Regarding the previous post I had one more small question. The riveting analysis with hyperelastic material takes a long time to run in explicit. Going through the manuals about "mass scaling" to reduce the computation time. I just had two questions in which I am not clear from the manual. I have aluminum (density 0.00026 lb/in2 sec4) and rubber (density 0.0001 lb/in2sec4). Should one use just one mass scaling factor for both the materials or scale them separately? will this affect the solution? going through the manual there are many options fo rmass scaling. the fixed one seems the most straightforward to apply. How do you decide the factor to scale your mass?
thanks a lot