In the present research, the mixed-mode fracture mechanics analysis in a plate with central hole under tensile loading is considered. It is assumed that a plate containing two symmetrical hole-edge cracks is bonded with two dissimilar planes. The stress intensity factors at the crack tips are calculated. The problem is modeled in Casca software and this model is analyzed with Franc software. Th...

No one will dispute the desirability of fitting the round peg in the round hole and the square peg in the square hole. But it is easy to forget that when the peg is a human individual and the hole is a niche in human society neither is perfectly round nor square. Nor are their shapes constant. Adaptations in both the individual and society are continually needed to make better “fits.” The attem...

Roll forming process is used for manufacturing sheet metal parts by successive bending and creating the final shape with gradual deformation. In this article, deformation of a pre-punched sheet due to the roll forming process was studied. Two main defects in the roll forming process are ovality of holes and bow defect. The ovality of the hole is influenced by the process parameters including sh...

We consider the C-metric as a gravitational field configuration that describes an accelerating black hole in presence of semi-infinite cosmic string, along direction. adopt expression for energy-momentum developed teleparallel equivalent general relativity (TEGR) and obtain possible explanation acceleration hole. The energy enclosed by surfaces constant radius around is evaluated, particular co...