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A. Cruzado et al.
plastic strains, etc.) throughout the representative volume element were used to
generate fatigue indicator parameters, which were able to determine the most critical
points in the microstructure to initiate a fatigue crack. These fatigue indicator
parameters were calibrated by comparison with a few experimental fatigue tests
and then used to predict the effect of loading conditions (different strain ratios) and
microstructure (small and coarse grain size) on the fatigue life of the superalloy.
Overall, the strategy shows how a balanced combination of micromechanical
tests and macromechanical tests together with the application of computational
homogenization strategies can be used to predict the mechanical behavior of Nibased superalloys taken into account the influence of the microstructure.
References
1. Abaqus (2013) Analysis User’s Manual, version 6.13. Dassault Systems
2. P. Armstrong, C.A. Frederick, Mathematical representation of the multiaxial bauschinger
effect. CEGB Report rd/b/n731, Berkeley nuclear laboratories, Berkeley (1966)
3. A. Banerjee, J.K. Sahu, C.D. Fernando, R.N. Ghosh, Micromechanisms of cyclic plastic
deformation of alloy IN718 at 600 ◦ C. Fatigue Fract. Eng. Mater. Struct. 39, 877–885 (2016)
4. C. Boehlert, H. Li, L. Wang, Slip system characterization of in 718 using in-situ scanning
electron microscopy. Adv. Mater. Process. 168, 41–45 (2010)
5. R. Brommesson, M. Ekh, M. Hörnqvist, Correlation between crack length and load drop for
low-cycle fatigue crack growth in ti-6242. Int. J. Fatigue 81, 1–9 (2015)
6. G. Cailletaud, A micromechanical approach to inelastic behaviour of metals. Int. J. Plast. 8,
55–73 (1992)
7. G.M. Castelluccio, D.L. McDowell, A mesoscale approach for growth of 3D microstructurally
small fatigue cracks in polycrystals. Int. J. Damage Mech. 23, 791–818 (2013)
8. G.M. Castelluccio, D.L. McDowell, Mesoscale modeling of microstructurally small fatigue
cracks in metallic polycrystals. Mater. Sci. Eng. A 598, 34–55 (2014)
9. G.M. Castelluccio, D.L. McDowell, Microstructure and mesh sensitivities of mesoscale
surrogate driving force measures for transgranular fatigue cracks in polycrystals. Mater. Sci.
Eng. A 639, 626–639 (2015)
10. J. Chaboche, On some modifications of kinematic hardening to improve the description of
ratchetting effects. Int. J. Plast. 7, 661–678 (1991)
11. J. Chaboche, D. Nouailhas, D. Pacou, P. Paulmier, Modeling of the cyclic response and
rattchening effects on inconel 718 alloy. Eur. J. Mech. A/Solids 10, 101–102 (1991)
12. J. Chaboche, P. Kanouté, F. Azzouz, Cyclic inelastic constitutive equations and their impact on
the fatigue life predictions. Int. J. Plast. 35, 44–66 (2012)
13. P. Chakraborty, S. Ghosh, Accelerating cyclic plasticity simulations using an adaptive wavelet
transformation based multitime scaling method. Int. J. Numer. Methods Eng. 93(13), 1425–
1454 (2013)
14. A. Cruzado, B. Gan, M. Jiménez, D. Barba, K. Ostolaza, A. Linaza, J. Molina-Aldareguia, J.
Llorca, J. Segurado, Multiscale modeling of the mechanical behavior of inconel 718 superalloy
based on micropillar compression and computational homogenization. Acta Mater. 98, 242–
253 (2015)
15. A. Cruzado, J. Llorca, J. Segurado, Modeling cyclic deformation of inconel 718 superalloy
by means of crystal plasticity and computational homogenization. Int. J. Solids Struct. 122,
1521–1542 (2017)
16. A. Cruzado, S. Lucarini, J. Llorca, J. Segurado, Crystal plasticity simulation of the effect of
grain size on the fatigue behavior of polycrystalline inconel 718. Int. J. Fatigue 113, 236–245
(2018)
A. Cruzado et al.
plastic strains, etc.) throughout the representative volume element were used to
generate fatigue indicator parameters, which were able to determine the most critical
points in the microstructure to initiate a fatigue crack. These fatigue indicator
parameters were calibrated by comparison with a few experimental fatigue tests
and then used to predict the effect of loading conditions (different strain ratios) and
microstructure (small and coarse grain size) on the fatigue life of the superalloy.
