Abstract
The purpose of this article is to revise some concepts on defects nucleation based on bifurcation of equilibrium solutions. Equilibrium solutions are obtained on a homogeneous body and on a body with an infinitesimal defect such as cavity under the same prescribed dead load. First void formation and growth in non linear mechanics are examined. A branch of radial transformation bifurcates from the undeformed configuration in presence of a small cavity. Two cases of behaviour are examined. One case is the growth of the cavity by only the deformation of the shell. In another modelling the cavity evolves like a damaged zone, the transition between the sound part and the damaged one is governed by a local criterium. Each configuration leads to the definition of a nucleation criterion based on a presence of a bifurcation state, common state of the homogeneous body and a body with an infinitesimal defect.
Similar content being viewed by others
References
Ball JM (1982). Discontinuous equilibrium solutions and cavitation in non linear elastiticty. Phil Trans R Soc Lond A 306: 557–610
Chung DT, Horgan CO and Abeyaratne R (1987). A note on a bifurcation problem in finite plasticity related to void nucleation. Int J Solids Struct 23: 983–988
Horgan CO and Pence TJ (1989). Void nuleation in tensile dead loading of a composite incompressible non linearly elastic sphere. J Elast 21: 61–82
Ogden RW (1997) Non linear elastic deformations. Dover Publications
Stolz C, Pradeilles-Duval RM (1997) Thermomechanical approach of running discontinuities. In: Variations of domains and free-boundary problems in solids mechanics. IUTAM, Springer, pp 245–251
Stolz C, Pradeilles-Duval RM (2004) Stability and bifurcation with moving discontinuities. In: Mechanics of material forces, AMMA11, Springer, Chap 26, 261–268
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Stolz, C. Bifurcation of equilibrium solutions and defects nucleation. Int J Fract 147, 103–107 (2007). https://doi.org/10.1007/s10704-007-9147-5
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10704-007-9147-5