*** ERROR # 4002 *** in OPTISTRUCT
Altair EmployeeI am doing with a nonlinear implicit problem in optistruct.
I have created contact surface and load steps (followed 'os-1500' for nonlinear implicit problem set up, apart from that created contact surface)
But while running its showing some errors
*** ERROR # 4002 ***
Running RADIOSS engine, 1 ERROR and 0 WARNINGs have been detected.
They are listed below.
ENGINE ERROR:
** ERROR : RADIOSS IMPLICIT STOPPED DUE TO MODELLING DATA **
ISTOP=-1
NLGEOM subcase 3, engine finished
(Running in-core solution)
Volume = 6.87129E+006 Mass = 1.05875E+001
************************************************************************
ANALYSIS COMPLETED.
(1) How can I fix the issue?
(2) Is there any possibilities to edit the engine file in optistruct?
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Hi,
please share the entire .out file
************************************************************************
FINITE ELEMENT MODEL DATA INFORMATION :
---------------------------------------
Total # of Grids (Structural) : 8053
Total # of Elements : 5128
Total # of Rigid Elements : 10
Total # of Rigid Element Constraints : 876
Total # of Degrees of Freedom : 25002
Total # of Non-zero Stiffness Terms : 771777
Element Type Information
------------------------
CHEXA Elements : 4750
CPENTA Elements : 378
Load and Boundary Information
-----------------------------
FORCE Sets : 1
SPC Sets : 1
NLOAD Sets : 1
Material and Property Information
---------------------------------
PSOLID Cards : 3
PSOLIDX Cards : 3
MAT1 Cards : 2
MATX02 Cards : 1
MATX36 Cards : 1
************************************************************************
************************************************************************
OPTIMIZATION PROBLEM PARAMETERS :
---------------------------------
NO DESIGN MATERIAL OR DESIGN VARIABLES FOUND : ANALYSIS ONLY
------------------------
NLGEOM Subcase Summary :
------------------------
---------- --------- ------ -------- ------- -------- ---------- --------
Subcase ID NLPARM ID SPC ID NLOAD ID LOAD ID XHIST ID SOLVTYP ID RWALL ID
1 4 1 6
---------- --------- ------ -------- ------- -------- ---------- --------
Run Type : Analysis Only
Scratch file directory : ./
Free space: 338.802 GB
Number of CPU processors : 1
************************************************************************
************************************************************************
MEMORY ESTIMATION INFORMATION :
-------------------------------
Solver Type is: Sparse-Matrix Solver
Direct Method
Current Memory (RAM) : 400 MB
In addition a ramdisk area was allocated in memory : 200 MB
Estimated Minimum Memory (RAM) for Out of Core Solution : 17 MB
Recommended Memory (RAM) for Out of Core Solution : 19 MB
Recommended Memory (RAM) for In-Core Solution : 26 MB
DISK SPACE ESTIMATION INFORMATION :
-----------------------------------
Estimated Disk Space for Output Data Files : 4 MB
Estimated Scratch Disk Space for In-Core Solution : 9 MB
Estimated Scratch Disk Space for Out of Core Solution : 9 MB
************************************************************************
BEGINNING ANALYSIS SOLUTION ....
************************************************************************
ANALYSIS RESULTS :
------------------
ITERATION 0
Element # 4002, element type HEXA.
WARNING - Outside of recommended range: Edge Angle = 71.653
upper limit = 60.000
Element # 4003, element type HEXA.
WARNING - Outside of recommended range: Edge Angle = 71.653
upper limit = 60.000
Element # 4568, element type HEXA.
WARNING - Outside of recommended range: Edge Angle = 73.493
upper limit = 60.000
NOTE : other similar error/warning messages were suppressed,
use PARAM,CHECKEL,FULL to obtain full report
Element Quality Check Summary
-----------------------------
Total # of elements that exceeded recommended range (warning) = 8
Recommended range violations:
------------------------------------------------------------------------------
Element Property # of Recommended Range Max. Viol. Elem.
Viol. Lower Upper Value type No.
------- ------------------- -------- --------- --------- --------- --- -------
HEXA Edge Angle 8 -- 60.00 73.49 U 4568
(Scratch disk space usage for starting iteration = 9 MB)
NLGEOM subcase 1, starter running ...
