Please refer to the manual for more details.ġ.Ĝreate a directory and include in it the executable version of MDDP08 (you can use either the Windows MDDP08 executable or the Linux executable) as well as the two input files DDinput and data.Ģ.ğrom the command line, execute the program by typing MDDP08.exe and hit Returnģ. The data file includes the material parameters and additional numerical and output control parameter. DDinput features the details of the initial dislocation structure (coordinates, global Burgers’ vector components, slip plane, node constrains, and connectivity of the dislocation nodes), the loading parameters and the mesh size and the time step. This simulation is performed using MDDP and requires two input files DDinput and data. This process becomes harder as more dislocations pile up against the walls and induce back stress on the source, ultimately shutting it down. Under the effect of the shear stress, the dislocation bows out, forms a loop and continuous operating in this mode generating increased number of loops. The boundary condition is rigid walls in all directions, which means that the dislocations cannot penetrate the walls and would pile-up against it. The two end points of the dislocation are pinned. Shear stress yz is applied with constant shear strain rate of 10 s-1. This makes the character of this dislocation pure edge. Its Burgers vector points in the negative y-direction. The initial dislocation structure consists of a dislocation line of length 2000b extending along the x-axis with its line sense in the negative x-direction. The crystal is oriented so that the normal to the (111) plane is along the global z-axis, the crystallographic direction along the x-axis and the along the y-direction. The simulation box for our example is 12000x12000x12000 (in units of the magnitude of the Burgers vector, b) with the origin in the center of the box. Part 1: Frank read source operation Description of the simulation:
In this example, a new variable named Data is rounded to the nearest whole number and stored in variable RoundedData.
Alter > Specify Equations and enter the following equation:
0 kommentar(er)
