ABAQUS 最基础知识拾遗

• Abaqus/CAE is backward compatible and can open model databases created by previous releases of Abaqus/CAE
  ABQ的CAE是向前兼容的，但是 可能会出现意想不到的情况，例如真的打不开，，，

• Abaqus/CAE never saves the model database unless you perform an explicit save operation; there is no timer-based automatic saving, for example.
  ABQ的CAE没有自动保存机制
  尽管如此，我们还是不必担心的，因为对应的 .rpy 文件是自动保存的，而且实时更新，只要 CAE 模型有任何变化，甚至是视角的任何变化都会记录下来

• However, while you work on your model, Abaqus/CAE maintains a record of all the operations that changed the model database. Although you may not have saved the model database, you can always replay the operations that replicate its current state. For more information on recreating the model database, see “Recreating an unsaved model database,” Section 9.5.3.

User action	Abaqus/CAE action	Files
Start Abaqus/CAE session	None	None
Make model changes	Record commands in recover file	abaqus1.rec
Save the model database	Create model database file Copy recover commands to journal fil Delete recover file engine.cae	engine.jnl
Make more changes to the model	Record commands in recover file	engine.rec engine.cae (out of date) engine.jnl (out of date)
Save model database	Update model database file Append recover commands to journal file Delete recover file	engine.cae (updated) engine.jnl (updated)

• If your Abaqus/CAE session aborts unexpectedly—for example, because of a power loss to your computer—the recovery file will still be available to Abaqus/CAE for your next session. Abaqus/CAE first checks for the presence of a recovery file of the form abaqusn.rec; if such a file exists, it may be from a previous session that aborted unexpectedly, or it may be from another Abaqus/CAE session that you started in the same directory. Because Abaqus/CAE cannot tell the difference between these two cases and cannot determine automatically whether you want to implement the changes, Abaqus/CAE prompts you with three options: recover the changes and delete the recovery file, do not recover changes and delete the recovery file, or disregard the recovery file because its changes belong to another Abaqus/CAE session. When you recover changes, you can skip the last command in the recovery file if you think the last command you issued caused the termination of the session.

• If a recovery file belongs to a model database (model_database_name.rec), Abaqus/CAE will not detect the recovery file until you attempt to open that model database. Upon your attempt to open the model database, Abaqus/CAE prompts you to recover or disregard the changes. If you recover the changes, Abaqus/CAE appends the changes in the database recovery file to the journal file and deletes the database recovery file; if you choose to disregard the changes, Abaqus/CAE deletes the recovery file and does not implement any of the model changes described in the file.

• Model descriptions and material descriptions that appear as comment lines in input files are imported into Abaqus/CAE. The comment lines that immediately precede the header of the input file store the model description, which is available in the Edit Model Attributes dialog box upon import. The comment lines that immediately precede the material and material behavior definitions store the material descriptions, which are available in the Edit Material dialog box upon import.
  The job description from the Edit Job dialog box appears as the data line for the header of the input file. If desired, you can modify this data line to include more details about the job; however, this data line is not imported into Abaqus/CAE.
  这里是说，我们在 CAE 里面写的 description 都会输出到 input。

• 对于 abaqus 生成的文件，可以参考手册 Abaqus Analysis User's Guide 3.6.1 File extensions used by Abaqus
  

  

  这个手册还是很值得看的，例如一些不熟悉的建模技术