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51856

Low Cycle Fatigue and Crack Initiation Prediction at the Root of a Notch

Article

Last updated: 04 Jan 2025

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Abstract

Conventional fracture mechanics have made it possible to quantify the slow propagation of a crack subjected to cyclic loadings,as well as the fracture phase. Unfortunately,it is still impossible to quantify seperately the initiation phasc of a crack. Fatigue crack initiation was investigated by testing 2124T351 Aluminum alloy with 12 mm thick ASTM compact tension specimens having various notch-root radii between 0.1 and 10 mm . Crack initiation was detected by electric potential method. In order to calculate the number of cycles required to initiate a crack,notch root behavior was investigated through two main approaches: Elastic and Elastoplastic analy-sis of stress concentration under fatigue.
The effect of confined plasticity at the notch root was analysed. Consideration of this plasticity would ameliorate to a great extent the crack initiation analysis and prediction.

DOI

10.21608/amme.1986.51856

Authors

First Name

M.

Last Name

GABRA

MiddleName

-

Affiliation

Lecturers,Dept. of Aeronautical Engineering,Military Technical College,CAIRO.

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Orcid

-

First Name

G.

Last Name

RABIE

MiddleName

-

Affiliation

Lecturers,Dept. of Aeronautical Engineering,Military Technical College,CAIRO.

Email

-

City

-

Orcid

-

First Name

M.

Last Name

IBRAHIM

MiddleName

F.E.

Affiliation

Lecturer,Dept. of Machine Design,Military Technical College,CAIRO.

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-

City

-

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-

Volume

1

Article Issue

2nd Conference on Applied Mechanical Engineering.

Related Issue

7959

Issue Date

1986-05-01

Receive Date

2019-10-02

Publish Date

1986-05-01

Page Start

67

Page End

78

Print ISSN

2636-4352

Online ISSN

2636-4360

Link

https://amme.journals.ekb.eg/article_51856.html

Detail API

https://amme.journals.ekb.eg/service?article_code=51856

Order

28

Type

Original Article

Type Code

831

Publication Type

Journal

Publication Title

The International Conference on Applied Mechanics and Mechanical Engineering

Publication Link

https://amme.journals.ekb.eg/

MainTitle

Low Cycle Fatigue and Crack Initiation Prediction at the Root of a Notch

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Article

Created At

22 Jan 2023