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- 2005-11-29
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- 1970-1-1
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我在做三维土石坝在自重应力下的沉降时,为了简便地基和坝体全部用的一种材料,也全部用邓肯的E-B模型,分别用两中方法计算,一种是重力一次施加,计算结果的比较好,一种是将土石坝分10层施加重力荷载,用单元的生死来控制,但是结果只算到第二步,出现这样错误:
2 EQUILIBRIUM ITERATIONS PERFORMED IN THIS TIME STEP TO REESTABLISH EQUILIBRIUM
STIFFNESS REFORMED FOR EVERY ITERATION OF THIS STEP
S U M M A T I O N O F R E A C T I O N S
(X,Y,Z - GLOBAL COORDINATES)
FORCE-X = 5.9604645E-07 FORCE-Y = 1.9669533E-06 FORCE-Z = 4.5538020E+11
1PROGRAM ADINA - VERSION 8.1.0 (build 09.12.2003) Analysis of consolidation of soil dam
R E S T A R T D A T A S A V I N G I N F O R M A T I O N
RESTART DATA IS SAVED FOR STEP 1 AT TIME EQUALS 0.100000000000E+02
*** WARNING NO. A6 ***
Element distorted, Jacobian DET= -1.89703037E+05 GROUP= 1 EL= 3
*** ERROR NO. A1101 ***
Mesh too distorted, Jacobian determinant not positive
请问,这是为什么啊?多谢大家不吝赐教,感谢! |
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