*** WARNING # 4101
Running RADIOSS starter, 0 ERRORs and 4 WARNINGs have been detected.
They are listed below.
STARTER WARNING:
WARNING ID : 343
** WARNING : INITIAL PENETRATIONS IN INTERFACE
DESCRIPTION :
-- INTERFACE ID : 2
-- INTERFACE TYPE : INTER_TYPE7_2
THERE ARE 40 INITIAL PENETRATIONS
( CONCERNING 20 NODES )
STARTER WARNING:
WARNING ID : 343
** WARNING : INITIAL PENETRATIONS IN INTERFACE
DESCRIPTION :
-- INTERFACE ID : 5
-- INTERFACE TYPE : INTER_TYPE7_5
THERE ARE 40 INITIAL PENETRATIONS
( CONCERNING 40 NODES )
STARTER WARNING:
WARNING ID : 343
** WARNING : INITIAL PENETRATIONS IN INTERFACE
DESCRIPTION :
-- INTERFACE ID : 6
-- INTERFACE TYPE : INTER_TYPE7_6
THERE ARE 721 INITIAL PENETRATIONS
( CONCERNING 274 NODES )
STARTER WARNING:
WARNING ID : 343
** WARNING : INITIAL PENETRATIONS IN INTERFACE
DESCRIPTION :
-- INTERFACE ID : 7
-- INTERFACE TYPE : INTER_TYPE7_7
THERE ARE 721 INITIAL PENETRATIONS
( CONCERNING 508 NODES )
NLGEOM subcase 1, starter finished
NLGEOM subcase 1, engine running ...
*** ERROR # 4079 ***
Non-convergent nonlinear iterations for subcase 1.
*** ERROR # 4002 ***
Running RADIOSS engine, 1 ERROR and 0 WARNINGs have been detected.
They are listed below.
ENGINE ERROR:
** ERROR : RADIOSS IMPLICIT STOPPED DUE TO TIMESTEP LIMIT **
ISTOP=-2
NLGEOM subcase 1, engine finished
(Running in-core solution)
Volume = 5.12207E+005 Mass = 3.38515E-003
************************************************************************
ANALYSIS COMPLETED.
*** SOME ERRORS WERE REPORTED DURING THE RUN,
*** PLEASE VERIFY RESULTS AS THEY MAY BE INVALID.
************************************************************************
RESOURCE USAGE INFORMATION
--------------------------
MAXIMUM MEMORY USED 400 MB
IN ADDITION 200 MB RAMDISK AREA WAS ALLOCATED IN MEMORY
MAXIMUM DISK SPACE USED 1 MB
************************************************************************
************************************************************************
COMPUTE TIME INFORMATION
------------------------
EXECUTION STARTED Tue Jan 26 14:08:29 2016
EXECUTION COMPLETED Tue Jan 26 14:11:28 2016
ELAPSED TIME 00:02:58
CPU TIME 00:00:00
************************************************************************
*** PROGRAM STOPPED: FATAL ERROR(s) ENCOUNTERED.
***** END OF REPORT *****
For Useful OptiStruct Tips and Tricks, go to the URL:
http://www.altairhyperworks.com/tips.aspx
PROGRAM STOPPED DUE TO ERROR.
************************************************************************
A fatal error has occurred during computations:
*** ERROR # 4079 ***
Non-convergent nonlinear iterations for subcase 1.
ANALYSIS COMPLETED.
*** SOME ERRORS WERE REPORTED DURING THE RUN,
*** PLEASE VERIFY RESULTS AS THEY MAY BE INVALID.
*** PROGRAM STOPPED: FATAL ERROR(s) ENCOUNTERED.
************************************************************************
Dear Jiaru,
Did you got solution for the above issue ?
I am facing the same problem,tried with PCONT card also same error is repeating....
please share your suggestions
Thanks
RAM
Altair Employee
I am facing the same problem,tried with PCONT card also same error is repeating....
Try with PCNTX7 in OptiStruct which is same as Type7 contact in RADIOSS.
Try with PCNTX7 in OptiStruct which is same as Type7 contact in RADIOSS.
how to assign PCNTX7 in optistruct??
Altair EmployeeRam,
When you are in PCONT card, scroll down to PCONTX and change type to PCONTX7
<?xml version="1.0" encoding="UTF-8"?>
Hi,
please share the entire .out file