A multiscale phenomenological constitutive model for strain rate dependent tensile ductility in nanocrystalline metals

作者: M. Amir Siddiq , Tamer El Sayed

DOI: 10.1016/J.MATLET.2014.11.112

关键词:

摘要: … + 1 ( ε ̇ p ε ̇ 0 p ) m + 1 m Where m is the rate sensitivity exponent, ε ̇ 0 p is the reference plastic strain rate, N is the void density, f is the volume fraction of voids, a is the mean void …

参考文章(25)
K.S Kumar, H Van Swygenhoven, S Suresh, Mechanical behavior of nanocrystalline metals and alloys Acta Materialia. ,vol. 51, pp. 5743- 5774 ,(2003) , 10.1016/J.ACTAMAT.2003.08.032
C. Schillebeeckx, S. Berbenni, L. Capolungo, M. Cherkaoui, A new micromechanics-based scale transition model for the strain-rate sensitive behavior of nanocrystalline materials Philosophical Magazine. ,vol. 91, pp. 657- 681 ,(2011) , 10.1080/14786435.2010.522213
L. Lu, S.X. Li, K. Lu, An abnormal strain rate effect on tensile behavior in nanocrystalline copper Scripta Materialia. ,vol. 45, pp. 1163- 1169 ,(2001) , 10.1016/S1359-6462(01)01138-1
Hsueh-Hung Fu, David J. Benson, Marc André Meyers, Computational description of nanocrystalline deformation based on crystal plasticity Acta Materialia. ,vol. 52, pp. 4413- 4425 ,(2004) , 10.1016/J.ACTAMAT.2004.05.036
Ercan Gürses, Tamer El Sayed, Constitutive modeling of strain rate effects in nanocrystalline and ultrafine grained polycrystals International Journal of Solids and Structures. ,vol. 48, pp. 1610- 1616 ,(2011) , 10.1016/J.IJSOLSTR.2011.02.013
Y WEI, C SU, L ANAND, A computational study of the mechanical behavior of nanocrystalline fcc metals Acta Materialia. ,vol. 54, pp. 3177- 3190 ,(2006) , 10.1016/J.ACTAMAT.2006.03.007
K. Jonnalagadda, N. Karanjgaokar, I. Chasiotis, J. Chee, D. Peroulis, Strain rate sensitivity of nanocrystalline Au films at room temperature Acta Materialia. ,vol. 58, pp. 4674- 4684 ,(2010) , 10.1016/J.ACTAMAT.2010.04.048
F. Dalla Torre, H. Van Swygenhoven, M. Victoria, Nanocrystalline electrodeposited Ni: microstructure and tensile properties Acta Materialia. ,vol. 50, pp. 3957- 3970 ,(2002) , 10.1016/S1359-6454(02)00198-2