Hi Dr. Nguyen,

The Abaqus is better at implicit time integration while the Ls-Dyna better at explicit time integration (inertia effect taken into account). So the time step for the Abaqus is usually much larger than the one used by the Ls-Dyna, but for strong non-linear problems, such as contact/impact, the former would probably encounter convergence problem while the latter is doing better. One advantage of the Ls-Dyna is that it is embedded with heaps of material models. As far as your publications I have read, I think the Abaqus is probably more suitable for your research. 

Regards.

Hu

Hi Dr. Nguyen,

The Abaqus is better at implicit time integration while the Ls-Dyna better at explicit time integration (inertia effect taken into account). So the time step for the Abaqus is usually much larger than the one used by the Ls-Dyna, but for strong non-linear problems, such as contact/impact, the former would probably encounter convergence problem while the latter is doing better. One advantage of the Ls-Dyna is that it is embedded with heaps of material models. As far as your publications I have read, I think the Abaqus is probably more suitable for your research. 

Regards.

Hu

Thanks a lot for your answers, Ismail and Hu.

Best regards,

Phu

And one more question can Abaqus perform parametric study as ANSYS?

Best regards,

Phu

There should be no problem for the Abaqus to do parametric studies as long as modelling is guaranteed to be convergent (here I mean sufficiently small time steps to keep modelling convergence). 

Dear a Phu,

You can perform a parametric study in ABAQUS easily by using ABAQUS scripting (cf. ABAQUS Scripting User's guide, subsection 4.1).

Best regards,

DTDung

Thanks a lot for your clarification.

Best regards,

Phu