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With stress upper bound as 10MPa, it works, but below 7 Mpa, it doesnt converge.
could you share the .out file?
As you're decresing the stress limit, it is probably harder to converge, as you're pushing it harder.
NOTE # 9199 MSGLMT=STRICT is active, all messages will be printed. You can suppress some less important warning messages by use of MSGLMT=BRIEF or UNREF (in config file or in the input data). 1 PARAM(s) were set: CHECKEL,NO *** WARNING 1932: PSOLID ID 10 is not referenced. *** WARNING # 7338 GRID 49765 in DSHAPE card 10 is an isolated grid. *** WARNING # 7338 GRID 49766 in DSHAPE card 10 is an isolated grid. *** WARNING # 7338 GRID 49785 in DSHAPE card 10 is an isolated grid. *** WARNING # 7345 Free-Shape detects nonequivalent elements or cracks near GRID 27902. *** WARNING # 7345 Free-Shape detects nonequivalent elements or cracks near GRID 27902. *** WARNING # 7345 Free-Shape detects nonequivalent elements or cracks near GRID 27909. *** INFORMATION # 815 The total number of rigid elements, whose rotational dependent d.o.f. are removed because there is no need to constrain those d.o.f., is 18. NOTE # 1852 AUTOMATIC SCREENING is activated. Use DSCREEN,AUTO,OFF to disable automatic screening.
************************************************************************
FINITE ELEMENT MODEL DATA INFORMATION :---------------------------------------
Total # of Grids (Structural) : 75742 Total # of Elements : 304214 Total # of Rigid Elements : 18 Total # of Rigid Element Constraints : 2304 Total # of Degrees of Freedom : 228837 (Structural) Total # of Non-zero Stiffness Terms : 4423938
Element Type Information ------------------------
CTETRA Elements : 304214
Load and Boundary Information -----------------------------
FORCE Sets : 1 SPC Sets : 1
Material and Property Information ---------------------------------
PSOLID Cards : 2 MAT1 Cards : 1
OPTIMIZATION PROBLEM PARAMETERS :---------------------------------
Objective Function : Minimize Mass
------------------ Response Summary : ------------------
Number of mass responses : 1 Number of stress responses : 904
------------------------ Static Subcase Summary : ------------------------
---------- -------- ------- --------------------- Subcase ID SPC ID LOAD ID Preloading Subcase ID ---------- -------- ------- --------------------- 10 10 11 ---------- -------- ------- ---------------------
--------------------------- Design Parameters Summary : ---------------------------
Total # of free-shape cards : 1
--------------------------------- Optimization Parameters Summary : ---------------------------------
Maximum Number of Iterations : 30 Convergence Tolerance : 5.0000E-03 Step Size (Shape) : 0.2000
Run Type : Free-Shape Optimization
Restart from previous solution : No Run at location : Z:/sim_daten/z30/FEM/bijusa1/tesla_X/fem/closeout_freeshape/ Scratch file directory : Z:/sim_daten/z30/FEM/bijusa1/tesla_X/fem/closeout_freeshape/ Free space: 2568.884 GB Number of CPU processors : 1
MEMORY ESTIMATION INFORMATION :-------------------------------
Solver Type is: Sparse-Matrix Solver Direct Method Memory (RAM) Allocated in Preprocessor : 845 MB Estimated Memory (RAM) for Out of Core Solution : 795 MB Estimated Memory (RAM) for In-Core Solution : 845 MB (Note: The Minimum Memory Requirement is limited by Output Module.) DISK SPACE ESTIMATION INFORMATION :-----------------------------------
Estimated Disk Space for Output Data Files : 519 MB Estimated Scratch Disk Space for In-Core Solution : 1226 MB Estimated Scratch Disk Space for Out of Core Solution : 1753 MB
BEGINNING OPTIMIZATION SOLUTION ....
