After making a model in LS-DYNA and save it i saw in some pdf tutorial they said it to copy the save file into hammer account. So what is this hammer account?
I am assuming you were looking at a document posted by Penn State. LS-Dyna doesn't have anything called "hammer account" in the environment. "hammer" is specific to Penn State university and is a server based system used to manage files and run jobs off a server.