ABAQUS错误提示信息
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ABAQUS错误提示信息
Q: an error occurred while I was running abaqus:
ABAQUS error:the executable
C:\abaqus\6.5-1\exec\standard.exe
Aborted with system error "deny access" (error code 5)
Answer:
Look at the DAT and MSG files. Do you have warning or error? If not, there are three common reasons:
- the parameter pre_memory in abaqus_v6.env is set too large
- a problem in the user subroutine. Check that the correct parameters are used when calling user subroutines in the INP file. You can try debugging user subroutines with a simple example to make sure they're correct. In addition, when writing user subroutines, you should pay attention to setting up as many error prompts as possible.
- ABAQUS's own bug. You can try to get rid of unnecessary special settings in the model, and use the default values of ABAQUS as much as possible. If the initial model is OK and the error information appears after some parameters have been modified, you can try to restore these parameters one by one to the initial state.
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Is the software not working out?
If you take a few steps, look at the.Dat and.Msg files, search for error, and see what the specific problem is
The grammar seems right
In general, the tie binding constraint: the action is to bind the two parts of the model together, without relative movement between the two, equivalent to welding together. If A and B are A binding, and B with node degree of freedom always exactly the same, this is the same effect with the coupling of ANSYS, ABAQUS in the surface and face binding is the degree of freedom coupling surface corresponding to the node. The definition of Tie master face is similar to that of contact. When the stiffness, size and roughness are contradictory, the size and roughness are the main factors
However, contact requires add and remove operations, and tie does not require such operations. It only needs to be defined before the start of the analysis step, and no action is performed in the analysis step.
If the zero pivot appears in the MSG file, it shows that the InP has defined the over constraint condition, and the ABAQUS cannot solve the constraint problem automatically. For example, in some part, both the tie and the contact are defined, and the constraint appears. The solution is to set the type to node region when you select the tie or contact slave surface, and then select the region without including the adjacent common nodes.
Besides, it should be helpful to make the distance slightly larger.
Finally, try more and think more. What is the problem after solving the problem, how to solve it, huh, huh?
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Detected, lock, file, Job-1.lck., confirm, that, no, applications, are, attempting, to, write, to, the, output, database, associated, with, this, other, job, before,, removing, the, Please, lock, resubmitting., file, and
Just delete this
Lck file (that is, the lock on the calculated file lock),
The file is generated during the calculation,
To prevent its program or artificially modifying the relevant documents of the job file,
After the calculation is normal, the.Lck file will be deleted automatically,
This file will remain when a general break calculation is committed,
If you run with the InP of the same name, it will appear:
Error in job Job-1: Detected lock file Job-1.lck. Please confirm that no other applications are attempting to write to the output database associated with this job before removing the lock file and resubmitting
Delete the.Lck file
-- -- -- -- --
The model does not count or does not converge. You need to go to the monitor, MSG file to see the cause, and how to analyze the information This requires specific analysis of specific issues, but there are some commonalities. Here's just a general summary of what you're trying to do. If you see this post and think that your warning has been solved, I'm afraid you're disappointed. No convergence was creepy, often need a headache medicine foot. Contact, element type, boundary conditions, grid quality and the combination of them can produce many warnings for all sorts of strange things. Try to know the problem with a warning message, and only the fairy can do it. We are gratified that a warning has been solved ten times and has been resolved with reference to this aggregation.
Be similar to:
Fixed, time, is, too, large
Too, many, attamps, have, been, made
THE, SOLUTION, APPEARS, TO, BE, DIVERGING.
CONVERGENCE ISJUDGED UNLIKELY.
Time, increment, required, is, less, than, the, minimum, specified
This kind of information is almost useless information (not telling you anything useful except telling your model analysis fails). You should look for other information to investigate. According to experience, the small incremental step may not be able to converge, although some people have reported a good precedent, I have never encountered, and never that extravagant hopes. So I usually start with model settings.
