Archive for September 21st, 2006

Identifying Problem Areas for Poorly Converging Implicit Solutions

Published by Suri Bala September 21st, 2006 in LS-DYNA Bytes and LS-DYNA Implicit. 2 Comments

For non or poorly converging implicit solutions, the parameter D3ITCTL parameter in *CONTROL_IMPLICIT_SOLUTION may come handy to isolate regions of interest. When D3ITCTL is non-zero, LS-DYNA outputs the model information at each Iterative step into a binary file named D3ITER which is in the same format as D3PLOT. The number of steps for which the [...]

Mapping of Deformed Nodal Coordinates for SubSystem/Component Analysis

Published by Suri Bala September 21st, 2006 in LS-DYNA Output. 6 Comments

Several analyses sometimes requires the mapping of nodal positions (coordinates) from a previous run for use in current run. For single component this is a rather easy task since it just involves writing a DYNAIN file for part(s) of interest using *INTEFACE_SPRINGBACK_LSDYNA keyword which would consist of final deformed nodal coordinates and element history variables. [...]

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