In this study, an extended stress-based forming limit diagram (FLD) for prediction of necking based on the Marciniak and Kucznski (M-K) model is represented and applied in tube hydroforming. The bulge forming of a straight tube is simulated by finite element method and verified with published experimental data. This adaptive simulation technique is based on the ability to detect the onset an...

Abstract Hyperbolic metasurfaces with unique dispersion properties can manipulate light–matter interactions according to the demands. However, due their inherent physical properties, topological transitions (flat bands) exist only in orthogonal directions, which greatly limit application. Here, we unveil rich engineering and hyperbolic metasurfaces. Based on effective medium theory, rotation ma...

Decision diagrams are structures used in several domains where memory usage is critical. Data Decision Diagrams (DDD) are a kind of decision diagrams used in model-checking for example. However, they bring a solution to the memory problem that is not always sufficient. To overcome memory limit, a solution is to distribute memory. Some implementations exist for BDD (Binary Decision Diagrams), bu...

Nesting is used to extend Venn Diagrams from their usual practical limit of three or four sets to a form that readily handles five to eight sets. Although devised independently, such nested diagrams can be viewed as the application to Venn Diagrams of an idea proposed in 1896 by Lewis Carroll, in the context of his alternative set diagrams. Such nesting is rarely if ever used today, but has gen...

Stainless steel is an alloy of iron, chromium, and, occasionally, nickel and other metals that resists corrosion. Metal made into thin, flat pieces through industrial process called sheet metal. One the fundamental shapes used in metalworking, it can be cut bent many shapes. to create a vast array common items. The aim current work examine 310 austenitic stainless steel’s formability at room te...