It must be stated that the nature of Error and warning is quite different. Error means that the operation fails, but appears, warning may be counted, and some operations must appear warning (for example, the contact analysis must have a negative eigenvalue, which is described below). Many warnings are only notifications, or just a few words, not necessarily a model. For example, the following warning can be completely ignored:
Xxxxx will (not) printed, this is only to inform you, some things do not output. Also:
参数频率不能与参数字段一起使用。
它将被忽略(都说某某被忽视了)。
一个系列
如果模型能算,且结果合理,那么大部分警告信息可以不管。
但是以下除外:
1数值奇异性(数值奇异):刚体位移(欠约束)
求解问题。
当node105数值奇异处理实例
桩自由度1比= 1.735e13
2零轴(零主元):过约束或者欠约束。
这2个问题一般都意味着模型约束存在问题。
1)、都会伴随着产生大量负特征值解决方案当然第一步是检查约束了2)。
B系列
有一些直接导致计算中止,那就得仔细分析了,比如:
在ABAQUS /标准1 xxxxx是无效的(告诉你这种计算标准不支持了,换别的)
2个失踪的财产
在步检查材料属性是不是都加上了如果有梁单元,看看梁法向定义对了没有特性。
3检测job-1.lck锁文件。
请确认没有其他应用程序试图写入与之相关联的输出数据库。
这项工作将锁文件并重新提交之前。
删除。
LCK文件就可以了,它是一个自动生成的文件。
你也可以另存为(另取名),再运算。
4刚性部分XX是失踪的一个参考点
刚体(或刚体约束)都必须通过凳子——给它定义一个参考点参考点(RP),载荷都加在这个RP上。
5 54种元素的面积为零、小或负。
检查坐标或节点编号,或修改网格种子。
8的元素已经在元素集errelemareasmallnegzero鉴定
这个一般是节点编号不对的问题。
必须是逆时针方向。
6的256 MB,已被指定为standard_memory值太小,运行分析,必须增加。
这个
对于standard_memory最小可能值是470 MB
7 hm ABA的问题:集合和面的几何的名称最好不要用特殊符号和数值(特别是从HM转过来),全部用英文字母是最安全的。
8令很多人抓狂的错误代码5
1)使用了子程序,子程序有问题,(例如数组定义跟实际赋值不一致,这个我也遇到过)
2) there is a problem with the model. The model is very large and complex (I haven't met it)
Please, make, sure, that, the, mesh, density, of, the, slave,, surface, in, the, tie
Pair (mbly__pickedset37_cns_, assembly__pickedsurf36), is, finer, than, the, master, surface.
The, analysis, may, run, slower, may, yield, inaccurate, results, and, may, require, more, memory,, if, this, is, case, not, the
3) there is no room for the hard disk (this does not actually cause error code 5, but the error is positive), or the memory is too small, or the file is too large
4) try to shut down antivirus software (especially Kaba)
5) some people think that the boundary condition is incorrect, and it will also cause this mistake
9 system error code 29539
Turn off antivirus software and try.
"**ERROR: Issue cannot be deleted Not all data Released"
In windows, click the "control panel" - "system" - "advanced" -
"Performance settings" - "data execution protection" command,
Add pre.exe and standard.exe to it. Try again after restart
The "Surfaces associated with analytical rigid part MANDREL may
have their orientation flipped"
The contact surface is defined against the direction of the rigid body, in contact with the definition of local Editflip
12, CONTACT, PAIR (ASSEMBLY_BLANKBOT, ASSEMBLY_TIE-1_DIEDURF)
NODE BLANK-1.5 IS OVERCLOSED
BY 0.0512228, WHICH, IS, TOO, SEVERE
This is often because the normal direction of the contact surface is defined backwards. When defining the rigid body and the shell of the surface, pay attention to the selection of the outside
13123456 elements are distorted. Excessive, distortion, of, element, number, 5, of, instance, PART-1-1
If there is a subroutine, it is generally not the problem of material setting, that is, the boundary conditions
"XML parsing failure for job Shutting check down socket and terminating all further messages. Please"
The,.Log,.Dat,.Sta, or,.Msg, files, for, information, about,, the, status, job., of, the
/viewthrea... 26amp; typeid=68
The The number of history output requests in this ABAQUS
analysis (>5000)
May, cause, SIGNIFICANT, performance, problems, during, analysis, and, postprocessing
Too many output items, fear of insufficient hardware resources. If you make sure that the hardware is enough, this one is not afraid. In general, you should reduce output items in History and try to output what you are most interested in.
