Served Behavior Mutiscaleanalysis Of Nickel-based Alloy

In this paper, the macro - meso study multi-scale material-Ni base turbine disk alloy structure of the state, to create material microstructure and mechanical properties of the quantitative relationship. Then the information through the mat- erial microstructure, to find and optimize the effective performance of macro- materials. The integration of the material deformation, damage, fracture series of processes, the purpose was to study the material from the microscopic to the macroscopic continuous response. To form a complete set of engineering sense of the physical properties of materials research methods.Analysis of data including the preparation of turbine disk material, Ni- based alloy single crystal materials to prepare the data for Ni base single crystal, polycrystalline constitutive relation, coupled thermal analysis of turbine disk, under the hierarchical multi-scale mechanics calculation Material representative volume element (RVE) of the stress and strain analysis, load spectrum under the action of macro-meso performance degradation response, response to damage accumulation, material failure to crack.This study aims to use computer simulation and modeling technologies, "Virtual reality " environment, notched specimens from the simulation exper- iment, the turbine disk for a specific service we use "virtual materials" tech- nology for turbine disk to create a The key parts of the whole service life pre- diction of the behavior process; build key parts of turbine disk material pro- cess state file service, the service life of turbine disk implementation of personalized management; developed a turbine disk service behavior simulation and model- ing software platform, the "virtual Material "technology and " virtual reality "technology used in aircraft engine turbine disks. We strive to make compre- hensive use of technology, the degree of actual combat reach the world advanced level.Based on this theory, for the nickel base turbine disk material, by estab- lishing a hierarchical multi-scale method, described by the hierarchical multi- scale technical points, the creation of a "material / structure " response "from big to small"in Inheritance and the material properties and behavior "from small to large, "the upload, the development of the interface between the ad- jacent scales of material "representative volume element "boundary state auto-matically "extract - inheritance " algorithm and corresponding computer process, planning Service in the turbine disk "virtual environment ", "virtual coupling", "virtual process " technology, content and direction of development, in a hie- rarchical multi-scale convergence and the calculation based on the definition of "com- putational materials engineering"concept, Definition and role in the formulation of the "computational materials engineering, "the engineering road map, suc- cessfully serving behavior of turbine disks involved in a "virtual sci- ence " into the service behavior prediction "virtual technology. "...