DIRECT METHOD
ITERATION VELOCITY RELATIVE VELOCITY RELATIVE FORCE SOLVING TIME
NUMBER NORM ERROR NORM ERROR NORM (SEC)
DAMPING IS ADDED (DAMPING COEFFICIENT = 0.10000000E-10)
1 0.8094225086E+05 0.2340407337E-02 0.4494712050E+01 0.062
2 0.8094222089E+05 0.2009658737E-02 0.9761662527E+00 0.062
3 0.8094280098E+05 0.2895629832E-02 0.2635763971E+01 0.063
4 0.8094266382E+05 0.2965262991E-02 0.9357400108E+00 0.062
5 0.8094294556E+05 0.3269660614E-02 0.2376982193E+01 0.094
Warning: failure in log extrap. of flow stress
6 0.8094275912E+05 0.3380636615E-02 0.9228678067E+00 0.062
7 0.8094311580E+05 0.2610302385E-02 0.3165387246E+01 2.793 SP
Warning: failure in log extrap. of flow stress
8 0.8094068869E+05 0.2644868380E-02 0.9534541744E+00 2.808 SP
9 0.8094208825E+05 0.2665965511E-02 0.4752534470E+01 2.840 SP
Warning: failure in log extrap. of flow stress
10 0.8094087411E+05 0.2653444336E-02 0.9785858669E+00 2.824 SP
11 0.8094216461E+05 0.2653720745E-02 0.4533381055E+01 2.808 SP
Warning: failure in log extrap. of flow stress
12 0.8094092785E+05 0.2656102510E-02 0.9765484416E+00 2.839 SP
13 0.8094220238E+05 0.2656632801E-02 0.4579322110E+01 2.793 SP
Warning: failure in log extrap. of flow stress
14 0.8094095388E+05 0.2656376944E-02 0.9770003769E+00 2.793 SP
15 0.8094222108E+05 0.2656408377E-02 0.4575359893E+01 2.808 SP
Warning: failure in log extrap. of flow stress
16 0.8094096782E+05 0.2656455996E-02 0.9769620311E+00 2.808 SP
17 0.8094223152E+05 0.2656485208E-02 0.4576749920E+01 2.808 SP
Warning: failure in log extrap. of flow stress
18 0.8094097583E+05 0.2656476308E-02 0.9769755359E+00 2.918 SP
19 0.8094223776E+05 0.2656475216E-02 0.4576727107E+01 2.949 SP
請(qǐng)問，這是什么原因造成的。。。