" The option ‘boundarytype: displacement has been used; check status file between steps for warnings on any jumps prescribed across the steps in displacement values of translational dof. For rotational
dof make sure that there are no such jumps. All jumps in displacements across steps are ignored "
i made two steps in dynamic explicit in abaqus
in the first gravity load is applied to the model very slowly , and in the second earthquake
load is applied
This is a general warning in an explicit analysis. If you apply a finite displacement instantaneously at the beginning of a step, it would result in infinite accelerations. Abaqus warns you to check that this is not the case.
Hi Mohammed
You can check below options:
1- You need to apply the displacement BC with an amplitude curve.
2-Copy and paste your *Amplitude and *Dynamic keywords so I can look at how you are defining your amplitude.
3-Try making changes to the BCs, possibly the model does not have enough constraints on them and there are rigid body motions. Overconstrain and work backwards.
Best Lucks
** Name: WATER Type: Gravity
*Dload, amplitude=Amp-2
Eulerian-1.Set-2, GRAV, 9.8, 0., -1., 0.
*Amplitude, name=Amp-2, definition=SMOOTH STEP
0., 0., 0.01, 0.01, 0.02, 0.02, 0.03, 0.03
0.04, 0.04, 0.05, 0.05, 0.06, 0.06, 0.07, 0.07
0.08, 0.08, 0.09, 0.09, 0.1, 0.1, 0.11, 0.11
0.12, 0.12, 0.13, 0.13, 0.14, 0.14, 0.15, 0.15
0.16, 0.16, 0.17, 0.17, 0.18, 0.18, 0.19, 0.19
0.2, 0.2, 0.21, 0.21, 0.22, 0.22, 0.23, 0.23
0.24, 0.24, 0.25, 0.25, 0.26, 0.26, 0.27, 0.27
0.28, 0.28, 0.29, 0.29, 0.3, 0.3, 0.31, 0.31
0.32, 0.32, 0.33, 0.33, 0.34, 0.34, 0.35, 0.35
0.36, 0.36, 0.37, 0.37, 0.38, 0.38, 0.39, 0.39
0.4, 0.4, 0.41, 0.41, 0.42, 0.42, 0.43, 0.43
0.44, 0.44, 0.45, 0.45, 0.46, 0.46, 0.47, 0.47
0.48, 0.48, 0.49, 0.49, 0.5, 0.5, 0.51, 0.51
0.52, 0.52, 0.53, 0.53, 0.54, 0.54, 0.55, 0.55
0.56, 0.56, 0.57, 0.57, 0.58, 0.58, 0.59, 0.59
0.6, 0.6, 0.61, 0.61, 0.62, 0.62, 0.63, 0.63
0.64, 0.64, 0.65, 0.65, 0.66, 0.66, 0.67, 0.67
0.68, 0.68, 0.69, 0.69, 0.7, 0.7, 0.71, 0.71
0.72, 0.72, 0.73, 0.73, 0.74, 0.74, 0.75, 0.75
0.76, 0.76, 0.77, 0.77, 0.78, 0.78, 0.79, 0.79
0.8, 0.8, 0.81, 0.81, 0.82, 0.82, 0.83, 0.83
0.84, 0.84, 0.85, 0.85, 0.86, 0.86, 0.87, 0.87
0.88, 0.88, 0.89, 0.89, 0.9, 0.9, 0.91, 0.91
0.92, 0.92, 0.93, 0.93, 0.94, 0.94, 0.95, 0.95
0.96, 0.96, 0.97, 0.97, 0.98, 0.98, 0.99, 0.99
1., 1.
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