OPTIMIZATION HISTORY INFORMATION :----------------------------------
ITERATION 0 *** INFORMATION # 3454 MPC, RBE# (and other rigids) and JOINTG constraints for subcase 10 will be enforced with lagrange multipliers. List of Auto-SPC d.o.f.s for loadcase 10 Total number of Auto-SPC d.o.f.s = 2304 ------------------------------ Grid No. Component ------------------------------ 196 4 5 6 197 4 5 6 198 4 5 6 199 4 5 6 200 4 5 6 201 4 5 6 202 4 5 6 203 4 5 6 204 4 5 6 205 4 5 6 206 4 5 6 207 4 5 6 208 4 5 6 209 4 5 6 210 4 5 6 211 4 5 6 212 4 5 6 213 4 5 6 214 4 5 6 215 4 5 6 216 4 5 6 217 4 5 6 218 4 5 6 219 4 5 6 220 4 5 6 221 4 5 6 222 4 5 6 223 4 5 6 224 4 5 6 225 4 5 6 226 4 5 6 227 4 5 6 228 4 5 6 229 4 5 6 ------------------------------ Because of PARAM, PRGPST, 100, Auto-SPC printing is limited to 100 dofs. (Scratch disk space usage for starting iteration = 1024 MB)(Running in-core solution)
Objective Function (Minimize MASS ) = 2.55901E-04Maximum Constraint Violation % = 0.53291E+02Volume = 2.13250E+05 Mass = 2.55901E-04
Subcase Compliance Epsilon 10 5.206536E+00 2.217249E-10
Note : Epsilon = Residual Strain Energy Ratio.
RETAINED RESPONSES TABLE------------------------------------------------------------------------------------Response Type Response Subcase Grid/ DOF/ Response Objective Viol.User-ID Label /RANDPS Element/ Comp Value Reference/ % /Model MID/PID/ /Reg Constraint +Frqncy Mode No. Bound /Times ------------------------------------------------------------------------------------ 10 MASS mass -- -- TOTL 2.559E-04 MIN 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V------------------------------------------------------------------------------------
MOST VIOLATED CONSTRAINTS TABLE------------------------------------------------------------------------------------Response Type Response Subcase Grid/ DOF/ Response Constraint Viol.User-ID Label /RANDPS Element/ Comp Value Bound % /Model MID/PID/ /Reg +Frqncy Mode No. /Times ------------------------------------------------------------------------------------ 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V------------------------------------------------------------------------------------ITERATION 1
Objective Function (Minimize MASS ) = 2.55901E-04 % change = 0.00Maximum Constraint Violation % = 0.53291E+02Volume = 2.13250E+05 Mass = 2.55901E-04
MOST VIOLATED CONSTRAINTS TABLE------------------------------------------------------------------------------------Response Type Response Subcase Grid/ DOF/ Response Constraint Viol.User-ID Label /RANDPS Element/ Comp Value Bound % /Model MID/PID/ /Reg +Frqncy Mode No. /Times ------------------------------------------------------------------------------------ 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V------------------------------------------------------------------------------------ *** WARNING # 7351 The optimization process is terminated due to excessive mesh distortion. Please check the .HM.elcheck.cmf file for a list of distorted elements. If the final design is not satisfactory, it is recommended to remesh it to improve the mesh quality, and perform a second stage optimization.
************************************************************************ INFEASIBLE DESIGN (AT LEAST ONE CONSTRAINT VIOLATED).
