Dear Sir,

I had created a new material in Caesar II material database. Lately I have changed CAESAR II older Version to latest Version. When I open that particular (Material Property changed model) file a Material warning 4 message appears, saying that “Material is not in the database. Keep the existing material properties.”

My query: Is it possible to view the old entered material property which is not in the material database (CAESAR II LATEST VER.).

User created or modified materials are stored in the file "UMAT1.BIN", located in the \system directory. Simply copy this file from the \system directory of the older version to the \system directory of the newer version. You'll then have access to the material(s) you added.

Dear Sir,

Thank you very much for quick reply but i have uninstalled the older version and i deleted everything. Sir, Is there any other way to read the material property at this position. CAESAR II asks to keep the existing material property 'yes keep' or u 'no update', when i click 'yes keep' i could use the edited material. So i guess the material property might stored somewhere if yes kindly help me.

The "input echo" will show the material data, but only for the temperatures you defined when the job was created. So for example, if your T1 is 300, then you have an expansion coefficient at 300 and an allowable stress at 300 - but you don't have the whole table. That table is (was) maintained in UMAT1.BIN, not in the input file.

The warning message simply means that the data in the input file doesn't match the data in the material database. If you "keep" the existing data, then the data defined in the input is used. If you select "update", the data from the "current" material database is obtained and replaces what is in the input file.

This post seems related to what I encountered. If I chose "keep", as you said that the data defined in the input is used, does it mean caesar II used that material even though it does not exist in the new UMAT1.BIN?

Yes, because the data is already defined in the "input".

Dear Mr. Richard Ay,

I am facing the problem with the material data - (393)B423 N08825. I used the following temperature for my load cases T1=35 deg C, T2 = 100 deg C and T3 = -21 deg C.

When i select the above mentioned material, the hot allowable stress for SH3 is changing to zero and the errors are displayed stating that "On element 130 to 140 the temperature for Case-1/case-2 and case-3 is outside the allowed range for this material"

Why this kind of error comes when i select the default material database. For additional details refer attached pictures

Please clarify.

Which piping code are you running to? Allowables for this material are in the database for ONLY B31.1 and B31.3. If you select another Code, physical properties are there but not allowables - hence the message.

If you're running to B31.3, there is no expansion coefficient below 21.111C, so your -21C temperature would generate an error. If you have this data, you can update the database.

Dear Mr.Richard,

I am using ASME B31.3 code, the error message is also shown for the temperature of 35 deg C and 100 deg C. Also why the expansion coefficient is not available in Caesar-II material database for that material at temp below 21 deg C...

Please clarify....

Send the job in to Techsupport so we can look at it.

http://65.57.255.42/ubbthreads/ubbthreads.php?ubb=showflat&Main=9160&Number=41561#Post41561

This might be useful for you.

@Raam,

It is the same problem that I am facing now. I entered the properties of a new material in the material database. Developed a CAESAR II model with this material in it. Then due to a problem I had to uninstall and reinstall CAESAR II. Now I need the properties of that material. Unable to do so.

Raam,
Did you get the answer?

Recreate the material or choose "keep" when you are asked. Always keep a copy of Umat1.bin in the calculation folder.

Regards,

No, i could not view the complete material properties which i had entered before the software version change.

but as like dan said, i kept the existing material properties throughout the analysis. Please make some copies of that file before you start doing the analysis. Suppose without knowingly, if you click the update icon, you can retrieve the old data from another copy.

Also Make a "Read Me" note inside the folder, "not to update the material database", this will help you in future.

Raam . . .

Umat1.bin (or Umat1.umd as of 5.30) is not uninstalled, it should still be there in the \system directory - unless you manually deleted that directory.

Thanks Raam, Danb, Richard,
I shall check this.