Mechanical Engineering Dept.
Ben-Gurion University of the Negev
P. O. Box 653, Beer-Sheva 84105, Israel.
Born on 1975 in Israel.
With the Computational Mechanics Laboratory since August 2001.
2001 - B.Sc. in Mechanical Engineering. Ben-Gurion University of the Negev, Israel.
2003 - M.Sc. in Mechanical Engineering. Ben-Gurion University of the Negev, Israel.
Ph.D. Research Topic
Edge Stress Intensity Functions in Three Dimensional Domains
The solution to elasticity problems in three-dimensional (3-D) polyhedral domains in the vicinity of an edge is represented by a family of eigen-functions (similar to 2-D domains) complemented by shadow-functions and their associated edge stress intensity functions (ESIFs), which are functions along the edge. These are of major engineering importance because failure theories directly or indirectly involve them. Previous methods presented for ESIF extractions are point-wise and assume 2-D displacement fields, i.e: the ESIF value at a specific point along the edge is extracted, with either plane strain or plane stress assumption.
The aim of this research is two-fold: first to provide the mathematical algorithm for the construction of the asymptotic elastic solution in the vicinity of an edge (which is an extension of the two-dimensional case), and second, to compute a polynomial approximation of the edge stress intensity function by a new quasi-dual extraction method.
This work addresses isotropic, anisotropic and multi-material domains.
The Compact Tension Specimen
(Example problem of engineering importance)
Model Domain of Interest
Edge Flux Intensity Functions in Three Dimensional Domains
Link to: M.Sc. Thesis (PDF file)
(1) N. Omer, Z. Yosibash, M. Costabel, and M. Dauge. Edge flux intensity functions in polyhedral domains and their extraction by a quasidual function method. Int. Jour. Fracture, 129:97–130, 2004. (PDF File)
(3) Z. Yosibash, N. Omer, M. Costabel, and M. Dauge. Edge stress intensity functions in polyhedral domains and their extraction by a quasidual function method. Int. Jour. Fracture, 136:37-73, 2005. (PDF File)
Last update: February, 2006