Grain size effects on notch sensitivity
Source abstract
Abstract
Abstract This work presents experimental results on the fatigue behavior of cracks growing from circular notches under axial loading conditions for a very wide range of notch size to grain size ratios, including cases where the notch size is of the order of, or even smaller, than the grain size. Notch sensitivity is evaluated and the well-known dependence on grain size is clearly demonstrated. It was found that for the same specimen geometry and loading conditions, the influence of the stress concentration is directly dependent on the relationship between the notch size and the grain size.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Fatigue and fracture mechanics · Mechanical Behavior of Composites · Metal Forming Simulation Techniques
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (49)
Show source-provided references
1. Neuber · 1937
2. Application of stress concentration factors in design
3. Notch sensitivity
4. Peterson · 1974
5. Geometrical effects in fatigue: a unifying theoretical model10.1016/S0142-1123(99)00007-9 ↗
6. Taylor · 2007
7. A study of size effect and notch sensitivity in fatigue tests of steel
8. Two and three dimensional cases of stress concentration and comparison with fatigue tests
9. Kuhn P, Hardraht HF. An engineering method for estimating notch-size effect in fatigue tests on steel. NACA TN 2805; 1952.
10. Langer BF. Application of stress concentration factors. Bettis Tech Rev WAPD-BT-18; 1960.
11. Rice · 1997
12. Fundamentals of modern fatigue analysis for design
13. Short fatigue crack growth behaviour in al 2024 and al 7475
14. A comparison of long and short fatigue crack growth in high strength alluminum alloy
15. Effects of microstructure on long and short crack in nickel-base superalloys10.1179/030634584790419881 ↗
16. The effect of texture and grain size on short fatigue crack growth rates
17. Effect of fracture surface roughness on growth of short fatigue crack10.1007/BF02643749 ↗
18. The growth of small fatigue cracks in 7075-T6 aluminum
19. The effect of environment on the growth of small fatigue cracks10.1111/j.1460-2695.1983.tb01136.x ↗
20. The influence of microstructure on the growth of small fatigue cracks10.1111/j.1460-2695.1985.tb01201.x ↗
21. Propagation and non-propagation of short fatigue cracks at a sharp notch10.1111/j.1460-2695.1983.tb00347.x ↗
22. Fatigue crack propagation behaviour of short cracks; the effect of microestructure10.1111/j.1460-2695.1981.tb01116.x ↗
23. Notch sensitivity and size effects described by a short crack propagation model
24. Fatigue crack growth threshold conditions at notches. Part I: theory10.1046/j.1460-2695.2000.00257.x ↗
25. Fatigue crack growth threshold conditions at notches. Part II: Generalization and application to experimental results10.1046/j.1460-2695.2000.00258.x ↗
26. A micromechanical approach to fatigue in small notches10.1111/j.1460-2695.2005.00942.x ↗
27. Influence of r ratio and stick zone eccentricity on the prediction of the fretting fatigue limit with spherical contact10.1016/j.ijfatigue.2006.10.015 ↗
28. A relation between the critical alternating propagation stress and crack length for mild steel10.1243/PIME_PROC_1959_173_065_02 ↗
29. Application of a microestructural model por predicting notch fatigue limits under mode I loading10.1016/j.ijfatigue.2008.09.009 ↗
30. An analysis of notch-size effects at the fatigue limits10.1520/JTE11081J ↗
31. Lorenzino P. Fatiga en componentes con concentradores de tensión bajo carga en modo I. Ph.D. thesis. Seville University; 2012.
32. Nacked eye observation of microstructurally short fatigue cracks10.1016/j.ijfatigue.2013.07.011 ↗
33. Growth of very long “short cracks” initiated at holes10.1016/j.ijfatigue.2014.03.023 ↗
34. An experimental assessment of grain size affects in the uniaxial straining of thin Al sheet with a few grains across the thickness
35. Effect of specimen thickness on mechanical properties of polycrystalline aggregates with various grain sizes10.1016/0001-6160(79)90120-2 ↗
36. Hall–Petch behaviour of Ni polycristals with a few grains per thickness10.1016/j.matlet.2007.09.069 ↗
37. The size effect on the stress–strain, fatigue and fracture properties of thin metallic foil
38. The variation of resonance frequency in fatigue tests as a tool for in-situ identification of crack initiation and propagation, and for the determination of cracked areas10.1016/j.ijfatigue.2014.08.002 ↗
39. ASTM E739 Standard Statistical analysis of linear or linearized stress-life (S–N) and strain-life (ε–N) fatigue data. Am Soc Testing Mater 2006.
40. The deformation and ageing of mild steel-III discussion of results10.1088/0370-1301/64/9/303 ↗
41. The cleavage strength of polycrystals
42. An alternative model of the blocking of dislocations at grain boundaries10.1080/01418618808204497 ↗
43. Fatigue crack growth modelling by successive blocking of dislocations10.1098/rspa.1992.0067 ↗
44. Fatigue of metallic materials
45. Size effects in materials due to microstructural and dimensional constrains: a comparative review
46. Effects of small defects on fatigue strength of metals10.1016/0142-1123(80)90024-9 ↗
47. Quantitative evaluation of fatigue strength of metals containing various small defects and cracks10.1016/0013-7944(83)90018-8 ↗
48. Existence of the coaxing effect and effects of small artificial holes on fatigue strength of an aluminum alloy and 70–30 brass10.1007/BF02646837 ↗
49. Murakami · 2002