Overall, the strategy shows how a balanced combination of micromechanical
tests and macromechanical tests together with the application of computational
homogenization strategies can be used to predict the mechanical behavior of Nibased superalloys taken into account the influence of the microstructure.
References
1. Abaqus (2013) Analysis User’s Manual, version 6.13. Dassault Systems
2. P. Armstrong, C.A. Frederick, Mathematical representation of the multiaxial bauschinger
effect. CEGB Report rd/b/n731, Berkeley nuclear laboratories, Berkeley (1966)
3. A. Banerjee, J.K. Sahu, C.D. Fernando, R.N. Ghosh, Micromechanisms of cyclic plastic
deformation of alloy IN718 at 600 ◦ C. Fatigue Fract. Eng. Mater. Struct. 39, 877–885 (2016)
4. C. Boehlert, H. Li, L. Wang, Slip system characterization of in 718 using in-situ scanning
electron microscopy. Adv. Mater. Process. 168, 41–45 (2010)
5. R. Brommesson, M. Ekh, M. Hörnqvist, Correlation between crack length and load drop for
low-cycle fatigue crack growth in ti-6242. Int. J. Fatigue 81, 1–9 (2015)
6. G. Cailletaud, A micromechanical approach to inelastic behaviour of metals. Int. J. Plast. 8,
55–73 (1992)
7. G.M. Castelluccio, D.L. McDowell, A mesoscale approach for growth of 3D microstructurally
small fatigue cracks in polycrystals. Int. J. Damage Mech. 23, 791–818 (2013)
8. G.M. Castelluccio, D.L. McDowell, Mesoscale modeling of microstructurally small fatigue
cracks in metallic polycrystals. Mater. Sci. Eng. A 598, 34–55 (2014)
9. G.M. Castelluccio, D.L. McDowell, Microstructure and mesh sensitivities of mesoscale
surrogate driving force measures for transgranular fatigue cracks in polycrystals. Mater. Sci.
Eng. A 639, 626–639 (2015)
10. J. Chaboche, On some modifications of kinematic hardening to improve the description of
ratchetting effects. Int. J. Plast. 7, 661–678 (1991)
11. J. Chaboche, D. Nouailhas, D. Pacou, P. Paulmier, Modeling of the cyclic response and
rattchening effects on inconel 718 alloy. Eur. J. Mech. A/Solids 10, 101–102 (1991)
12. J. Chaboche, P. Kanouté, F. Azzouz, Cyclic inelastic constitutive equations and their impact on
the fatigue life predictions. Int. J. Plast. 35, 44–66 (2012)
13. P. Chakraborty, S. Ghosh, Accelerating cyclic plasticity simulations using an adaptive wavelet
transformation based multitime scaling method. Int. J. Numer. Methods Eng. 93(13), 1425–
1454 (2013)
14. A. Cruzado, B. Gan, M. Jiménez, D. Barba, K. Ostolaza, A. Linaza, J. Molina-Aldareguia, J.
Llorca, J. Segurado, Multiscale modeling of the mechanical behavior of inconel 718 superalloy
based on micropillar compression and computational homogenization. Acta Mater. 98, 242–
253 (2015)
15. A. Cruzado, J. Llorca, J. Segurado, Modeling cyclic deformation of inconel 718 superalloy
by means of crystal plasticity and computational homogenization. Int. J. Solids Struct. 122,
1521–1542 (2017)
16. A. Cruzado, S. Lucarini, J. Llorca, J. Segurado, Crystal plasticity simulation of the effect of
grain size on the fatigue behavior of polycrystalline inconel 718. Int. J. Fatigue 113, 236–245
(2018)