scholarly journals Multiscale fatigue crack growth modelling for welded stiffened panels

2014 ◽  
Vol 37 (9) ◽  
pp. 1043-1054 ◽  
Author(s):  
Ž. Božić ◽  
S. Schmauder ◽  
M. Mlikota ◽  
M. Hummel
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Growth Modelling ◽  
Stiffened Panels

Fatigue crack growth modelling of Fão Bridge puddle iron under variable amplitude loading

2020 ◽  
Vol 136 ◽  
pp. 105588 ◽  
Author(s):  
José Correia ◽  
Hermes Carvalho ◽  
Grzegorz Lesiuk ◽  
António Mourão ◽  
Lucas Figueiredo Grilo ◽  
...  
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Growth Modelling ◽  
Variable Amplitude Loading ◽  
Variable Amplitude

Fatigue Crack Growth in Integrally Stiffened Panels Joined Using Friction Stir Welding and Swept Friction Stir Spot Welding

2008 ◽  
Vol 5 (4) ◽  
pp. 101568 ◽  
Author(s):  
Dwight A. Burford ◽  
Bryan M. Tweedy ◽  
Christian A. Widener ◽  
R. W. Neu ◽  
K. R. W. Wallin ◽  
...  
Keyword(s):  
Fatigue Crack ◽  
Friction Stir Welding ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Spot Welding ◽  
Friction Stir Spot Welding ◽  
Stiffened Panels ◽  
Friction Stir ◽  
Integrally Stiffened Panels

Composite Repair of Curved Stiffened Aluminum Panels under Combined Tension and Shear Cyclic Loadings

2012 ◽  
Vol 225 ◽  
pp. 219-224
Author(s):  
Hossein Hosseini-Toudeshky ◽  
Mir Ali Ghaffari ◽  
Bijan Mohammadi
Keyword(s):  
Finite Element ◽  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Initial Crack ◽  
Stiffened Panels ◽  
Crack Trajectory ◽  
Aluminum Panels ◽  
Crack Growth Modeling ◽  
Tension Loading

In this study, finite element method is used to investigate the fracture analyses, crack growth trajectory and fatigue life of curved stiffened panels repaired with composite patches subjected to combined tension and shear cyclic loadings. For this purpose, 3-D finite element modeling are performed for consideration of real 3-D crack-front in general mixed-mode conditions. Contact elements are used between the crack surfaces on two crack sides to prevent interferences of crack surfaces and a complementary program was developed to handle the automatic fatigue crack growth modeling. The effects of various patch layups and shear-tension loading ratios on fracture parameters of the aluminum panel are investigated. It is shown that in low shear to tension ratios like 0.4, the patch layup of [90]4 (perpendicular to the initial crack) is more efficient than the patch with layups angle along the tension loading. As the shear to tension ratio increases, effect of patch layups with orientations of almost perpendicular to the crack trajectory on fatigue crack growth life is increased comparing with the patch layups parallel to the tension orientation like [90]4.

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