Accurate determination of stress intensity factor for interface crack by finite element method

Kazuhiro Oda; Nao Aki Noda; Satya N. Atluri

doi:10.4028/0-87849-456-1.3124

Accurate determination of stress intensity factor for interface crack by finite element method

Kazuhiro Oda, Nao Aki Noda, Satya N. Atluri

Mechanical Engineering

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

3 Scopus citations

Abstract

This paper presents the simple method to determine the complex stress intensity factor of interface crack problem by the finite element method. The proportional method is extended to the interface crack problem. In the present method, the stress values at the crack tip calculated by FEM are used and the stress intensity factors of interface crack are evaluated from the ratio of stress values between a given and a reference problems. A single interface crack in an infinite bi-material plate subjected to tension and shear is selected as the reference problem in this study. The accuracy of the present analysis is discussed through the results obtained by other methods. As the result, it is confirmed that the present method is useful for analyzing the interface crack problem.

Original language	English
Pages (from-to)	3124-3127
Number of pages	4
Journal	Key Engineering Materials
Volume	353-358
Issue number	PART 4
DOIs	https://doi.org/10.4028/0-87849-456-1.3124
State	Published - 2007
Event	Asian Pacific Conference for Fracture and Strength (APCFS'06) - Sanya, Hainan Island, China Duration: Nov 22 2006 → Nov 25 2006

Keywords

Bi-material
Finite element method
Interface crack
Stress intensity factor

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title = "Accurate determination of stress intensity factor for interface crack by finite element method",

abstract = "This paper presents the simple method to determine the complex stress intensity factor of interface crack problem by the finite element method. The proportional method is extended to the interface crack problem. In the present method, the stress values at the crack tip calculated by FEM are used and the stress intensity factors of interface crack are evaluated from the ratio of stress values between a given and a reference problems. A single interface crack in an infinite bi-material plate subjected to tension and shear is selected as the reference problem in this study. The accuracy of the present analysis is discussed through the results obtained by other methods. As the result, it is confirmed that the present method is useful for analyzing the interface crack problem.",

keywords = "Bi-material, Finite element method, Interface crack, Stress intensity factor",

author = "Kazuhiro Oda and Noda, {Nao Aki} and Atluri, {Satya N.}",

year = "2007",

doi = "10.4028/0-87849-456-1.3124",

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volume = "353-358",

pages = "3124--3127",

journal = "Key Engineering Materials",

issn = "1013-9826",

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TY - JOUR

T1 - Accurate determination of stress intensity factor for interface crack by finite element method

AU - Oda, Kazuhiro

AU - Noda, Nao Aki

AU - Atluri, Satya N.

PY - 2007

Y1 - 2007

N2 - This paper presents the simple method to determine the complex stress intensity factor of interface crack problem by the finite element method. The proportional method is extended to the interface crack problem. In the present method, the stress values at the crack tip calculated by FEM are used and the stress intensity factors of interface crack are evaluated from the ratio of stress values between a given and a reference problems. A single interface crack in an infinite bi-material plate subjected to tension and shear is selected as the reference problem in this study. The accuracy of the present analysis is discussed through the results obtained by other methods. As the result, it is confirmed that the present method is useful for analyzing the interface crack problem.

AB - This paper presents the simple method to determine the complex stress intensity factor of interface crack problem by the finite element method. The proportional method is extended to the interface crack problem. In the present method, the stress values at the crack tip calculated by FEM are used and the stress intensity factors of interface crack are evaluated from the ratio of stress values between a given and a reference problems. A single interface crack in an infinite bi-material plate subjected to tension and shear is selected as the reference problem in this study. The accuracy of the present analysis is discussed through the results obtained by other methods. As the result, it is confirmed that the present method is useful for analyzing the interface crack problem.

KW - Bi-material

KW - Finite element method

KW - Interface crack

KW - Stress intensity factor

UR - http://www.scopus.com/inward/record.url?scp=36048993963&partnerID=8YFLogxK

U2 - 10.4028/0-87849-456-1.3124

DO - 10.4028/0-87849-456-1.3124

M3 - Conference article

AN - SCOPUS:36048993963

VL - 353-358

SP - 3124

EP - 3127

JO - Key Engineering Materials

JF - Key Engineering Materials

SN - 1013-9826

IS - PART 4

Y2 - 22 November 2006 through 25 November 2006

ER -