R Narasimhan et al 2009 J. Phys. D: Appl. Phys. 42 214005 doi:10.1088/0022-3727/42/21/214005
R Narasimhan1, H Y Subramanya2, S D Patil1, Parag Tandaiya1 and U Ramamurty3
Show affiliationsIn this paper, an overview of some recent numerical simulations of stationary crack tip fields in elastic–plastic solids is presented. First, asymptotic analyses carried out within the framework of 2D plane strain or plane stress conditions in both pressure insensitive and pressure sensitive plastic solids are reviewed. This is followed by discussion of salient results obtained from recent computational studies. These pertain to 3D characteristics of elastic–plastic near-front fields under mixed mode loading, mechanics of fracture and simulation of near-tip shear banding process of amorphous alloys and influence of crack tip constraint on the structure of near-tip fields in ductile single crystals. These results serve to illustrate several important features associated with stress and strain distributions near the crack tip and provide the foundation for understanding the operative failure mechanisms. The paper concludes by highlighting some of the future prospects for this field of study.
62.20.M- Structural failure of materials
62.20.F- Deformation and plasticity
81.40.Np Fatigue, corrosion fatigue, embrittlement, cracking, fracture, and failure
Issue 21 (7 November 2009)
Received 24 December 2008, in final form 4 March 2009
Published 22 October 2009
R Narasimhan et al 2009 J. Phys. D: Appl. Phys. 42 214005
Burkhard Zink et al 2007 J. Phys.: Conf. Ser. 68 012050
E A El-Sayad et al 2009 J. Phys. D: Appl. Phys. 42 225401
Shandong Li et al 2008 J. Phys. D: Appl. Phys. 41 055004
Ciprian Acatrinei 2008 J. Phys. A: Math. Theor. 41 215401
Yoritoshi Adachi et al 2009 New J. Phys. 11 113033
Jungho Kim et al 2007 J. Phys.: Condens. Matter 19 106203
S Pyrpassopoulos et al 2007 Nanotechnology 18 485604
Sebastian Müller et al 2009 New J. Phys. 11 103025
M Passacantando et al 2008 Nanotechnology 19 395701