite Elem Method, Pap Presented at the Int Conf - Hovik, Norw Duration: May 9 1979 → May 11 1979

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@article{862497c04dea444cae94d2b0ffbe3d49,

title = "HYBRID-FINITE-ELEMENT ANALYSIS OF SOME NONLINEAR AND 3-DIMENSIONAL PROBLEMS OF ENGINEERING FRACTURE MECHANICS.",

abstract = "In this paper, efficient numerical methods for the analysis of crack-closure effects on fatigue-crack-growth-rates, in plane stress situations, and for the solution of stress-intensity factors for arbitrary shaped surface flaws in pressure vessels, are presented. For the former problem, an elastic-plastic finite element procedure valid for the case of finite deformation gradients is developed and crack growth is simulated by the translation of near-crack-tip elements with embedded plastic singularities. For the latter problem, an embedded-elastic-singularity hybrid finite element method, which leads to a direct evaluation of K-factors, is employed.",

author = "Atluri, {Satya N.} and M. Nakagaki and K. Kathiresan",

year = "1979",

language = "English",

volume = "1",

pages = "14. 1--14. 32",

journal = "IEE Conference Publication",

issn = "0537-9989",

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TY - JOUR

T1 - HYBRID-FINITE-ELEMENT ANALYSIS OF SOME NONLINEAR AND 3-DIMENSIONAL PROBLEMS OF ENGINEERING FRACTURE MECHANICS.

AU - Atluri, Satya N.

AU - Nakagaki, M.

AU - Kathiresan, K.

PY - 1979

Y1 - 1979

N2 - In this paper, efficient numerical methods for the analysis of crack-closure effects on fatigue-crack-growth-rates, in plane stress situations, and for the solution of stress-intensity factors for arbitrary shaped surface flaws in pressure vessels, are presented. For the former problem, an elastic-plastic finite element procedure valid for the case of finite deformation gradients is developed and crack growth is simulated by the translation of near-crack-tip elements with embedded plastic singularities. For the latter problem, an embedded-elastic-singularity hybrid finite element method, which leads to a direct evaluation of K-factors, is employed.

AB - In this paper, efficient numerical methods for the analysis of crack-closure effects on fatigue-crack-growth-rates, in plane stress situations, and for the solution of stress-intensity factors for arbitrary shaped surface flaws in pressure vessels, are presented. For the former problem, an elastic-plastic finite element procedure valid for the case of finite deformation gradients is developed and crack growth is simulated by the translation of near-crack-tip elements with embedded plastic singularities. For the latter problem, an embedded-elastic-singularity hybrid finite element method, which leads to a direct evaluation of K-factors, is employed.

UR - http://www.scopus.com/inward/record.url?scp=0345759711&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:0345759711

VL - 1

SP - 14. 1-14. 32

JO - IEE Conference Publication

JF - IEE Conference Publication

SN - 0537-9989

Y2 - 9 May 1979 through 11 May 1979

ER -