Hello, i designed a car seat made of composite material (carbon fiber ). Firstly, i am creating new material and defining the carbon fiber properties then i am creating new 3D element properties. In creating new 3d element properties under local section i am creating 4 layer each thickness 0.25 and totally equal to 1.0. Secındly, i am defin,ng angles respectively -45, 0, 90, -45.
But analysis result in with this error: If you give me sime recommendations I'd appreciate it.
USER FATAL MESSAGE 9050 (SUBDMAP SEKRRS) RUN TERMINATED DUE TO EXCESSIVE PIVOT RATIOS IN MATRIX KLL.
USER ACTION: THIS OCCURS WHEN NUMERIC PROBLEMS OR POTENTIAL SINGULARITIES ARE ENCOUNTERED.
USER ACTION: THIS OCCURS WHEN NUMERIC PROBLEMS OR POTENTIAL SINGULARITIES ARE ENCOUNTERED.
[1] REVIEW GRID POINT AND COMPONENT INFORMATION PRINTED IN THE .F06 FILE (LOOK AT THE GRID POINT IDS AND DEGREE OF FREEDOM COLUMNS).
[2] EXAMINE THE F.E. MODEL NEAR THESE GRID IDS, LOOKING FOR UN-CONSTRAINED DEGREES OF FREEDOM (BOUNDARY CONDITION ISSUES), ILL-DEFINED ELEMENTS OR OTHER ANOMALIES WITHIN THE MODEL.
[3] A FREE-FREE MODAL ANALYSIS (SOL 103) CAN BE PERFORMED TO CHECK FOR RIGID-BODY MOTIONS AND DISCONTINUITIES WITHIN THE F.E. MODEL.
[4] IF USING RBE3 ENTRIES, YOU MIGHT SET "PARAM,RMRBE3RT,1". THIS PARAMETER REMOVES ROTATIONAL DEGREES OF FREEDOM FROM REFC OF ANY RBE3 WHOSE REFERENCE GRID POINT IS USED BY SOLID ELEMENTS ONLY, AND REFC HAS A ROTATIONAL DEGREE OF FREEDOM. [5] IF [1]-[4] FAIL TO DETERMINE THE PROBLEM, YOU MIGHT TRY "PARAM, BAILOUT,-1" WHICH MAY ALLOW THE MODEL TO RUN TO COMPLETION OR THE MODEL TO FAIL LATER WITH A MORE USEFUL MESSAGE. RESULTS USING "PARAM, BAILOUT" ARE OFTEN POOR.
