the main cause of structural damage in buildings subjected to seismic actions is lateral drift. in almost all reinforced concrete (rc) structures, whether designed with walls or frames, it is likely to be the code drift limits that control the design drift. the design drift limits and their contribution to damage may be represented indirectly through the material strain limits. the aim of this ...

The foundation of a generic modelling tool is its flexible diagramming facility. The paper proposes a universal graphical editor definition language based on logical metamodel extended by presentation classes. Some more advanced diagram definition facilities such as patterns and diagram cores are also introduced. Implementation principles of this language, based on Graphical Diagramming Engine ...

forming limit curve (flc) is an important tool for evaluation of formability of sheet metals subjected to different loading. free bulge of aluminume tubes has been investigated numerically to obtain flc. to verify the numerical results one experimental setup has been manufactured which has the ability of controlling the internal pressure and axial feed. in this study, time and zone of bursting ...

In hot forming process, the workpiece undergoes plastic deformation at high temperature and the microstructure of the workpiece changes according to the plastic deformation. These changes affect the mechanical properties of workpiece. In order to optimize this process, both the plastic deformation of workpiece and its microstructural changes should be taken into consideration. Since material be...

In hot forming process, the workpiece undergoes plastic deformation at high temperature and the microstructure of the workpiece changes according to the plastic deformation. These changes affect the mechanical properties of workpiece. In order to optimize this process, both the plastic deformation of workpiece and its microstructural changes should be taken into consideration. Since material be...

Increasing of strain rate during forming of semi products or products is one of the ways of production intensification. Therefore an attention is paid to the study of the influence of the strain rate on the material behaviour in the deformation process, but also on the methodology of evaluation of formability at increased strain rates (including impact) 1,2 . In general, it applies that increas...

Lattice animals provide a discretized model for the θ transition displayed by branched polymers in solvent. Exact graph enumeration studies have given some indications that the phase diagram of such lattice animals may contain two collapsed phases as well as an extended phase. This has not been confirmed by studies using other means. We use the exact correspondence between the q → 1 limit of an...