This is a static/quasi-static loading problem employing loading at 1.5 mm/min for a total deformation of 50% of structure vertical length. The material is Ti-6Al-4V.
I have seen fracture simulations in LS-DYNA for high loading rates, but not sure whether it's use if viable at my loading rate.
I am comparing the energy absorbed (area under the stress-strain curve) between the experiment and simulated data. So I am basically trying to replicate the attached experimental curve(s).
Video link:
https://drive.google.com/file/d/1roduWxWo2t9oqngS9J-lpE8fY7FN9lU9/view?usp=sharing
Hi,
Modelling fracture/material erosion using Abaqus, while also capturing the inelastic behavior is achievable. For (reinforced) concrete it may be more difficult than for more ductile materials, such as steel, aluminium etc. but is still achievable (Article Improving the accuracy of progressive collapse risk assessme...
) .For ductile metals there are several predefined material behaviors that allow defining the stress-strain characteristics to account for the material degradation and could be used in order to model it even in quasi-static analyses (see picture DamageDuctileMetals).
Another option would be to use erosion algorithms (definitively remove from the model finite elements for which the stresses/strains meet some criterion) but those ones could be very difficult to calibrate.
If the analysed structure has certain existing defects, XFEM module from Abaqus could also be useful.
Hopefully, the info would be of some use to you.
Good luck.
Best regards.
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