Applicability of the ASTM compliance offset method to determine crack closure levels for structural steel

The usefulness of the compliance offset method recommended by the ASTM standard to estimate crack closure in structural steel is examined. The local and remote compliance data generated in fatigue tests on a structural steel conducted under a variety of loading conditions enabled to choose an optimal strain gauge positioning and most appropriate offset criterion values for the original compliance offset method and for its modified (normalized) version. The quality of the closure measurements is assessed through checking the ability of the resulting effective stress intensity factors to account for the observed effects of the loading conditions on the fatigue crack growth rates.

[1]  J. Schijve,et al.  Some formulas for the crack opening stress level , 1980 .

[2]  R. Pippan.  The sensitivity to measure crack closure with strain gauges near the crack tip , 1988 .

[3]  R. Pippan,et al.  CRACK CLOSURE: A CONCEPT OF FATIGUE CRACK GROWTH UNDER EXAMINATION , 1997 .

[4]  B. Hillberry,et al.  A Method for Determining Crack Opening Load from Load-Displacement Data , 1988 .

[5]  J. Schijve,et al.  FATIGUE CRACK CLOSURE MEASUREMENT OF 2024-T3 SHEET SPECIMEN , 1994 .

[6]  Norman A. Fleck,et al.  Influence of Stress State on Crack Growth Retardation , 1988 .

[7]  E. Wolf.  Fatigue crack closure under cyclic tension , 1970 .

[8]  I. Sinclair,et al.  Systematic assessment and validation of compliance-based crack closure measurements in fatigue , 2000 .

[9]  Andrzej Skorupa,et al.  Experimental results and predictions on fatigue crack growth in structural steel , 2005 .

[10]  Norman A. Fleck,et al.  An investigation of fatigue crack closure , 1984 .

[11]  W. Geary,et al.  SOME ASPECTS OF FATIGUE CRACK GROWTH RETARDATION BEHAVIOUR FOLLOWING TENSILE OVERLOADS IN A STRUCTURAL STEEL , 1996 .

[12]  Chow-Shing Shin,et al.  On the mechanisms and behaviour of overload retardation in AISI 304 stainless steel , 1993 .

[13]  M. Skorupa.  Load interaction effects during fatigue crack growth under variable amplitude loading : A literature review. Part I : Empirical trends , 1998 .

[14]  Stefano Beretta,et al.  An algorithm for evaluating crack closure from local compliance measurements , 2002 .

[15]  A. Ohta,et al.  Fatigue crack closure over the range of stress ratios from −1 to 0.8 down to stress intensity threshold level in HT80 steel and SUS304 stainless steel , 1978, International Journal of Fracture.

[16]  M. Skorupa,et al.  Load interaction effects during fatigue crack growth under variable amplitude loading—a literature review. Part II: qualitative interpretation , 1999 .

[17]  Tetsuro Shiraishi,et al.  FATIGUE CRACK GROWTH AND CLOSURE AT HIGH STRESS RATIOS , 1995 .

[18]  Norman A. Fleck,et al.  EFFECT OF SPECIMEN GEOMETRY ON FATIGUE CRACK GROWTH IN PLANE STRAIN—II. OVERLOAD RESPONSE , 1990 .

[19]  Hans Albert Richard,et al.  Fatigue crack growth under variable amplitude loading Part II: analytical and numerical investigations , 2006 .

[20]  J. Schijve,et al.  Fatigue crack growth in the aluminium alloy D16 under constant and variable amplitude loading , 2004 .