Computation of stress intensity factors by the compliance approach

• Autorzy: Hamoush S. A. , Abdel-Fattah H.
• Języki publikacji: EN

Abstrakty

EN

A numerical method based on compliance approach is presented for analyzing an isotropic homogeneous sheet enclosing a crack. The method calculates the strain energy release rate and determines the stress intensity factors K_{I} and K_{II}. This method is suitable for any load combination in pure mode I, pure mode II and mix mode loading. A simple and efficient solution approach is developed in which the strain energy release rate is calculated by combining the finite element method with the fundamental relationships in fracture mechanics. The solution technique converges to accurate results for a small crack extension of the finite element mesh. The solution approach is also shown to be suited for separating the mode I and mode II stress intensity factors for a mixed mode loading. Numerical examples are presented to demonstrate the accuracy of the proposed approach.

Słowa kluczowe

EN

stress; compliance approach

PL

naprężenie; podatność zbliżania

• Wydawca: Instytut Podstawowych Problemów Techniki PAN
• Czasopismo: Computer Assisted Mechanics and Engineering Sciences
• Rocznik: 2000
• Tom: Vol. 7, No. 1
• Strony: 81--90
• Opis fizyczny: Bibliogr. 7 poz., rys., wykr.

Twórcy

autor

Hamoush S. A.

• North Carolina A&T State University, Department of Architectural Engineering, Greensboro, NC 27411 USA

autor

Abdel-Fattah H.

• Department of Civil Engineering, Kuwait University, Kuwait

Bibliografia

• [1] J. W. Eischen. Improve method for computing the J2 Integral. Engrg. Fract. Mech., 26: 691, 1987.
• [2] S. A. Hamoush, S.H. Ahmad. Mode I and mode II stress intensity factors for interfacial cracks in bi-material media. Engrg. Fract. Mech., 33(3): 421, 1989.
• [3] S. A. Hamoush, M.R. Salami. Analyzing a mixed mode plane problem by using Jk integrals. Int. J. Fatigue, 12(5): 441, 1990.
• [4] S. A. Hamoush, M.R. Salami. Stiffness derivative technique to determine mixed mode stress intensity factors for rectilinear anisotropic solids. Engrg. Fract. Mech., 44(2): 297, 1993.
• [5] A. G. Hermann, G. Hermann. On energy release for a plane crack. ASME J Appl. Mech., 48: 52, 1981.
• [6] H. R. Irwin. Analysis of stress and strains near the end of a crack transversing a plate. ASME J. Appl. Mech., 24: 361, 1957.
• [7] H. Tada, P.C. Paris, G.R. Irwin. The Stress Analysis of Cracks Handbook. Del Research, 1977.