ELASTIC IMPACT ON A RIGID WALL

- July 9, 2022 at 8:46 pm
  
  shivamr20
  Subscriber
  
  greetings,
  i am trying to understand the mechanical apdl code for the problem "elastic impact of a rod on a rigid wall". this problem is solved in ansys verification manual 265. basically in this problem, a rod is striking a rigid wall at a velocity of 202.2 in/sec. so in order to do this transient analysis, i need to define this velocity as an initial condition for all the nodes of the rod. As far as I understand, the code should be "IC,ALL,VELX,,202.2" where all are the nodes of the rod. But when I looked at the verification manual code for this problem, the initial condition was defined as "IC,ALL,UX,,202.2". I dont understand why UX and not VELX. we need to define velocity right? i would truly appreciate any help on this.
- July 11, 2022 at 9:03 am
  Erik Kostson
  Ansys Employee
  Hi
  We can not see this (IC,ALL,UX,,202.2). Could you let us know where you saw this (help manual, and which release, etc.)?
  
  VM265 issues correctly for the initial velocity say in the help manual (2022 R1/current release:):
```
IC,ALL,VELX,202.2
```
  - July 14, 2022 at 6:22 am
    
    shivamr20
    Subscriber
    
    ANSYS MECHANICAL APDL VERIFICATION MANUAL, NOVEMBER 2013, RELEASE 15.0
- July 14, 2022 at 6:21 am
  
  shivamr20
  Subscriber
  
  HI
  this was on ANSYS MECHANICAL APDL VERIFICATION MANUAL – NOVEMBER 2013, RELEASE 15.0. Problem VM265. By the way, where can I get the latest release?
- July 14, 2022 at 6:43 am
  
  shivamr20
  Subscriber
  
  ok, I got the latesh manual. It says "IC,ALL,VELX,202.2". Thank you

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