Determination of Stress Intensity Factor KI for a Three-Dimensional Crack Front by the Caustic Method

L. Shang; D. F. Wu; Y. Pu; H. T. Wang

doi:10.1007/s40799-016-0106-9

Determination of Stress Intensity Factor K_I for a Three-Dimensional Crack Front by the Caustic Method

L. Shang
, D. F. Wu^*
, Y. Pu
, H. T. Wang

^*Corresponding author for this work

School of Aeronautic Science and Engineering

Beihang University

Research output: Contribution to journal › Article › peer-review

Abstract

In this paper, an experimental technique to determine the stress intensity factor (SIF) K_I for a three-dimensional crack front using the caustic method in combination with the stress-freezing and stress-releasing techniques is proposed. A comparison between the experimental results determined by the proposed method and the traditional photoelastic method is made; in addition, the experimental results of the present work are compared with the theoretical solution of Smith-Alavi. The experimental results obtained by the caustic method coincide favorably with the results obtained by the photoelastic method. The caustic method in combination with the stress-freezing and stress-releasing techniques proposed in the present work makes it possible to consecutively determine the distribution of the SIF K_I for a three-dimensional crack front.

Original language	English
Pages (from-to)	1469-1477
Number of pages	9
Journal	Experimental Techniques
Volume	40
Issue number	6
DOIs	https://doi.org/10.1007/s40799-016-0106-9
State	Published - 1 Dec 2016

Keywords

Freezing photoelastic method
Stress intensity factor (SIF)
Stress-releasing
The caustic method
Three-dimensional crack

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10.1007/s40799-016-0106-9

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title = "Determination of Stress Intensity Factor KI for a Three-Dimensional Crack Front by the Caustic Method",

abstract = "In this paper, an experimental technique to determine the stress intensity factor (SIF) KI for a three-dimensional crack front using the caustic method in combination with the stress-freezing and stress-releasing techniques is proposed. A comparison between the experimental results determined by the proposed method and the traditional photoelastic method is made; in addition, the experimental results of the present work are compared with the theoretical solution of Smith-Alavi. The experimental results obtained by the caustic method coincide favorably with the results obtained by the photoelastic method. The caustic method in combination with the stress-freezing and stress-releasing techniques proposed in the present work makes it possible to consecutively determine the distribution of the SIF KI for a three-dimensional crack front.",

keywords = "Freezing photoelastic method, Stress intensity factor (SIF), Stress-releasing, The caustic method, Three-dimensional crack",

author = "L. Shang and Wu, \{D. F.\} and Y. Pu and Wang, \{H. T.\}",

note = "Publisher Copyright: {\textcopyright} 2016, The Society for Experimental Mechanics, Inc.",

year = "2016",

month = dec,

day = "1",

doi = "10.1007/s40799-016-0106-9",

language = "英语",

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TY - JOUR

T1 - Determination of Stress Intensity Factor KI for a Three-Dimensional Crack Front by the Caustic Method

AU - Shang, L.

AU - Wu, D. F.

AU - Pu, Y.

AU - Wang, H. T.

PY - 2016/12/1

Y1 - 2016/12/1

N2 - In this paper, an experimental technique to determine the stress intensity factor (SIF) KI for a three-dimensional crack front using the caustic method in combination with the stress-freezing and stress-releasing techniques is proposed. A comparison between the experimental results determined by the proposed method and the traditional photoelastic method is made; in addition, the experimental results of the present work are compared with the theoretical solution of Smith-Alavi. The experimental results obtained by the caustic method coincide favorably with the results obtained by the photoelastic method. The caustic method in combination with the stress-freezing and stress-releasing techniques proposed in the present work makes it possible to consecutively determine the distribution of the SIF KI for a three-dimensional crack front.

AB - In this paper, an experimental technique to determine the stress intensity factor (SIF) KI for a three-dimensional crack front using the caustic method in combination with the stress-freezing and stress-releasing techniques is proposed. A comparison between the experimental results determined by the proposed method and the traditional photoelastic method is made; in addition, the experimental results of the present work are compared with the theoretical solution of Smith-Alavi. The experimental results obtained by the caustic method coincide favorably with the results obtained by the photoelastic method. The caustic method in combination with the stress-freezing and stress-releasing techniques proposed in the present work makes it possible to consecutively determine the distribution of the SIF KI for a three-dimensional crack front.

KW - Freezing photoelastic method

KW - Stress intensity factor (SIF)

KW - Stress-releasing

KW - The caustic method

KW - Three-dimensional crack

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DO - 10.1007/s40799-016-0106-9

M3 - 文章

AN - SCOPUS:84994180768

SN - 0732-8818

VL - 40

SP - 1469

EP - 1477

JO - Experimental Techniques

JF - Experimental Techniques

IS - 6

ER -

Determination of Stress Intensity Factor K_I for a Three-Dimensional Crack Front by the Caustic Method

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Keywords

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