the ratio of deformation speed to wave speed exceeds 1.0000 in at least one element .

[Nosrat Akhgar]

hello . I am trying to model l-shape bending of sandwich sheets in 2d plane strain mode. when I submit the job I face with this error

.the punch crush the sheet except bending it

 

[Dave442]

This error is discussed in a previous thread on the forum:

http://www.eng-tips.com/viewthread.cfm?qid=80443

Also, there is an example of this analysis in the "Getting Started with Abaqus" Manuals:

Section 13 - Quasi-Static Analysis with Abaqus Explicit
Section 13.5 - Example: Forming a channel in Abaqus/Explicit