I’ve been doing nonlinear stress and modal analysis with netgen mecway and ccx. it is easy fast and works well in my opinion.
the comments on your other forum link i don’t agree with. im not aware of any software product that guarantees the results. it’s a legal issue as well. it’s always up to the user to guarantee their own results. the liability is on the user not the software vendors.
the other point about two devs vs a community is ridiculous. ccx seems to be mostly one dev rather than two. regardless, what matters is the software not how many monkees it takes to screw in a lightbulb.
for your specific blast application, you may want to look at explicit integration fea rather than implicit. i don’t know if ccx can do those kinds of problems.
also, on the linear analysis being common. it used to be decades ago. however, ccx makes nonlinear so easy and fast that is all i run now. if you need accurate displacement then nonlinear is the way to go. even for cases well below yield.