Computational Schemes for Integrity Analyses of Fuselage Panels in Aging Airplanes

This paper reviews some simplified computational strategies for the integrity analyses of fuselage panels in aging airplanes. The topics covered include: (i) a “direct stiffness” method for stiffened panels (with fastener flexibility being accounted for) with multiple cracks, using the alternating technique, (ii) MSD near a row of fastener holes, (iii) analysis of cracks with bonded repair patches, (iv) weight functions for multiple cracks, and (v) bulging near crack-tips in pressurized fuselages, and equivalent domain integral methods for computing fracture parameters for bulged cracks.

[1]  T Swift,et al.  Fracture Analysis of Stiffened Structure , 1984 .

[2]  Rhys Jones,et al.  Bonded repairs to surface flaws , 1984 .

[3]  S. Atluri,et al.  CALCULATION OF FRACTURE MECHANICS PARAMETERS FOR AN ARBITRARY THREE-DIMENSIONAL CRACK, BY THE ‘EQUIVALENT DOMAIN INTEGRAL’ METHOD , 1987 .

[4]  Satya N. Atluri,et al.  Computational methods in the mechanics of fracture , 1987, International Journal of Fracture.

[5]  T. Swift,et al.  The Effects of Fastener Flexibility and Stiffener Geometry on the Stress Intensity in Stiffened Cracked Sheet , 1974 .

[6]  Satya N. Atluri,et al.  On Some Recent Advances in Computational Methods in the Mechanics of Fracture , 2013 .

[7]  Satya N. Atluri,et al.  GENERATION AND PROPAGATION ANALYSES OF HIGH-STRAIN-RATE DYNAMIC CRACK PROPAGATION IN A VISCO-PLASTIC SOLID , 1989 .

[8]  S. Atluri.  ALTERNATE STRESS AND CONJUGATE STRAIN MEASURES, AND MIXED VARIATIONAL FORMULATIONS INVOLVING RIGID ROTATIONS, FOR COMPUTATIONAL ANALYSES OF FINITELY DEFORMED SOLIDS, WITH APPLICATION TO PLATES AND SHELLS-I , 1984 .

[9]  G. C. Sih,et al.  Complex variable methods in elasticity , 1971 .

[10]  David Broek,et al.  Prospects of Fracture Mechanics , 1974 .

[11]  Satya N. Atluri,et al.  Analysis of Interaction Behavior of Surface Flaws in Pressure Vessels , 1986 .

[12]  Satya N. Atluri,et al.  Analytical solution for embedded elliptical cracks, and finite element alternating method for elliptical surface cracks, subjected to arbitrary loadings , 1983 .

[13]  H. Vlieger.  Damage Tolerance of Stiffened-Skin Structures: Prediction and Experimental Verification , 1986 .