论文信息 - Analysis of the Cold-Working Process on Holes Containing Preexisting Cracks

Analysis of the Cold-Working Process on Holes Containing Preexisting Cracks

Cold working of fastener holes on aircraft has been proven to be an effective method to extend the fatigue service life. This process is being applied to aging aircraft that may have existing cracks at the time of cold working. The effectiveness of the cold working in the presence of several sizes of corner cracks is analytically assessed. A three-dimensional finite element analysis is performed to calculate the stresses at the crack tips with and without remotely applied load. It is found that cold working is effective to a varying degree for cracks as deep as 0.6 of the thickness.

Jidong Kang | W. Steven Johnson

[1] F. Hauser,et al. Deformation and Fracture Mechanics of Engineering Materials , 1976 .

[2] Jidong Kang,et al. Three-Dimensional Finite Element Analysis of the Cold Expansion of Fastener Holes in Two Aluminum Alloys , 2002 .

[3] Cgc Poussard,et al. Analytical and finite element predictions of residual stresses in cold worked fastener holes , 1995 .

[4] X. B. Lin,et al. Stress intensity factors for corner cracks emanating from fastener holes under tension , 1999 .

[5] D. L. Ball,et al. ELASTIC‐PLASTIC STRESS ANALYSIS OF COLD EXPANDED FASTENER HOLES , 1995 .

[6] A. Nádai. Theory of flow and fracture of solids , 1950 .

[7] Mw Ozelton,et al. Fatigue Life Improvement by Cold Working Fastener Holes in 7050 Aluminum , 1986 .

[8] G. S. Wang. An elastic-plastic solution for a normally loaded center hole in a finite circular body , 1988 .

[9] Guo Wanlin. Elastic-plastic analysis of a finite sheet with a cold-worked hole , 1993 .

[10] R. G. Forman,et al. Elastic-plastic analysis of an infinite sheet having a circular hole under pressure , 1975 .

[11] R. Hill. The mathematical theory of plasticity , 1950 .

[12] Lf Impellizzeri,et al. Fatigue Analysis of Cold-Worked and Interference Fit Fastener Holes , 1977 .

[13] Cgc Poussard,et al. A finite element simulation of the cold working process for fastener holes , 1997 .

[14] A New Method of Predicting Residual Stresses in Autofrettaged Gun Barrels. , 1986 .