16, Value, for, parameter, nset, will, be, truncated, to,, characters
The nset name is too long, and the 80 character limit
17 compilation - ifort.exe problem
Problem, during, compilation - ifort.exe, not,, found, in, PATH.
There is no installed or two version conflict during installation. Check the settings for the environment variables; and then
Verify, let's see if the subroutine work can pass
C series
As mentioned above, there are many warning and must mean that your model has problems. What is often asked:
1 negative eigenvalue problem
THE, SYSTEM, MATRIX, HAS, 8, NEGATIVE, EIGENVALUES.
Negative eigenvalue is the inevitable product of nonlinear analysis. So don't make a fuss. Even in the course of time, you will be blind to what you are familiar with. If something goes wrong, you can check to see if there is any accompanying
Numerical sigularity (numerical singular) and Zero pivot (zero principal component) are generated. If not, we can refer to these aspects:
1) rigid body displacement
2) unit abnormalities, excessive deformation, excessive distortion, etc.
3) there is a negative slope of the stress-strain relationship
4) if there is a fluid, there may be a negative eigenvalue if the container deforms
However, there will be no warning, this is allowed
5) instability occurs
2, The, ratio, of, deformation, speed, to, wave, speed, exceeds,
This warning refers to the unit deformation velocity V (element
maximum deformation rate / characteristic size) and the expansion wave velocity C
The ratio of (obtained by material constitutive relation) is more than 1.
There are several solutions to this problem:
(1) check whether the unit is closed (parameter settings have an order of magnitude errors), this error is often committed by novices;
(2) check mesh quality;
(3) check the speed of loading and speed down if conditions permit. The method is also effective, but in many ways
You can't slow down;
(4) adjusting TIME, SCALING, FACTOR in STEP; adjusting STEP in
MASS SCALING FACTOR;
(5) plus *SECTION, CONTROLS, NAME=SC, DISTORTION, CONTROL,
LENGTH RATION=0.1
Or YES, too, in front of MATERIAL, or * DIAGNOSTICS,
DEFORMATION SPEED CHECK=OFF;
Or add *DIAGNOSTICS,
CUTOFF RATIO=RATIO (concrete value), in other
The method is modified and there is also an increase in the number of cases in use
Keyword method, see
/thread-862510-1-1.html (17 floor)
3, zero, force/ZERO, MOMENT problems
THERE, IS, ZERO, MOMENT, EVERYWHERE, IN, THE, MODEL, BASED,, ON, THE, DEFAULT
CRITERION., PLEASE, CHECK, THE, VALUE, OF, THE, AVERAGE,, MOMENT, DURING, THE
CURRENT, ITERATION, TO, VERIFY, THAT, THE, MOMENT, IS, SMALL,, ENOUGH, TO, BE
TREATED, AS, ZERO., IF, NOT, PLEASE, USE, THE, SOLUTION,, CONTROLS, TO, RESET
THE, CRITERION, FOR, ZERO, MOMENT.
The warning is to tell you there is no bending moment in the model, and no problem, you can continue to calculate.
If the characteristic singular value occurs in the prompt, the problem of convergence may arise.
"Degree of freedom is be not active in this model and can not restrained"
The finite element software calculates the rotational degrees of freedom for the solid step, so the software will ignore the 456 degrees of freedom you limit in the boundary condition
The, option, *boundary, type=displacement, has, been, used, check, status, file, between, steps,, for, warnings,, on, any, jumps
Prescribed, across, the, steps, in, values, of, translational, dof., For, rotational, displacement, DOF, make,, sure, that, there, are
No, such, jumps.All, jumps, in, displacements, across, steps, ignored., are
You use the displacement boundary condition, but in translational freedom, there may be mutations in different analysis steps (you can look inside the sta file),
And there should be no change in the degree of freedom of rotation. Notice the nature of the warning, generally because you use the displacement loading method, all out of this.