RESOURCE USAGE INFORMATION--------------------------
MAXIMUM MEMORY USED 845 MB IN ADDITION 33 MB MEMORY WAS ALLOCATED FOR TEMPORARY USE MAXIMUM DISK SPACE USED 1212 MB
COMPUTE TIME INFORMATION------------------------
EXECUTION STARTED Tue Aug 30 11:26:27 2022 EXECUTION COMPLETED Tue Aug 30 11:27:49 2022 ELAPSED TIME 00:01:21 CPU TIME 00:00:49
***** END OF REPORT ***** For Useful OptiStruct Tips and Tricks, go to the URL:http://www.altairhyperworks.com/tips.aspx
NOTE # 9199 MSGLMT=STRICT is active, all messages will be printed. You can suppress some less important warning messages by use of MSGLMT=BRIEF or UNREF (in config file or in the input data). 1 PARAM(s) were set: CHECKEL,NO *** WARNING 1932: PSOLID ID 10 is not referenced. *** WARNING # 7338 GRID 49765 in DSHAPE card 10 is an isolated grid. *** WARNING # 7338 GRID 49766 in DSHAPE card 10 is an isolated grid. *** WARNING # 7338 GRID 49785 in DSHAPE card 10 is an isolated grid. *** WARNING # 7345 Free-Shape detects nonequivalent elements or cracks near GRID 27902. *** WARNING # 7345 Free-Shape detects nonequivalent elements or cracks near GRID 27902. *** WARNING # 7345 Free-Shape detects nonequivalent elements or cracks near GRID 27909. *** INFORMATION # 815 The total number of rigid elements, whose rotational dependent d.o.f. are removed because there is no need to constrain those d.o.f., is 18. NOTE # 1852 AUTOMATIC SCREENING is activated. Use DSCREEN,AUTO,OFF to disable automatic screening. ************************************************************************ FINITE ELEMENT MODEL DATA INFORMATION :--------------------------------------- Total # of Grids (Structural) : 75742 Total # of Elements : 304214 Total # of Rigid Elements : 18 Total # of Rigid Element Constraints : 2304 Total # of Degrees of Freedom : 228837 (Structural) Total # of Non-zero Stiffness Terms : 4423938 Element Type Information ------------------------ CTETRA Elements : 304214 Load and Boundary Information ----------------------------- FORCE Sets : 1 SPC Sets : 1 Material and Property Information --------------------------------- PSOLID Cards : 2 MAT1 Cards : 1 ************************************************************************ ************************************************************************ OPTIMIZATION PROBLEM PARAMETERS :--------------------------------- Objective Function : Minimize Mass ------------------ Response Summary : ------------------ Number of mass responses : 1 Number of stress responses : 904 ------------------------ Static Subcase Summary : ------------------------ ---------- -------- ------- --------------------- Subcase ID SPC ID LOAD ID Preloading Subcase ID ---------- -------- ------- --------------------- 10 10 11 ---------- -------- ------- --------------------- --------------------------- Design Parameters Summary : --------------------------- Total # of free-shape cards : 1 --------------------------------- Optimization Parameters Summary : --------------------------------- Maximum Number of Iterations : 30 Convergence Tolerance : 5.0000E-03 Step Size (Shape) : 0.2000 Run Type : Free-Shape Optimization Restart from previous solution : No Run at location : Z:/sim_daten/z30/FEM/bijusa1/tesla_X/fem/closeout_freeshape/ Scratch file directory : Z:/sim_daten/z30/FEM/bijusa1/tesla_X/fem/closeout_freeshape/ Free space: 2568.884 GB Number of CPU processors : 1 ************************************************************************ ************************************************************************ MEMORY ESTIMATION INFORMATION :------------------------------- Solver Type is: Sparse-Matrix Solver Direct Method Memory (RAM) Allocated in Preprocessor : 845 MB Estimated Memory (RAM) for Out of Core Solution : 795 MB Estimated Memory (RAM) for In-Core Solution : 845 MB (Note: The Minimum Memory Requirement is limited by Output Module.) DISK SPACE ESTIMATION INFORMATION :----------------------------------- Estimated Disk Space for Output Data Files : 519 MB Estimated Scratch Disk Space for In-Core Solution : 1226 MB Estimated Scratch Disk Space for Out of Core Solution : 1753 MB ************************************************************************ BEGINNING OPTIMIZATION SOLUTION .... ************************************************************************ OPTIMIZATION HISTORY INFORMATION :---------------------------------- ITERATION 0 *** INFORMATION # 3454 MPC, RBE# (and other rigids) and JOINTG constraints for subcase 10 will be enforced with lagrange multipliers. List of Auto-SPC d.o.f.s for loadcase 10 Total number of Auto-SPC d.o.f.s = 2304 ------------------------------ Grid No. Component ------------------------------ 196 4 5 6 197 4 5 6 198 4 5 6 199 4 5 6 200 4 5 6 201 4 5 6 202 4 5 6 