General Digital Picture Processing and Texture Analysis for Photoelasticity

Ouyang Chang; Ye Ning

Article Contents

Article Navigation > Applied Mathematics and Mechanics > 1986 > 7(4): 317-323

Ouyang Chang, Ye Ning. General Digital Picture Processing and Texture Analysis for Photoelasticity[J]. Applied Mathematics and Mechanics, 1986, 7(4): 317-323.

Citation:

Ouyang Chang, Ye Ning. General Digital Picture Processing and Texture Analysis for Photoelasticity[J]. Applied Mathematics and Mechanics, 1986, 7(4): 317-323.

Citation:

Ouyang Chang, Ye Ning. General Digital Picture Processing and Texture Analysis for Photoelasticity[J]. Applied Mathematics and Mechanics, 1986, 7(4): 317-323.

PDF( 3064 KB)

General Digital Picture Processing and Texture Analysis for Photoelasticity

Department of Applied Mechanics, Fudan University, Shanghai

Received Date: 1985-04-30
Publish Date: 1986-04-15

Abstract

Abstract

In this paper,a general digital picture processing and texture analysis for photoelasticity is developed.Overcoming some defects of references [2] and [3],it presents an effective method to analyse fringe patterns of the photoelasticity.By means of the trigonometric function relationship between the light intensity land the image fringe order N,the equations of the fringe order N on brightness Z are deduced,and the mechanical parameters are thus obtained.We established a system of sigital picture processing and texture analysis for photoelasticity,which is called OYC-1 system.Finally,this system is checked with an example.It is found that the differences between measured results and the theoretical values are within 2.3 percent.

FullText(HTML)

References(7)

References

[1]	朱涵,关于任意边界缺口或裂纹群问题的一类解法(Ⅱ)——缺口群的计算,应用数学5,2(1984),153-158.
[2]	Müller,R.K.and L.R.Saackel,Complete automatic analysis of photoelastic fringes,Exp.Mech.,19,7,(1979),245-251.
[3]	Voloshin,A.S.and C.P.Burger,Half-fringe photoelasticity:A new approach to whole-field stress analysis Exp.Mech.,23,3(1983),304-313.
[4]	Rosenfeld,A.and A.C.Kak,Digital Picture Processing,Academic Press(1976).
[5]	Gonzalez,R.C.and P.Wintz,Digital Image Processing,Addison-Wesley Publishing Company(1977).
[6]	Yatagal,T.and et al.,Automatic fringe analysis using digital image processing techniques,Opt.Eng.,21,3(1982),432-435.
[7]	欧阳曾、叶宁,光弹性力学图象的条纹分析.《全国高教系统第六次人工智能学术讨论会文集》,成都,2,6(1985).