Hostname: page-component-745bb68f8f-s22k5 Total loading time: 0 Render date: 2025-01-27T03:12:53.022Z Has data issue: false hasContentIssue false
  • English
  • Français

Inelastic Behavior and Grain-Boundary Effects in Polycrystalline Materials

Published online by Cambridge University Press:  26 February 2011

Jibin Shi ,
Mohammed Zikry  and
Tarek Moustafa Hatem
Jibin Shi
Affiliation:
[email protected], North Carolina State University, Mechanical and Aerospace Engineering, 2601 Stinson Dr, Campus Box 7910, Raleigh, NC, 27695, United States
Mohammed Zikry
Affiliation:
[email protected], North Carolina State University, Mechanical and Aerospace Engineering, 2601 Stinson Dr, Campus Box 7910, Raleigh, NC, 27695, United States
Tarek Moustafa Hatem
Affiliation:
[email protected], North Carolina State University, Mechanical and Aerospace Engineering, 2601 Stinson Dr, Campus Box 7910, Raleigh, NC, 27695, United States
Get access

Abstract

Dislocation-density based multiple-slip constitutive formulations and specialized computational schemes are introduced to account for grain-boundary (GB) effects in polycrystalline aggregates. New kinematically based interfacial grain-boundary regions and formulations are introduced to account for dislocation-density transmission, absorption, and pile-ups that may occur due to CSL grain-boundary misorientations.

Keywords

grain boundariescrystallinesimulation
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 978: Symposium GG – Multiscale Modeling of Materials , 2006 , 0978-GG12-07-EE08-07
Copyright
Copyright © Materials Research Society 2007

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Bay, B., Hansen, N., Hughes, D. A. and Kuhlmann-Wilsdorf, D., Acta Metall. Mater. 40, 205 (1992).10.1016/0956-7151(92)90296-QGoogle Scholar
2. Zikry, M. A. and Kao, M., J. Mech. Phys. Solids 44, 1765 (1996).Google Scholar
3. Ashmawi, W. M. and Zikry, M. A., J. Computer-Aided Mater. Design, 7, 55 (2000).Google Scholar
4. Randle, V., Acta Mat., 46, 1459 (1997).Google Scholar
5. Nes, E., Prog. Mater. Sci. 41, 129 (1998).Google Scholar
6. Kameda, T. and Zikry, M. A., Int. J. Plasticity 14, 689 (1998).Google Scholar
7. Ashmawi, W.M. and Zikry, M.A., Mater. Sci. Engng. A 343, 1 (2002).Google Scholar
8. Mughrabi, H., Mater. Sci. and Tech. 85, 15 (1987).Google Scholar
9. Kubin, L. P. and Estrin, Y., Revue Phys Appl. 23, 573 (1988).Google Scholar
10. Zikry, M. A., Comput. Struct. 50, 337 (1994).Google Scholar
11. Lee, T. C., Robertson, I. M. and Birnbaum, H. K., Acta Metall. Mater., 40, 2569 (1992).Google Scholar