Research of stress assessment for the 135-degree sheet corner based on singularity strength theory

Song S. Gao; Li L. Xu; Dazheng D. Wang; Nigel D P N.D.P. Barltrop

doi:10.3963/j.issn.1671-4431.2013.12.015

Research of stress assessment for the 135-degree sheet corner based on singularity strength theory

Song S. Gao, Li L. Xu, Dazheng D. Wang, Nigel D P N.D.P. Barltrop

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

4 Citations (Scopus)

Abstract

This paper will research the singularity strength theory to stress distribution of a 135-degree sheet corner which bases on notch stress intensity factor (N-SIF) theory. The N-SIF formula is simplified through singularity strength 'as' which is related to structure size. Numerical simulations by ANSYS and regression analysis by MathCAD are done for a number of cases. Finally a simple assessment algorithms and the empirical formula for the notch stress are proposed and verified. The results can be used for structural strength and fatigue analysis.

Original language	English
Pages (from-to)	72-79
Number of pages	8
Journal	Wuhan Ligong Daxue Xuebao/Journal of Wuhan University of Technology
Volume	35
Issue number	12
DOIs	https://doi.org/10.3963/j.issn.1671-4431.2013.12.015
Publication status	Published - 1 Dec 2013

Keywords

notch-stress intensity factor
singularity
singularity strength
stress distribution

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10.3963/j.issn.1671-4431.2013.12.015

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abstract = "This paper will research the singularity strength theory to stress distribution of a 135-degree sheet corner which bases on notch stress intensity factor (N-SIF) theory. The N-SIF formula is simplified through singularity strength 'as' which is related to structure size. Numerical simulations by ANSYS and regression analysis by MathCAD are done for a number of cases. Finally a simple assessment algorithms and the empirical formula for the notch stress are proposed and verified. The results can be used for structural strength and fatigue analysis.",

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AU - Gao, Song S.

AU - Xu, Li L.

AU - Wang, Dazheng D.

AU - Barltrop, Nigel D P N.D.P.

PY - 2013/12/1

Y1 - 2013/12/1

N2 - This paper will research the singularity strength theory to stress distribution of a 135-degree sheet corner which bases on notch stress intensity factor (N-SIF) theory. The N-SIF formula is simplified through singularity strength 'as' which is related to structure size. Numerical simulations by ANSYS and regression analysis by MathCAD are done for a number of cases. Finally a simple assessment algorithms and the empirical formula for the notch stress are proposed and verified. The results can be used for structural strength and fatigue analysis.

AB - This paper will research the singularity strength theory to stress distribution of a 135-degree sheet corner which bases on notch stress intensity factor (N-SIF) theory. The N-SIF formula is simplified through singularity strength 'as' which is related to structure size. Numerical simulations by ANSYS and regression analysis by MathCAD are done for a number of cases. Finally a simple assessment algorithms and the empirical formula for the notch stress are proposed and verified. The results can be used for structural strength and fatigue analysis.

KW - notch-stress intensity factor

KW - singularity

KW - singularity strength

KW - stress distribution

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JF - Wuhan Ligong Daxue Xuebao/Journal of Wuhan University of Technology

IS - 12

ER -

Research of stress assessment for the 135-degree sheet corner based on singularity strength theory

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Keywords

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