A New Method for Analyzing Surface Cracks

Zeng Zhao-jing; Dai Shu-he

Article Contents

Article Navigation > Applied Mathematics and Mechanics > 1993 > 14(8): 747-752

Zeng Zhao-jing, Dai Shu-he. A New Method for Analyzing Surface Cracks[J]. Applied Mathematics and Mechanics, 1993, 14(8): 747-752.

Citation:

Zeng Zhao-jing, Dai Shu-he. A New Method for Analyzing Surface Cracks[J]. Applied Mathematics and Mechanics, 1993, 14(8): 747-752.

Citation:

Zeng Zhao-jing, Dai Shu-he. A New Method for Analyzing Surface Cracks[J]. Applied Mathematics and Mechanics, 1993, 14(8): 747-752.

PDF( 416 KB)

A New Method for Analyzing Surface Cracks

Department of Chemical Mechanical Engineering, Nanjing Institute of Chemical Technology, Nanjing

Received Date: 1992-07-24
Publish Date: 1993-08-15

Abstract

Abstract

The authors have developed a new line-spring boundary element method in the present paper,which combines the advantage of the line-spring model with that of the boundary element method.This method reduces the three-dimension problem of the surface cracks into a quasi-one-dimension problem and can be used to analyze the surface cracked plate under various loading conditions.In this paper theoretical analyses and numerical verifications are carried out.The calculated results are reported,which indicate that the present method is efficient and can be used to analyze the surface crack problem on a personal computer.
- line spring model,
- boundary element method,
- surface crack,
- stress intensity factor

FullText(HTML)

References(14)

References

[1]	Rice,J.K.and N.Levy,The part-through surface crack in an elastic plate,ASME Journal of Applied Mechanics,39(1972),185-194.
[2]	Delate,F.and F.Erdogan,Line-spring model for surface cracks in a Reissner plate,International Journal of Engineering and Science,19(1981),1331-1340.
[3]	Parks,D.M.,The inelastic line-spring for elastic-plastic fracture mechanics parameters for surface-cracked plates and shells,ASME Journal of Pressure Vessel Technology,103(1981),246-254.
[4]	Parks,D.M.and C.S.White,Elastic-plastic line-spring finite elements for surfacecracked plates and shells,ASME Journal of Pressure Vessel Technology,104(1982),287-292.
[5]	German,M.D.,V.Kumar and H.G.De Lorenzi,Analysis of surface cracks in plates and shells using the line-spring model and ADINA,Computers & Structures,17(1983),881-890.
[6]	Kumar,V.,M.D.German and B.I.Schumacher,An analysis of elastic surface cracks in cylinders using the line-spring model and the shell finite element method,ASME Journal of Pressure Vessel Technology,107(1985)403-411.
[7]	Miyoshi,T.,M.Shiratori and Y.Yoshida,Analysis of J-integral and crack growth for surface cracks by line-spring method,ASME Journal of Pressure Vessel Technology,108(1986),305-311.
[8]	De Langre,E.and L.Ebersolt,The use of a new line-spring shell element for elastic surface crack analysis,Fatigue and Fracture of Engineering Materials and Structures,10(1987),153-167.
[9]	曾昭景,浅长型表面裂纹问题的理论与试验研究,南京化工学院博士学位论文(1990).
[10]	Rooke,D.P.and D.J.Cartwight,Compendium of Stress Intensity Factors,H.M.S.O.,London(1976).
[11]	Wang,Y.C.,et al.,SBEM for Reissner's plate and its application to foundation plate,Boundary Elements,IX,Ed.by C.A.Brebbia,Vol.2,Springer-Verlag(1987),111-125.
[12]	Brebbia,C.A.,The boundary Element Method for Engineers,Pentech Press,London(1987).
[13]	Raju,I.S.and J.C.Newman,Stress-intensity factors for a wide range of semi-elliptical surface cracks in finite thickness plates,Engineering Fracture Mechanics,11(1979),817-829.
[14]	中国航空研究院,《应力强度因子手册》,科学出版社,北京(1981).