To prevent instabilities resulting from shooting nodes, LS-DYNA uses a so-called “shooting node logic” routine, which is activated via SNLOG=0 (default). “Shooting…
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The SMOOTH option for contact uses a surface fitting algorithm so that the contact can be calculated on the surface, rather than…
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SOFT = 1 option The contact formulation invoked by setting Soft=1 on optional card A of *CONTACT is not so radical a…
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Constraint-based / Penalty-based Contacts Tied contacts fall into 2 major categories: constraint-based and penalty-based. Those with TIEBREAK, OFFSET, or BEAM_OFFSETin…
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Like *CONTACT_AUTOMATIC_SINGLE_SURFACE, *CONTACT_AUTOMATIC_GENERAL is a single surface contact, that is, the contact is defined wholly by the slave side. Both contact types consider…
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IGNORE=1 At any point during the simulation, if a node is suddenly found to be below the surface (say, it…
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