Stress field analysis of 135-degree sharp corners based on notch stress strength theory

Wei Shen; Ren Jun Yan; Nigel Barltrop; Ping Yang; En Qian Liu; Kai Qin

doi:10.3969/j.issn.1007-7294.2015.03.005

Stress field analysis of 135-degree sharp corners based on notch stress strength theory

Wei Shen^*, Ren Jun Yan, Nigel Barltrop, Ping Yang, En Qian Liu, Kai Qin

^*Corresponding author for this work

Naval Architecture, Ocean And Marine Engineering

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

4 Citations (Scopus)

Abstract

There is a need to better understand the stress singularity effect of welded joints with consideration of the geometrical factors that produce locally high stresses. Based on notch stress strength theory, this paper presents a simple method using the singularity strength 'as'for estimating the stress field distribution at the corner. Validity of this method is further verified by analyzing the stress results for a series of cruciform models. Finally, comparisons are made between the results of this modified method and the corresponding N-SIF formula. The results show that the proposed method has the additional advantage in simple and accurate stress estimation for welded joints. Key words:

Original language	English
Pages (from-to)	273-283
Number of pages	11
Journal	Journal of Ship Mechanics
Volume	19
Issue number	3
DOIs	https://doi.org/10.3969/j.issn.1007-7294.2015.03.005
Publication status	Published - 1 Jan 2015

Keywords

135 degree sharp corner
notch-stress intensity factor (N-SIF)
singularity strength (as)
stress singularity effect

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10.3969/j.issn.1007-7294.2015.03.005

Cite this

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title = "Stress field analysis of 135-degree sharp corners based on notch stress strength theory",

abstract = "There is a need to better understand the stress singularity effect of welded joints with consideration of the geometrical factors that produce locally high stresses. Based on notch stress strength theory, this paper presents a simple method using the singularity strength 'as'for estimating the stress field distribution at the corner. Validity of this method is further verified by analyzing the stress results for a series of cruciform models. Finally, comparisons are made between the results of this modified method and the corresponding N-SIF formula. The results show that the proposed method has the additional advantage in simple and accurate stress estimation for welded joints. Key words:",

keywords = "135 degree sharp corner, notch-stress intensity factor (N-SIF), singularity strength (as), stress singularity effect",

author = "Wei Shen and Yan, {Ren Jun} and Nigel Barltrop and Ping Yang and Liu, {En Qian} and Kai Qin",

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T1 - Stress field analysis of 135-degree sharp corners based on notch stress strength theory

AU - Shen, Wei

AU - Yan, Ren Jun

AU - Barltrop, Nigel

AU - Yang, Ping

AU - Liu, En Qian

AU - Qin, Kai

PY - 2015/1/1

Y1 - 2015/1/1

N2 - There is a need to better understand the stress singularity effect of welded joints with consideration of the geometrical factors that produce locally high stresses. Based on notch stress strength theory, this paper presents a simple method using the singularity strength 'as'for estimating the stress field distribution at the corner. Validity of this method is further verified by analyzing the stress results for a series of cruciform models. Finally, comparisons are made between the results of this modified method and the corresponding N-SIF formula. The results show that the proposed method has the additional advantage in simple and accurate stress estimation for welded joints. Key words:

AB - There is a need to better understand the stress singularity effect of welded joints with consideration of the geometrical factors that produce locally high stresses. Based on notch stress strength theory, this paper presents a simple method using the singularity strength 'as'for estimating the stress field distribution at the corner. Validity of this method is further verified by analyzing the stress results for a series of cruciform models. Finally, comparisons are made between the results of this modified method and the corresponding N-SIF formula. The results show that the proposed method has the additional advantage in simple and accurate stress estimation for welded joints. Key words:

KW - 135 degree sharp corner

KW - notch-stress intensity factor (N-SIF)

KW - singularity strength (as)

KW - stress singularity effect

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DO - 10.3969/j.issn.1007-7294.2015.03.005

M3 - Article

AN - SCOPUS:84926638877

SN - 1007-7294

VL - 19

SP - 273

EP - 283

JO - Journal of Ship Mechanics

JF - Journal of Ship Mechanics

IS - 3

ER -

Stress field analysis of 135-degree sharp corners based on notch stress strength theory

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Keywords

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