Experimental analysis of the plastic CTOD to characterize the variable amplitude fatigue crack growth in Grade 2 titanium samples
Source abstract
Abstract
In this paper, the plastic component of the crack-tip opening displacement (CTODp) is experimentally evaluated to characterize the fatigue crack growth behavior in a Grade 2 titanium sample under single overload with constant amplitude loading conditions. The CTOD measurements were performed with the 2D-Digital Image Correlation (DIC) technique. The experimental results show a linear correlation between CTODp and fatigue crack growth rates, suggesting the independence of this relationship to load-interaction effects. Therefore, this study demonstrates that the CTODp can be a suitable crack-driving parameter to study crack propagation behavior under variable amplitude loading. Furthermore, it suggests that the fatigue crack growth process is primarily caused by cyclic plastic deformation.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Fatigue and fracture mechanics · Ultrasonics and Acoustic Wave Propagation · Non-Destructive Testing Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (46)
Show source-provided references
1. Rice · 1966
2. Elber · 1971
3. Delay effects in fatigue crack propagation
4. Overload retardation in a structural steel10.1111/j.1460-2695.1987.tb00464.x ↗
5. The effect of sheet thickness on fatigue crack retardation in 2024–T3 aluminum alloy10.1016/0013-7944(75)90026-0 ↗
6. On the mechanisms and behaviour of overload retardation in AISI 304 stainless steel10.1016/0142-1123(93)90175-P ↗
7. Analysis of overload effects and related phenomena10.1016/S0142-1123(99)00094-8 ↗
8. Fatigue crack closure: a review of the physical phenomena10.1111/ffe.12578 ↗
9. Paris · 1963
10. Kujawski · 2020 · 4959
11. Revisiting classical issues of fatigue crack growth using a non-linear approach10.3390/ma13235544 ↗
12. Challenging the “ΔKeff is the driving force for fatigue crack growth” hypothesis10.1016/j.ijfatigue.2020.105577 ↗
13. On assumptions associated with ΔKeff and their implications on FCG predictions10.1016/j.ijfatigue.2005.07.020 ↗
14. Role of crack tip plasticity in fatigue crack growth10.1080/01418610108214441 ↗
15. Effect of crack closure on non-linear crack tip parameters10.1016/j.ijfatigue.2014.10.001 ↗
16. Dislocation-based model of plasticity and roughness-induced crack closure10.1016/j.ijfatigue.2011.11.016 ↗
17. Effect of circular holes on the ratchet limit and crack tip plastic strain range in a centre cracked plate10.1016/j.engfracmech.2011.05.004 ↗
18. Plastic zone size in fatigue cracking10.1016/0308-0161(95)00066-6 ↗
19. Elastic–plastic finite element analysis and experimental study of short and long fatigue crack growth10.1016/S0013-7944(01)00047-9 ↗
20. A description of fatigue crack growth in terms of plastik work10.1016/0013-7944(83)90169-8 ↗
21. A total dissipated energy theory of fatigue crack growth in ductile solids10.1016/S0142-1123(02)00073-7 ↗
22. The influence of metallurgical structure on the mechanisms of fatigue crack propagation
23. Crack extension by alternating shear10.1016/0013-7944(70)90008-1 ↗
24. The geometry of slip processes at a propagating fatigue crack—II10.1016/0001-6160(74)90072-8 ↗
25. On fatigue crack growth in ductile materials by crack–tip blunting10.1016/j.jmps.2004.02.007 ↗
26. Fatigue crack closure: From LCF to small scale yielding10.1016/j.ijfatigue.2012.02.016 ↗
27. The influence of cross-sectional thickness on fatigue crack growth10.1046/j.1460-2695.1999.00176.x ↗
28. A crack propagation criterion based on ΔCTOD measured with 2D-digital image correlation technique10.1111/ffe.12153 ↗
29. A unified model for the fatigue crack growth rate in variable stress ratio10.1111/j.1460-2695.2008.01315.x ↗
30. A numerical analysis of CTOD in constant amplitude fatigue crack growth10.1016/j.tafmec.2016.08.015 ↗
31. Fatigue crack growth modelling based on CTOD for the 7050–T6 alloy10.1111/ffe.12582 ↗
32. Characterisation of fatigue crack growth using digital image correlation measurements of plastic CTOD10.1016/j.tafmec.2019.03.009 ↗
33. Plastic CTOD as fatigue crack growth characterising parameter in 2024–T3 and 7050–T6 aluminium alloys using DIC10.1111/ffe.13210 ↗
34. Characterization of discontinuous crack closure behavior after the application of a single overload cycle10.1016/j.tafmec.2021.103028 ↗
35. Application of digital image correlation to the investigation of crack closure following overloads10.1016/j.proeng.2010.03.112 ↗
36. Detecting fatigue crack closure and crack growth delays after an overload using DIC measurements
37. Experimental determination of the reversed plastic zone size around fatigue crack using Digital Image Correlation
38. International Digital Image Correlation Society · 2018
39. Freire JdF. Determining SIFs using DIC considering crack closure and blunting
40. A study of overload effect on fatigue crack propagation using EBSD, FIB–DIC and FEM methods10.1016/j.engfracmech.2016.04.034 ↗
41. Assessment of crack tip plastic zone size and shape and its influence on crack tip shielding10.1111/ffe.12436 ↗
42. Crack-tip plastic zone size and shape via DIC
43. Effect of load blocks on fatigue crack growth10.1016/j.ijfatigue.2022.107001 ↗
44. Revisiting fatigue crack growth in various grain size regimes of Ni10.1016/j.msea.2015.08.071 ↗
45. A fatigue crack driving force parameter with load ratio effects10.1016/S0142-1123(01)00158-X ↗
46. Numerical modelling of fatigue crack closure and its implication on crack front curvature using ΔCTODp