Hi,
I'm conducting an axisymmetric deep drawing operation in Abaqus/explicit. I'm using a discrete rigid punch that's flat-ended and I've specified surface-to-surface contact between the punch and blank. The blank is 0.14mm thick meshed with CAX4R elements and is the slave surface, while the...
I should have mentioned from the outset that I'm conducting the analysis in explicit, because of the large non-linearities associated with the plastic strain and contact.
Also, the sheet is approx. 0.14mm thick and I'm deforming it 10mm deep which has proven experimentally.
I would be happy to...
Apologies, if I coarsen the mesh also to get rid of these oscillations then the ratio of ALLKE to ALLIE increases near the start of the analysis and can become noisy for a longer period of time into the step. I believe I should be minimising this noise but unsure of what is an acceptable limit...
Hi, I am modelling a deep drawing process of a thin sheet and am having some issues with the stability of the model. I started my analysis using a step time approx. equal to the lowest mode of the blank (frequency = 290.50s-1 giving a period = 0.0034s and I used 0.003s). This gives reasonable...
