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LS-DYNA Explicit Dynamics Simulations

What happens when a vessel collides with an offshore wind monopile? The structural response depends on impact energy, soil-structure interaction, vessel geometry, and localised plastic deformation, all happening in milliseconds.

At Lanza Engineers, our team uses Ansys LS-DYNA to simulate these high-energy dynamic events with full nonlinear, explicit analysis, capturing the real structural behaviour that simplified methods can't.

When Implicit FEA Isn't Enough

Standard implicit finite element analysis handles static and quasi-static loading. But for events lasting milliseconds to seconds (vessel impacts, explosions, dropped objects), explicit dynamics is required to accurately capture large deformations, material failure, contact between multiple bodies, and pressure wave propagation.

Ship collision analysis isn't just about checking a code formula. In our LS-DYNA simulations, we model the full vessel-monopile interaction, including bow crushing, material plasticity, and the force-indentation relationship that drives the structural demand on the foundation.