Crack propagation in welded stiffened panels

Abstract A series of experiments was conducted to characterize the propagation of large fatigue cracks in welded stiffened panels. The stiffened panels were incorporated into large box beams loaded in four-point bending. The experiments confirmed that cracks propagate in a stable manner in redundant stiffened panels. The experiments showed the effects of welding residual stress, the presence of transverse butt welds, and stiffener details such as drain holes on the growth rate of these cracks. The type of structural steel did not have a significant effect, as expected.

[1]  P Alman,et al.  THE INTERNATIONAL LOAD LINE CONVENTION: CROSSROAD TO THE FUTURE , 1992 .

[2]  Merrison,et al.  INFLUENCE ON STRENGTH OF COMPRESSION PANEL OF STIFFENER SECTION, SPACING AND WELDED CONNECTION. , 1977 .

[3]  Robert J. Dexter,et al.  Fatigue and Fracture , 1999 .

[4]  J. Fisher,et al.  FATIGUE AND FRACTURE IN STEEL BRIDGES , 1984 .

[5]  S. J. Maddox,et al.  Fatigue strength of welded structures , 1991 .

[6]  D. Faulkner.  A REVIEW OF EFFECTIVE PLATING TO BE USED IN THE ANALYSIS OF STIFFENED PLATING IN BENDING AND COMPRESSION , 1973 .

[7]  L. Tall,et al.  Residual stresses in welded shapes of flame-cut plates in astm a572(50) steel , 1969 .

[8]  D. Faulkner,et al.  Synthesis of welded grillages to withstand compression and normal loads , 1973 .

[9]  Peter B. Keating,et al.  Evaluation of Fatigue Tests and Design Criteria on Welded Details , 1986 .

[10]  Edward L. Bernstein.  Residual stresses in welded plates , 1994 .

[11]  John W. Fisher,et al.  FATIGUE STRENGTH OF STEEL BEAMS WITH WELDED STIFFENERS AND ATTACHMENTS , 1974 .

[12]  C. Poe,et al.  Fatigue Crack Propagation in Stiffened Panels , 1971 .

[13]  John W. Fisher,et al.  Behavior of Long Fatigue Cracks in Cellular Box Beam , 1999 .

[14]  A. Ostapenko,et al.  Tests on longitudinally stiffened plate panels (effect of residual stresses and rotational restraint by stiffeners), July 1962 , 1962 .

[15]  A Thayamballi,et al.  LOCAL CRACKING IN SHIPS - CAUSES, CONSEQUENCES, AND CONTROL , 1997 .

[16]  James M. Ricles,et al.  Measured Imperfections and Their Effects on Strength of Component Plates of a Prototype Double Hull Structure , 1995 .

[17]  Guk-Rwang Won.  American Society for Testing and Materials , 1987 .

[18]  Alfred M. Freudenthal,et al.  Fatigue and fracture mechanics , 1973 .

[19]  Alexis Ostapenko,et al.  Tests on longitudinally stiffened plate panels with fixed ends, Strain and Dial Gage Readings, supplement to F.L. report no. 248.12, July 1964 , 1964 .

[20]  William R. Osgood.  Residual stresses in metals and metal construction , 1954 .

[21]  Robert H. Vroman.  An Analysis Into the Uncertainty of Stiffened Panel Ultimate Strength. , 1995 .

[22]  P. C. Paris,et al.  A Critical Analysis of Crack Propagation Laws , 1963 .

[23]  M R Horne,et al.  THE STRENGTH OF STRAIGHTENED WELDED STEEL STIFFENED PLATES , 1976 .

[24]  Rj Dexter,et al.  Predicting Extensive Stable Tearing in Structural Components , 1999 .

[25]  L Tall,et al.  RESIDUAL STRESSES IN THICK WELDED PLATES , 1972 .