Plasticity-induced crack closure identification during fatigue crack growth in AA2024-T3 by using high-resolution digital image correlation
Source abstract
Abstract
Fatigue crack growth in ductile materials is primarily driven by the interaction between damaging and shielding mechanisms. In the Paris regime, the predominant mechanism for retardation is plasticity-induced crack closure (PICC). However, some of the mechanisms behind this phenomenon are still unclear. Identifying and separating the three-dimensional aspect from other shielding aspects during experiments is extremely complex. In this paper, we analyze the crack opening kinematics based on local crack opening displacement measurements in both 2D high-resolution digital image correlation data and 3D finite element simulations . The results confirm that the crack opening stress intensity factor K op differs along the crack path. we present a new method to determine K op at the crack front allowing to identify PICC as the predominant shielding mechanism in fatigue crack growth experiments. Furthermore, this work contributes to the discussion on the damage-reducing effect of PICC, since we find that the influence on fatigue damage in the plastic zone remains negligible when the crack is closed and crack surface contact is directed towards the surface.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Fatigue and fracture mechanics · Non-Destructive Testing Techniques · Ultrasonics and Acoustic Wave Propagation
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (52)
Show source-provided references
1. Mechanisms of fatigue-crack propagation in ductile and brittle solids10.1023/A:1018655917051 ↗
2. The significance of crack closure in fracture mechanics
3. Mechanisms of fatigue crack growth - a critical digest of theoretical developments10.1111/ffe.12392 ↗
4. Fatigue crack closure: a review of the physical phenomena10.1111/ffe.12578 ↗
5. Yielding of steel sheets containing slits10.1016/0022-5096(60)90013-2 ↗
6. Newmann · 1981 · 53
7. Finite element analysis of plasticity-induced fatigue crack closure: an overview10.1016/S0013-7944(03)00099-7 ↗
8. Mechanical reasons for plasticity-induced crack closure under plane strain conditions10.1046/j.1460-2695.1998.00131.x ↗
9. Asymmetric crack wack plasticity - a reason for roughness induced crack closure
10. Three-dimensional fatigue crack closure numerical modelling: Crack growth scheme10.1016/j.tafmec.2020.102623 ↗
11. Numerical modelling of three-dimensional fatigue crack closure: Plastic wake simulation10.1016/j.ijfatigue.2019.105344 ↗
12. A methodology for simulating plasticity induced crack closure and crack shape evolution based on elastic–plastic fracture parameters10.1016/j.engfracmech.2020.107412 ↗
13. Fatigue crack front curvature due to the plasticity-induced crack closure
14. Towards three dimensional aspects of plasticity-induced crack closure: A finite element simulation10.1016/j.ijfatigue.2022.107092 ↗
15. ASTM E647-15 standard test method for measurement of fatigue crack growth rates, ASTM.
16. Compliance methods for measurement of crack length
17. Strain-gauge compliance measurements near the crack tip for crack closure evaluation: Applicability and accuracy10.1016/j.engfracmech.2006.04.008 ↗
18. A review of crack closure measurement by compliance technique and the normalized-extended ASTM method as a currently most refined, practical and simple one10.1016/j.proeng.2010.03.084 ↗
19. Full–field characterisation of crack tip deformation and fatigue crack growth using digital image -correlation—a review10.1111/ffe.12859 ↗
20. Determination of displacements using an improved digital correlation method10.1016/0262-8856(83)90064-1 ↗
21. Investigation of fatigue crack closure using multiscale image correlation experiments10.1016/j.engfracmech.2009.08.002 ↗
22. Full-field experimental and numerical characterisation of a growing fatigue crack in a stainless steel10.1016/j.ijfatigue.2019.105449 ↗
23. A novel parameter to evaluate fatigue crack closure: Crack opening ratio10.1016/j.ijfatigue.2020.105859 ↗
24. Measurement of fatigue crack deformation on the macro- and micro-scale: Uniform and non-uniform loading10.1016/j.ijfatigue.2016.02.032 ↗
25. Full-field characterization of a fatigue crack: Crack closure revisited
26. Fatigue crack closure: A myth or a misconception?10.1111/ffe.13112 ↗
27. On 50 years of fatigue crack closure dispute10.1111/ffe.14034 ↗
28. Characterisation of fatigue crack growth using digital image correlation measurements of plastic CTOD
29. Plastic CTOD as fatigue crack growth characterising parameter in 2024–T3 and 7050–T6 aluminium alloys using DIC10.1111/ffe.13210 ↗
30. Numerical modelling of fatigue crack closure and its implication on crack front curvature using ΔCTODp10.1016/j.ijfatigue.2023.107570 ↗
31. Fracture and damage mechanics modelling of thin-walled structures – an overview10.1016/j.engfracmech.2007.10.005 ↗
32. Tamarin · 2002
33. Baptista · 2023
34. Effects of stress ratio on plasticity-induced crack closure through three-dimensional advanced numerical finite element models10.1016/j.tafmec.2023.104000 ↗
35. Numerical simulation of plasticity induced crack closure: Indentification and discussion of parameters10.1016/j.engfracmech.2007.12.009 ↗
36. Bauschinger effect of alloys and plasticity–induced crack closure: a finite element analysis10.1046/j.1460-2695.2000.00259.x ↗
37. Numerical analysis of the influence of the last cycle scheme on plasticity induced crack closure10.1016/j.prostr.2019.08.119 ↗
38. A robot-assisted microscopy system for digital image correlation in fatigue crack growth testing10.1007/s11340-023-00964-9 ↗
39. Explainable machine learning for precise fatigue crack tip detection10.1038/s41598-022-13275-1 ↗
40. The effect of out-of-plane motion on 2D and 3D digital image correlation measurements10.1016/j.optlaseng.2008.05.005 ↗
41. Strohmann · 2024
42. Finite element visualization of fatigue crack closure in plane stress and plane strain10.1007/BF00035167 ↗
43. Tri-dimensional numerical modelling of plasticity induced fatigue crack closure10.1016/j.engfracmech.2008.04.024 ↗
44. Distribution of the through-thickness effective stress intensity factor range and its influence on fatigue crack growth rate curves10.1016/j.tafmec.2022.103374 ↗
45. Sensitivity of numerically modelled crack closure to material
46. The role of plasticity-induced crack closure in the non-propagation prediction of surface defect-initiated cracks near fatigue limit10.1016/j.ijfatigue.2022.107462 ↗
47. Crack front curvature: Influence and effects on the crack tip fields in bi-dimensional specimens10.1016/j.ijfatigue.2012.05.012 ↗
48. Advanced analysis of crack tip plastic zone under cyclic loading10.1016/j.ijfatigue.2016.08.013 ↗
49. Effect of cyclic plastic strain on fatigue crack growth10.1016/j.ijfatigue.2015.06.014 ↗
50. The effect of crack tunneling on crack growth: experiments and CTOA analyses10.1016/S0013-7944(02)00131-5 ↗
51. Crack tip opening angle measurement methods and crack tunneling in 2024-T351 aluminium alloy
52. Numerical modelling of plasticity induced crack closure with rough fracture surfaces10.4028/www.scientific.net/KEM.827.7 ↗