Bolt pre-load

[christophersrikanth]

I have an ABAQUS input deck which I'm running through the batch command (I do not have ABAQUS CAE).

I have got 4 steps defined.

In the first step I have the bolt pre-load defined (CLOAD OP=NEW)

In the second step I define the external load of 25000 (CLOAD OP=MOD). I put OP=MOD because I want the existing loads to be retained in the second step.

Then, in third step, I want the external loads to be incremented by 25000, Again I put CLOAD OP=MOD

Is this ok?

That is,
1) in the irst step, I have:

*CLOAD
1000002, 1, 3.000000E+07
**%
**%Comment Bolt Pre-Load_abaqus_3 (Abaqus3DBoltPreLoadForce)
**%
*CLOAD
1000011, 1, 3.000000E+07
**%
**%Comment Bolt Pre-Load_abaqus_2 (Abaqus3DBoltPreLoadForce)
**%
*CLOAD
1000013, 1, 3.000000E+07

2) In the second step, where I defined an external load of 25,000 (I want to retain the bolt preloads)

**%Comment 25000 N (NormalForce)
**%
*CLOAD, OP=MOD
....
.....

3) Similarly, in the 3rd step

**%Comment 25000 N (NormalForce)
**%
*CLOAD, OP=MOD

Is the process 1,2,3 correct?

That is:

A) In first step only bolt preload
B)Second step 25000 ext load
C) Third step 25000 incremented (total ext load in second step = 50000)

IS the process correct (from ABAQUS syntax point of view)

I am uploading the ABAQUS input deck.

Please can anyone advise?

Chris

 

[christophersrikanth]

Please can anyone advise if possible?