The "The strain increment has exceeded fifty times the strain to cause first yield at 377 points"
Check that the constraint is not enough, the constraint is
enough, do not care, this just inform you, your model plastic strain is great, generally not much problem.
The "nodes are used more than once as a slave node in *TIE keyword.One of the *TIE constraints at each of these"
Nodes, have, been, identified, in, node, set, WarNodeOverconTieSlave
When defining contacts, a common node is defined several times, so that there may be an over bound problem (just possible)
8模型中有2个不连通区域。
可能是接触面由空隙,最好在接触属性中定义一个容差范围。
一般各个部分之间定义接触,ABA都会这样通知用户的,只要接触设置对了,一般没事。
在124个节点的非自由度上指定了9个边界条件。
节点的节点集warnnodebciactivedof已确定
边界条件定义的有问题:在124个节点的非自由度上有边界加载
10塑性和蠕变/连接器摩擦算法不收敛
一般是塑性应变太大,单元扭曲导致的。
可以先改为弹性模型看看是否收敛;
11最大增量调整与平均特征的比值
长度在节点10868实例jiti1表面上对1.82846e-02(assembly_jq22,assembly_q22)。
可以通过调大预设值消除该提示和检查网格质量。
12元42例soil3-1扭曲得变
应改进单元质量
13个650个节点要么与它们各自的主面相交,要么在调整区之外。
改改领带里的公差试试
14个从属部分实例不能编辑或分配网格属性。
模型树--装配-打击部分右键--做出独立也可以到模型树部分步展开点网格。
15人才比NNN元素超过100到1。
单元划分网格长宽比不合适如果这些单元在不重要的区域(对结果肯定有些影响,
影响大小取决于这三个单元的位置,在模型中的作用等),而且能计算,那就没问题了
16 123要素失真
存在单元扭曲,如果这些单元在不重要的区域(对结果肯定有些影响,
影响大小取决于这三个单元的位置,在模型中的作用等),而且能计
算,那就没问题了(同15)
17 ***警告:节点6上的自由度1没有激活-这个边界
条件被忽略
约束了单元没有得自由度对求解没有影响,可以查看下
一个不存在的空腔或表面的名字
检查一下你的输出設定裡是不是有些集或表面沒有設定到
24 123个节点可能有不正确的正常定义。
节点已确定在节点集warnnodeincorrectnormal。
先用看看warnnodeincorrectnormal在哪儿。
这个不一定是致命的警告,有时候可以忽略如果模型不收敛,可以检查下是否有过约束,
在接触上存在边界条件或加载。
D系列
1上文已经说过,类似于
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错误:太多的attamps了
太多的attamps已经作出了…
解决方案似乎是发散的。
收敛下不可能。
所需的时间增量小于指定的最小值。
分析输入文件处理器出错。
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这样的信息几乎是无用信息(除了告诉你的模型分析失败以外,没有告诉你任何有用的东西)。
宜再查找别的信息来考察。
比如:
1)数值奇异解的问题。
数值分类
当处理node105实例表示:数值奇异:刚体位移(欠约束)
2)零轴表示:过约束
这样的信息(当然不仅仅是这些),才是比较有价值的。
2对于时间增量小于规定的最低要求
太多的attamps了
3对于”网格扭曲”的警告:过度扭曲的元素前面有提到。
第一步:采用二楼底下的方法用显示查
看”errelemexcessdistortion-step1”在模型的哪些部位,做到心中有数。
第二步:检查模型的网格质量:网格步---验证----分析检查选取模型。
这种情况,一开始计算即出现”扭曲的元素”的信息。
另外:很多其他问题也会网格扭曲警告。
比如,
The import of geometric model is wrong, need to be repaired, unit type selection error, boundary condition error, material property error, contact setting unreasonable, subprogram error and so on.
The third step: even if your mesh is very good, if the deformation is too large, it will cause distortion of the mesh. Then change the mesh, anger red, key areas don't appear yellow. (of course, it's better to have all the grids divided by structure, and none of them appear red or yellow. The mesh quality is better. In this case, the warning message is always "distorted element" after a certain step has been calculated". This situation suggested by ALE, the detailed search forum "mesh" and "ALE" technology.
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