September 28, 2022 at 10:02 amamir.mb1377Subscriber
Hello,in lsdyna softwar. I have two parts made of different materials. But they are connected, I made each of the materials separately. But I want to connect these two together. how can i do?
October 5, 2022 at 12:26 amJim DayAnsys EmployeeYou can either merge the two parts or tie the two parts. Merging means sharing of nodes at the interface. Tying means using *CONTACT_TIED_SURFACE_TO_SURFACE (or similar) to join the two parts at their interface.
October 7, 2022 at 8:14 amamir.mb1377Subscriber
Hello, Jim day,
can you send me a video so I can learn how to apply it?
October 7, 2022 at 2:46 pmJim DayAnsys EmployeeGoogle "example of tied contact in LS-DYNA".
October 12, 2022 at 6:58 amamir.mb1377Subscriber
One of my parts is shell and the other is solid. Can I still use CONTACT_TIED_SURFACE_TO_SURFACE?
October 12, 2022 at 4:32 pmJim DayAnsys EmployeeDepending on your geometry, that may still work fine. It won't consider the rotational DOF of the shell nodes however. Alternatively, you could try *CONSTRAINED_TIED_SHELL_EDGE_TO_SURFACE_CONSTRAINED_OFFSET. Try these contact types and report back if the contact doesn't appear to be working.
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