Share This Article:

Stress Loops Effect in Ductile Failure of Mild Steel

Abstract Full-Text HTML Download Download as PDF (Size:329KB) PP. 293-302
DOI: 10.4236/jmmce.2009.84026    4,243 Downloads   6,212 Views   Citations
Author(s)    Leave a comment

ABSTRACT

A simulation study of effect of stress on mild steel microstructure has revealed stress loops at areas of stress application which are believed to be the root cause of the ductile failure morphology (cup and cone) in ductile alloys under plane strain conditions. The areas of concentration of these stress loops were observed to be that of subsequent instability (or necking) observed in mild steel and other materials of low friction (flow) stress. Shear stress loops with angular bearing of 450 to the tensile axis were observed to instigate both the failure site and shear morphology in these materials. In plane stress conditions, shear was seen to be that of a wave shape running obliquely to area of stress application resulting in oblique necking observed in thin mild steel sheets.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

O. Oluwole, "Stress Loops Effect in Ductile Failure of Mild Steel," Journal of Minerals and Materials Characterization and Engineering, Vol. 8 No. 4, 2009, pp. 293-302. doi: 10.4236/jmmce.2009.84026.

References

[1] Singh. V., 2005, Physical Metallurgy, Standard Publishers Distributors, Delhi.
[2] Kakani. S. L., and Kakani. A., 2004, Material Science, New Age International Publishers, Delhi. p.262
[3] French. I. E., and Weinrich. P. F., 1979, “The shear mode of ductile fracture in mild steel.” Materials Science and Engineering, Vol. 39, pp. 43-46.
[4] Hill. R, 1985, The Mathematical Theory of Plasticity, Clarendon Press, Oxford,U.K. pp.321- 325
[5] Pardoen, T., Hachez, F., Marchioni, B., Blyth, P. H. and Atkins. A. G., 2004, “Mode I fracture of sheet metal.” Journal of the Mechanics and Physics of Solids, Vol. 52, pp. 423- 452.

  
comments powered by Disqus

Copyright © 2019 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.