RE: difference between step time and total time

Both ‘stepTime’ and ‘totalTime’ are passed into the subroutine.  The variable ‘stepTime’ will, in your case, vary from zero to one (or zero to two), depending on your load step.  The variable ‘totalTime’ will, in your case, vary from zero to nine.  You simply need to define your loading as an appropriate function of these variables.

Regards,

Dave Lindeman
Staff Scientist
Corporate Research Systems Laboratory
3M Center 235-3G-08
St. Paul, MN 55144
651-733-6383

From: [email protected] [mailto:[email protected]]
Sent: Wednesday, January 30, 2019 12:52 AM
To: [email protected]
Subject: [EXTERNAL] [Abaqus] difference between step time and total time


Hello Respected fellows

i am trying to write a VDLOAD subroutine, in which load need to be distributed as well as vary with respect to time i,e,. my pressure profile have spatial distribution as well as temporal distribution. But i am confused with with step time and total time as my simulation require multiple dynamic explicit steps.

I am giving one example what i understood going through manual, suppose I am doing a 6 step simulation, each even steps (2,! 4 and 6) is of 1 second and odd steps (1,3 & 5 ) are of 2 seconds. so the total time in the simulation will become 9 seconds.

now when simulation starts for step 1 step time vary from 0 to 2 seconds and total time too will vary from 0 to 2 seconds. but as the 2nd step begins step time will vary from 0 to 1 and total time will vary from 2 to 3 seconds. And so on.

please explain me how to do multiple step simulation using VDLOAD subroutine. in simulation high pressure shock loading is taking place in step numbe! r 1,3 and 5 and step 2,4 & 6 is used to provide damping to! the remaining elastic waves in the part. from step 1 to step 3 the position of the shock loading is changing.

For your help i will be very grateful to you.

Thank You

Abhishek





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