203 4 5 6 204 4 5 6 205 4 5 6 206 4 5 6 207 4 5 6 208 4 5 6 209 4 5 6 210 4 5 6 211 4 5 6 212 4 5 6 213 4 5 6 214 4 5 6 215 4 5 6 216 4 5 6 217 4 5 6 218 4 5 6 219 4 5 6 220 4 5 6 221 4 5 6 222 4 5 6 223 4 5 6 224 4 5 6 225 4 5 6 226 4 5 6 227 4 5 6 228 4 5 6 229 4 5 6 ------------------------------ Because of PARAM, PRGPST, 100, Auto-SPC printing is limited to 100 dofs. (Scratch disk space usage for starting iteration = 1024 MB)(Running in-core solution) Objective Function (Minimize MASS ) = 2.55901E-04Maximum Constraint Violation % = 0.53291E+02Volume = 2.13250E+05 Mass = 2.55901E-04 Subcase Compliance Epsilon 10 5.206536E+00 2.217249E-10 Note : Epsilon = Residual Strain Energy Ratio. RETAINED RESPONSES TABLE------------------------------------------------------------------------------------Response Type Response Subcase Grid/ DOF/ Response Objective Viol.User-ID Label /RANDPS Element/ Comp Value Reference/ % /Model MID/PID/ /Reg Constraint +Frqncy Mode No. Bound /Times ------------------------------------------------------------------------------------ 10 MASS mass -- -- TOTL 2.559E-04 MIN 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V------------------------------------------------------------------------------------ MOST VIOLATED CONSTRAINTS TABLE------------------------------------------------------------------------------------Response Type Response Subcase Grid/ DOF/ Response Constraint Viol.User-ID Label /RANDPS Element/ Comp Value Bound % /Model MID/PID/ /Reg +Frqncy Mode No. /Times ------------------------------------------------------------------------------------ 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V------------------------------------------------------------------------------------ITERATION 1 Objective Function (Minimize MASS ) = 2.55901E-04 % change = 0.00Maximum Constraint Violation % = 0.53291E+02Volume = 2.13250E+05 Mass = 2.55901E-04 Subcase Compliance Epsilon 10 5.206536E+00 2.217249E-10 Note : Epsilon = Residual Strain Energy Ratio. RETAINED RESPONSES TABLE------------------------------------------------------------------------------------Response Type Response Subcase Grid/ DOF/ Response Objective Viol.User-ID Label /RANDPS Element/ Comp Value Reference/ % /Model MID/PID/ /Reg Constraint +Frqncy Mode No. Bound /Times ------------------------------------------------------------------------------------ 10 MASS mass -- -- TOTL 2.559E-04 MIN 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V------------------------------------------------------------------------------------ MOST VIOLATED CONSTRAINTS TABLE------------------------------------------------------------------------------------Response Type Response Subcase Grid/ DOF/ Response Constraint Viol.User-ID Label /RANDPS Element/ Comp Value Bound % /Model MID/PID/ /Reg +Frqncy Mode No. /Times ------------------------------------------------------------------------------------ 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 35926 SVM 9.197E+00 < 6.000E+00 53.3 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16083 SVM 8.826E+00 < 6.000E+00 47.1 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 16586 SVM 8.793E+00 < 6.000E+00 46.6 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34675 SVM 8.641E+00 < 6.000E+00 44.0 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V 11 STRES stress 10 34715 SVM 8.598E+00 < 6.000E+00 43.3 V------------------------------------------------------------------------------------ *** WARNING # 7351 The optimization process is terminated due to excessive mesh distortion. Please check the .HM.elcheck.cmf file for a list of distorted elements. If the final design is not satisfactory, it is recommended to remesh it to improve the mesh quality, and perform a second stage optimization. ************************************************************************ INFEASIBLE DESIGN (AT LEAST ONE CONSTRAINT VIOLATED). ************************************************************************ RESOURCE USAGE INFORMATION-------------------------- MAXIMUM MEMORY USED 845 MB IN ADDITION 33 MB MEMORY WAS ALLOCATED FOR TEMPORARY USE MAXIMUM DISK SPACE USED 1212 MB ************************************************************************ ************************************************************************ COMPUTE TIME INFORMATION------------------------ EXECUTION STARTED Tue Aug 30 11:26:27 2022 EXECUTION COMPLETED Tue Aug 30 11:27:49 2022 ELAPSED TIME 00:01:21 CPU TIME 00:00:49 ************************************************************************ ***** END OF REPORT ***** For Useful OptiStruct Tips and Tricks, go to the URL:http://www.altairhyperworks.com/tips.aspx
Would refining the mesh in concerned regions make a difference?
