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  1. xiazhn

    Overclosure message doesn't match with the results in CAE

    Hello, everyone. I am modeling a forming problem. But the calculation diverged at the increment 545. At increment 534, the difficulty of convergence appeared, and from msg file, it readed: ***WARNING: CONTACT SURFACES ASSEMBLY_METSURF2 and ASSEMBLY_CERASURF22 NODE NUMBER 1 INSTANCE TUBE-1 IS...
  2. xiazhn

    How to debug the postprocessor program regarding to *.fil file

    Dear all, I am debugging a fortran source code dealing with the *.fil file generated by ABAQUS. To build the corresponding *.exe file, I have to use the command "abaqus make job=...". In this way, I can't see the execution process. How can I use the debug tool in visual fortran development...
  3. xiazhn

    Inactive DOF of node when I applied the moment load

    I described the load in the first poster, but I am sorry that it was not clear. Now I quote it in the first poster: "The cross section of the tube lies in the X-Y plane. I added a moment at one node at the free end of the tube with value of CM3. " In ABAQUS CAE, CM3 refers to the value of the...
  4. xiazhn

    Inactive DOF of node when I applied the moment load

    Hello Corus, I tried to follow your tipps in applying the linear distributed moments. But unfortunately the problem hasn't been solved. For pressure or hydrostatic, it is only possible to be normal to the outside surface of the tube, and it produces no moment at all. In the case that the mesh...
  5. xiazhn

    Inactive DOF of node when I applied the moment load

    Thanks. I will try next week. Have a nice weekend.
  6. xiazhn

    Inactive DOF of node when I applied the moment load

    corus, I am appreciated for your help. The further problem is how to assign a linear distributed moments(in this case, it is transfered to forces) along with the tube. This is another problem in this project that makes me headache. Using *AMPLITUDE command? But it is described in the manual as...
  7. xiazhn

    Inactive DOF of node when I applied the moment load

    Thanks for your information. I noticed this problem later. But only solid elements C3D... or axissymetric elements CAX... are supported by the postprocessor that I used. In this case, There seems to be two ways that I can follow, one is to develop new element within ABAQUS, and the second one is...
  8. xiazhn

    Inactive DOF of node when I applied the moment load

    Hello As I defined a moment load at the free end of a tube, an error occured describing the following message ***ERROR: DEGREE OF FREEDOM 6 IS NOT ACTIVE ON NODE 12 INSTANCE OUTERTUBE-1 - THIS LOADING IS NOT VALID ***NOTE: DUE TO AN INPUT ERROR THE ANALYSIS PRE-PROCESSOR HAS BEEN...
  9. xiazhn

    How to define a linear distributed moment along with the tube

    The moment load can be applied only to the sigle node or node set as a concentrated load, but the magnitude of it changed along with the tube. I tried with user subroutine, but it is only valid in applying the distributed element-based or surface-based load. Maybe *AMPLITUDE is the way to solve...
  10. xiazhn

    Mechanical properties of 34CrAlNi7

    Hello I need the mechanical properties of the Alloy 34CrAlNi7, perticularly the elasic modulus, yield stress, ultimate stress and thermal expansion in range of temperature 20°C-500°C. By the way, are there any online database for the material properties, such that I needn't always search a small...
  11. xiazhn

    Problems of calling the subroutine binrd

    Thanks. I have solved this problem. This is the problem of ansys version. After ansys5.5, there are some changes in format of .rst file. So the subroutine binrd couldn't find the appropriate record number.
  12. xiazhn

    Problems of calling the subroutine binrd

    Hello I am now transplanting a postprocessor of ANSYS 5.4 to the version 8.0. In the source code of the postprocessor in FORTRAN, I access the data using the subroutines such as BINRD or RGMGET, that were provided by ANSYS. But lacking the related documents about the format of the binary file...
  13. xiazhn

    history output of cumulative crack length

    a problem in crack propagation analysis I wanna sketch the curve of cumulative crack length versus time. but i cannont find the way to the the history output of the cumulative crack length, while it is available in .dat file. any hints are welcome.

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