Abaqus 使用中的一些经验 - 图文

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14.

Go to the Job module. Click on the Create Job button. Name the job tension. Click on Continue. We are not going to change of the options so press the Ok button. Now click on the Job Manager button. Click on Submit (check the status in the window) to create an .inp file and run that file. This will also create a tension.odb file for ABAQUS CAE to use in post processing.

Click on the Results button. This will automatically open the Visualization module for you to view your output. You can go to Result (top tool bar) and click Field Output to see the various outputs you have for this model. The image below shows the (von) Mises stress as a contour plot. Follow the steps in CAE to produce this plot.

15.

对一个简单固结算例的修改验证

算例来源：ABAQUS Benchmarks Manual 1.14.1 The Terzaghi consolidation problem

terzaghi_cpe8p.inp

出现问题：在fetch job 后，通过file>import>model,创建job提交运算后，出现abored, 问题提示为：***ERROR:

PERMEABILITY IS SPECIFIED FOR ELEMENT **, BUT THE INITIAL VOID RATIO HAS NOT BEEN DEFINED. USE *INITIAL CONDITIONS TO PRESCRIBE THE VALUE 解决办法：

1．有些命令cae不支持，改用command 计算，输入abaqus interactive job运行后，

错误提示，有下列图形出现：

并且在result>field output中没有VOIDR,也没有history output,对下面的plot超作 利，也不能验证结果的正确性，故需要修改原inp文件。

2．仔细分析terzaghi_cpe8p.inp，发现其很多条件与原问题叙述不同，故一一修改（1）*PERMEABILITY,SPECIFIC=1.0

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没有不之：

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8.47E-9,1.0 8.47E-8,1.5

（2） *INITIAL CONDITIONS,TYPE=RATIO

NALL,1.5

（3），原计算图中出现一个单元“骨折”现象，不确定其产生原因。只知原inp中定义了一个*NSET,NSET=FILE 141, 就在这个FILE地方出现折断，故把这个定义去掉，不影响结果。 最后的inp为： *HEADING

TERZAGHI CONSOLIDATION *ELEMENT,TYPE=CPE8P,ELSET=ONE 1,1,3,23,21,2,13,22,11 *ELGEN,ELSET=ALL 1,10,20

*ELSET,ELSET=P1 6,7,8 *NODE 1, 2,25. 3,50. 201,,100. 202,25.,100. 203,50.,100. *NGEN,NSET=NALL 1,201,10 2,202,20 3,203,10 *NSET,NSET=TOP 201,202,203 *NSET,NSET=BASE 1,2,3

*SOLID SECTION,MATERIAL=A1,ELSET=ALL *MATERIAL,NAME=A1 *ELASTIC 1.E8,.3

*PERMEABILITY,SPECIFIC=1.0 8.47E-9,1.0 8.47E-8,1.5

*INITIAL CONDITIONS,TYPE=RATIO NALL,1.5 *BOUNDARY BASE,1,2 NALL,1

*RESTART,WRITE,FREQUENCY=999

**************************************** *STEP

SUDDENLY APPLIED LOAD

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