Relation between Step time and Mesh Size for Creep Analysis

[ignetious]

Hello All,

I am new to creep modeling using Abaqus. I have been following a tutorial on creep modeling of pipe and modified the inputs based on my problem. I came across this error message while running the job with particular time step."Time increment required is less than the minimum specified"
When i reduced the step time, again a error was shown "Too many attempts made for this increment"

Is there any relation between the step time to be followed and the mesh size while doing creep analysis??
I had used 2 Steps for the analysis, (time in hours)

Step1. Pressure loading
Time Period = 1
Incrementations:
Max no: of increments =100
Initial =1
Minimum = 1e-5
Maximum =1

Step 2: Creep
Time Period = 70
Incrementations:
Max no: of increments =100
Initial =1
Minimum = 1
Maximum =70

Mesh Size is .001
Element type is C3D20R.

Please let me know your valuable suggestions.

Thanks for the help