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Welding Residual Stresses Depending on Solid-State Transformation Behaviour Studied by Numerical and Experimental Methods
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Analysis of Ductile Damage – Comparison between Micromechanical Models and Neutron Diffraction Experiments
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Localization of Stresses in Polycrystalline Grains Measured by Neutron Diffraction and Predicted by Self-Consistent Model
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HomeMaterials Science ForumMaterials Science Forum Vol. 681Analysis of Ductile Damage – Comparison between...

Analysis of Ductile Damage – Comparison between Micromechanical Models and Neutron Diffraction Experiments

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Abstract:

Ductile damage is a consequence of large strains more or less localized. Taking into account damage in constitutive behaviour of metallic materials is necessary to model various engineering problems involved in forming processes (stamping, punching, shearing...). It would lead to accurate predictions introducing microstructural features of materials [1-2]. In the present study, two crystalline plasticity models including damage effects in the framework of scale transition methods are investigated. These models are developed and based on different approaches with direct application to duplex stainless steels. The first approach is a variant of the Berveiller-Zaoui model in which the effect of ductile damage has been introduced. The second one is a generalized Cailletaud model taking into account the ductile damage [3-6]. Because of the microstructural complexity of the chosen materials, some particular developments of the micromechanical approaches are considered. Moreover, continuous damage mechanics is used at grain scale including its effect (or coupling) on plastic or elastic-plastic flow with more or less complex hardenings. The modelling is justified on some previous experimental results in metallic duplex materials [7-8]. The developed models allow then deducing the macroscopic behaviour of the aggregate with damage effects from the grains behaviour.

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Residual Stresses VIII

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Periodical:

Materials Science Forum (Volume 681)

Pages:

91-96

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.681.91

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Online since:

March 2011

Authors:

Benoit Panicaud, Ludovic Cauvin, Lea le Joncour, Andrzej Baczmanski, Khemais Saanouni, Manuel François

Keywords:

Diffraction Measurement, Ductile Damage, Elasto-Plasticity, Hardening, Micromechanical Model, Residual Stress

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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[1] A.L. Gurson: Journal of Engineering Materials and Technology 44 (1977), pp.1-15.

[2] V. Tvergaard and A. Needleman, in: Handbook of Materials Behaviour Models, Academic Press, NY (2001).

[3] K. Saanouni: Int. Journal of Plasticity 12 (1996), pp.1111-1121.

[4] A. Abdul-Latif and K. Saanouni: Int. Journal of Damage Mechanics 3 (1994), pp.237-259.

[5] A. Abdul-Latif and K. Saanouni: Int. Journal of Plasticity 12 (1996), pp.1123-1149.

[6] M. Boudifa, K. Saanouni and J. -L. Chaboche: Int. Journal of Mech. Sci. 51 (2009), pp.453-464.

[7] J. -B. Leblond, in: Mécanique de la rupture fragile et ductile, Hermès, Paris (2003).

[8] G. Rousselier, in: Handbook of Materials Behaviour Models, Academic Press, NY (2001).

[9] J. -L. Chaboche, M. Boudifa and K. Saanouni: Int. Journal of Fracture 137 (2006), pp.51-75.

[10] K. Danas, M. Idiart and P. Ponte-Castaéñeda: Comptes Rendus de Mécanique 336 (2008), pp.79-90.

DOI: 10.1016/j.crme.2007.10.017

[11] M. Bornert, T. Bretheau and P. Gilormini, in: Homogénéisation en mécanique des matériaux, vol 2, Hermès, Paris (2001).

[12] A. Zaoui, in: Passage du monocristal au polycristal, in: Colloque sur la mise en forme des matériaux métalliques (1988).

[13] S. Bugat, in: Comportement et endommagement des aciers austéno-ferritiques vieillis : une approche micro-mécanique, PhD Thesis, ENSMP (2000).

[14] G. Cailletaud: Int. Journal of Plasticity 8 (1992), p.55.

[15] M. Berveiller and A. Zaoui: Journal Mech. Phys. Solids 26 (1979), p.325.

[16] A. Baczmanski and C. Braham: Acta Mater. 52 (2004), pp.1133-1142.

[17] R. Dakhlaoui, A. Baczmanski, C. Braham, S. Wronski, K. Wierzbanowski and E.C. Oliver: Acta Mater. 54 (2006), pp.5027-5039.

[18] J. Santisteban, J. James, M. Daymond and L. Edwards: J. of Appl. Cryst. 39 (2006), pp.812-825.

[19] P. Pecharsky, K. Vitalij and Y. Zavalij, in: Fundamentals of powder diffraction and structural characterization of materials, Springer (2008).

[20] M. Boudifa, in: Modélisation macro et micro-macro des matériaux polycristallins endommageables avec compressibilité induite, PhD Thesis, UTT, Troyes (2006).

[21] N. Hfaiedh, in: Modélisation micromécanique des polycristaux - couplage plasticité, texture et endommagement, PhD Thesis, UTT, Troyes (2009).

[22] S. Gallée, in : Caractérisation expérimentale et simulation numérique des procédés d'emboutissage profond : application aux aciers inoxydables, PhD Thesis, UBS (2005).

[23] P. Evrard, in: Modélisation polycrystalline du comportement élastoplastique d'un acier inoxydable austéno-ferritique, PhD Thesis, Ecole Centrale de Lille (2008).

[24] M. Barral, J. -L. Lebrun, J. -M. Sprauel and G. Maeder: Met. Trans. A 18 (1987), pp.1229-1238.