Hi,
I have tried to perform an plate subjected to impact load in ABAQUS, after impacting the plate have a permanent deflection, while the plate was still oscillating. So how can I reduce the oscillation of test plate in ABAQUS?
What is the time period of structure for the corresponding mode and what is the duration of loading?? Is it a materially linear analysis??
I used step analysis as dynamic/explicit with 0.05 time period, plate subjected to a mass impact load.
Hi Dac Dung,
Applying a damping to your model would be a necessary part of modeling if you don't consider it yet. I would recommend you start from defining a proportional damping of your model.
Hi Xiangxiong,
Thank you for your nice answer,
I have considered the Rayleigh damping by applying lowest natural frequency value for mass proportional (alpha) and keep the stiffness proportional damping (beta) equal to zero, but the reduction of displacement result is significant, it is around 10% which may not be accepted. Could you suggest me how we can assume the reasonable damping ratio for analysis? Thank you in advance.
Do you consider to increase the plate stiffness? It could reduce the response.
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