Analysis of fatigue crack initiation in cyclic microplasticity regime
Source abstract
Abstract
The present work provides description of fatigue crack initiation in metals subjected to cyclic loading within the nominal elastic or initial elastic-plastic regimes next passing to elastic response during cyclic deformation and shake down process. It is assumed that damage growth proceeds due to action of local stress, specified as the sum of mean stress and its fluctuations induced by material inhomogeneities such as grain boundaries, inclusions, cavities, boundary asperities, also due to design notches or holes introduced into the element. The damage growth model is proposed, based on the critical plane concept. The macrocrack initiation then corresponds to a critical value of accumulated damage. The modelling of damage growth is supported by Electronic Speckle Pattern Interferometry (ESPI) apparatus using the coherent laser light. The damage growth effect is analysed by microindentation tests. The fatigue tests are performed for high strength steel specimens with central hole.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Fatigue and fracture mechanics · Surface Treatment and Residual Stress · Mechanical Behavior of Composites
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (39)
Show source-provided references
1. Fatigue crack nucleation: mechanistic modelling across the length scales10.1016/j.cossms.2014.02.005 ↗
2. A combined grain scale elastic–plastic criterion for identification of fatigue crack initiation sites in a twin containing polycrystalline nickel-base superalloy10.1016/j.actamat.2015.09.050 ↗
3. Impact of the grain size distribution on the yield stress of heterogeneous materials10.1016/j.ijplas.2006.03.004 ↗
4. Researches on the elastic properties and the plastic extension of metals
5. Micro-plasticity in crystals of tin
6. From micro- to macroplasticity10.1002/adma.200600397 ↗
7. Micro-plasticity and recent insights from intermittent and small-scale plasticity10.1016/j.actamat.2017.06.023 ↗
8. Overview on micro- and nanomechanical testing: New insights in interface plasticity and fracture at small length scales
9. Micro-plasticity of medium Mn austenitic steel: Perfect dislocation plasticity and deformation twinning10.1016/j.actamat.2017.06.014 ↗
10. Identification of the micro-plasticity mechanisms at the origin of self-heating under cyclic loading with low stress amplitude10.1016/j.ijfatigue.2017.05.027 ↗
11. Plasticity and damage heterogeneity in fatigue10.1016/j.tafmec.2007.10.006 ↗
12. Fatigue crack initiation, slip localization and twin boundaries in a nickel-based superalloy10.1016/j.cossms.2014.06.001 ↗
13. Some comments about fatigue crack initiation in relation to cyclic slip irreversibility10.1016/j.engfracmech.2007.04.014 ↗
14. Cumulative fatigue damage and life prediction theories: a survey of the state of art for homogenous materials10.1016/S0142-1123(97)00081-9 ↗
15. Variational principles for stress and strain fluctuations in inhomogeneous materials
16. Mechanisms of fatigue crack growth – a critical digest of theoretical developments10.1111/ffe.12392 ↗
17. Experimental analysis and modelling of fatigue crack initiation mechanisms10.15632/jtam-pl.55.4.1443 ↗
18. From mesoscopic heterogeneity of slip to macroscopic fluctuations of stress and strain10.1016/S1359-6454(96)00227-3 ↗
19. The physics of fatigue crack initiation10.1016/j.ijfatigue.2012.10.009 ↗
20. An ESPI experimental study on the phenomenon of fracture in glass. Is it brittle or plastic?10.1016/j.jmps.2011.04.008 ↗
21. Continuum approach to high-cycle fatigue modelling10.1016/j.ijfatigue.2007.08.009 ↗
22. A hypothetical dislocation well model for kinematic hardening in cyclic plasticity10.1016/j.ijplas.2018.06.015 ↗
23. An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments10.1557/JMR.1992.1564 ↗
24. Identification of yield stress and plastic hardening parameters from a spherical indentation test10.1016/j.ijmecsci.2007.03.013 ↗
25. Evaluation of damage in steels subjected to exploitation loading - destructive and non-destructive methods10.1142/S0217979208050772 ↗
26. A new approach for the influence of residual stress on fatigue crack propagation10.1016/j.rinp.2017.06.039 ↗
27. Initializing type-2 residual stresses in crystal plasticity finite element simulations utilizing high-energy diffraction microscopy data10.1016/j.msea.2018.05.031 ↗
28. Micromechanical modelling of short fatigue crack10.1016/j.cossms.2014.05.001 ↗
29. Tu S-T, Zhang X-C. Fatigue Crack Initiation Mechanisms. Reference Module in Materials Science and Materials Engineering; 2016.10.1016/B978-0-12-803581-8.02852-6 ↗
30. Fatigue crack growth prediction accounting for the damage zone10.1111/j.1460-2695.2004.00829.x ↗
31. On the criterion of damage evolution for variable multiaxial stress states10.1016/S0020-7683(97)00121-2 ↗
32. A critical plane gradient approach for the prediction of notched HCF life10.1016/j.ijfatigue.2004.10.003 ↗
33. Micro-mechanical modelling of high cycle fatigue behaviour of metals under multiaxial loads10.1016/j.mechmat.2012.08.006 ↗
34. Using the strip-yield mechanics to model fatigue crack growth by damage accumulation ahead of the crack tip10.1016/j.ijfatigue.2017.06.039 ↗
35. The role of local plasticity during very high cycle fatigue crack initiation in high-strength steels10.1016/j.ijfatigue.2018.02.008 ↗
36. A strain-dependent ductile damage model and its application in the derivation of fracture toughness by micro-indentation10.1016/j.matdes.2014.11.010 ↗
37. Review of Electronic Speckle Pattern Interferometry (ESPI) for three dimensional displacement measurement
38. Experimental evaluation of shielding effect on growing fatigue cracks under overloads using ESPI10.1016/j.ijfatigue.2015.10.003 ↗
39. Plastic Strain mapping with sub-micron resolution using Digital Image Correlation10.1007/s11340-012-9685-2 ↗