Hello,

Here’s a tip that you might find useful if you’re an Abaqus/Explicit user and using Smoothed Particle Hydrodynamics (SPH) feature. By default, Abaqus uses static particle search method for finding all neighbors for all particles. The size of this search domain can be either user defined or the default size, which is 10% larger in all directions than the overall model initial dimensions and is centered at the geometric center of the model. If the default static search method is used then this search domain is fixed and does not move. The drawback of this method is once

 particle leave the search domain then it is no longer included in the calculation and is considered as a free particle (but you can see them in the Abaqus/Viewer). Now, you do not need to worry because starting release 6.12-1 we have introduced dynamic particle search domain where we track all the particles and increase the size of search domain (if necessary) to include all the particles during entire duration. In order to use this feature please use ‘1’ as the seventh (7th) parameter of the third (3rd) data line of the keyword *Section Controls as shown below.

Input File Usage:           

 *SECTION CONTROLS

first data line

second data line

, , , , , , 1

Regards,

Gajendra