Problem in setting the Halfrol in dynamic implicit step in abaqus
Problem in setting the Halfrol in dynamic implicit step in abaqus
(OP)
Hi,
I have a problem in setting the half step residual tolerance for dynamic implicit step in Abaqus standard. In the manual it says that it can be either set to 0.1 P or P or 10 P depensing upon some conditions , where P is the load applied/reaction forces sustained by the model. But for what ever value i give it the analysis just stops running i.e., in the sense it doesnt abort or give some errors but just stops without any further increments.
Can some one shed some light on my issue.
Thanks in advance,
Regards,
Mveeram
I have a problem in setting the half step residual tolerance for dynamic implicit step in Abaqus standard. In the manual it says that it can be either set to 0.1 P or P or 10 P depensing upon some conditions , where P is the load applied/reaction forces sustained by the model. But for what ever value i give it the analysis just stops running i.e., in the sense it doesnt abort or give some errors but just stops without any further increments.
Can some one shed some light on my issue.
Thanks in advance,
Regards,
Mveeram





RE: Problem in setting the Halfrol in dynamic implicit step in abaqus
The manual is poorly covered in this respect (HAFTOL) however. After you are sure that the model is behaving reasonably under static/modal conditions, as a first trial I would check your static analysis (a gravity run should be sufficient initially) using the boundary conditions of your dynamic analysis, and note the total reaction force in the model. Base the HAFTOL on these forces and then reduce the HAFTOL until the analysis results converge (within a practical time frame of course).
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RE: Problem in setting the Halfrol in dynamic implicit step in abaqus