abaqus某分析步初始增量步被自动缩减
请教各位,最近abaqus standard使用python脚本设置某分析步初始增量步0.025,inp文件也是记录0.025,但是实际脚本命令mdb.jobs[].submit计算发现初始增量步取了0.008,改用bat文件也是被自动“修正”为0.008。更改初始增量步或把inp文件放到别的电脑上也会出现这样的缩减。不明白为什么会出现这种情况
最近一批相同构造不同尺寸的模型在计算,只有一个模型出现这种情况
以下是inp文件中某一分析步(第三个分析步)设定的增量步参数
...... ** ---------------------------------------------------------------- ** ** step: ml ** *step, name=ml, nlgeom=yes, inc=10000 *static 0.025, 1., 1e-08, 0.025 ** ......
以下是msg文件中该分析步的相关信息
...... print of increment number, time, etc., every 1 increments the maximum number of increments in this step is 10000 large displacement theory will be used unsymmetric matrix storage and solution will be used linear extrapolation will be used characteristic element length 11.6 details regarding actual solution wavefront requested detailed output of diagnostics to database requested print of increment number, time, etc., to the message file every 1 increments element operations will be carried out in parallel using 6 processors the initial time increment was reduced to 8.000e-03 to meet the next output time point collecting step constraint information for overconstraint checks ......
与其它没有发生这种情况的模型相比多出了一条“the initial time increment was reduced to 8.000e-03 to meet the next output time point”的信息,但不明白为什么会出现这样的情况。
感谢各位大神的解答!
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