Tiago

Members
  • Content count

    9
  • Joined

  • Last visited

About Tiago

  • Rank
    Newbie

Profile Information

  • Country
    Portugal
  • Are you University user?
    Yes
  1. The connectivity is ok and the rigid body too. I followed that tutorial and I am making a new simulation now but it takes 10 times more time than the old one to run. I am trying to use the exact same material and connections to see if the problem has another source. For that kind of steel and an element characteristic length of 5mm i am using an inicial timestep of 5 as they recommend. But in my calculations it should be closer to 1 if I am not mistaken. It will take an hour to run. I let you know if its working.
  2. Hello, I am making a setup of a simple bumper structure colliding with a rigid wall on HyperCrash. I am using the Johnson-Cook model for the material. The structure is made of a beam with 2 crash boxes attached with spot welds. In the beginning of the test the structure is already vibrating (Capture2) and seems that the boxes are colliding with the beam instead of being attached. Can anyone help me to solve this vibration problem? can it be from the type of connection that I am using? Should I use other? see the print screens and tell me what you think. There are stress concentration close to the spot welds because they are completely rigid elements (Capture3) Another big problem is that the material is not having the desirable behavior. It is aluminum and should bend on crash but is not bending, its fracturing (Capture4)
  3. Wohoooooo I have been 3 days with this problem... Thanks a lot. RADIOSS is running. I let you know if I have good results
  4. I have seen other posts with this problem and I have tried to assign card image but I dont know how to do it in HyperCrash
  5. newtest2_0000.out
  6. I have done all of that and im having this problems: ERROR ID : 194 ** ERROR IN HIERARCHY REFERENCE DESCRIPTION : -- NODE GROUP ID : 4 -- INIVEL_group_4_of_PART TITLE : PART REFERENCE TO UNEXISTING ID=7 WARNING ID : 690 ** WARNING IN NODE GROUP DEFINITION .. INITIAL VELOCITIES .. DOMAIN DECOMPOSITION .. ELEMENT GROUPS .. INTERFACES ** ERROR TRAPPED : REPORT TO LISTING FILE ERROR ID : 760
  7. I think I am having the same problem. But in this version (12) I cant find the way to assign part image. Cant find the export options. This appears:
  8. Im having the exact same problem. How do i check the hierarchy? there's a strange image in my parts in the browser tree, maybe its because of that but I don't know how to solve it . The errors are these: ERROR ID : 194 ** ERROR IN HIERARCHY REFERENCE DESCRIPTION : -- NODE GROUP ID : 4 -- INIVEL_group_4_of_PART TITLE : PART REFERENCE TO UNEXISTING ID=6 ** ERROR TRAPPED : REPORT TO LISTING FILE ERROR ID : 760 WARNING ID : 690 ** WARNING IN NODE GROUP DEFINITION .. INITIAL VELOCITIES .. DOMAIN DECOMPOSITION .. ELEMENT GROUPS .. INTERFACES
  9. Hello, I am trying to setup a crash of a bumper geometry. The bumper consists in 1 curved beam and 2 crash boxes. I used contact interface type 7 but I am having some errors. ERROR ID : 59 ** ERROR IN PROPERTY/ELEMENT DEFINITION (NUMBER) DESCRIPTION : INVALID PROPERTY ID=0, FOR SHELL ELEMENT ID=2553 ERROR ID : 61 ** ERROR IN MATERIAL/ELEMENT DEFINITION (NUMBER) DESCRIPTION : INVALID MATERIAL ID=0 FOR SHELL ELEMENT ID=2554 ** ERROR TRAPPED : REPORT TO LISTING FILE ERROR ID : 760 ERROR ID : 194 ** ERROR IN HIERARCHY REFERENCE DESCRIPTION : -- SURFACE ID : 7 -- INTER_group_8_of_PART TITLE : PART REFERENCE TO UNEXISTING ID=6 ERROR ID : 119 ** ERROR IN INTERFACE SURFACE DEFINITION DESCRIPTION : -- INTERFACE ID : 1 -- INTERFACE TITLE : New INTER 1 MASTER SURFACE IS EMPTY WARNING ID : 692 ** WARNING IN SURFACE DEFINITION Some of them refer material/proprety problems but I am sure that my material and property are well defined. On top of that I have this image for the parts and I don't know why. (see attachment)