Ep Eq Eh Ek Ed Er inn Errr Eq Eh X

When the dam-reservoir interaction effects are represented by added masses, the hydrodynamic energy EH is excluded from the energy equation, EH = 0. However, energy is added to the seismic input energy EQ and kinetic energy EK through the mass added to the structural system. In the analysis, the results of the fracture response are presented for the time before the five percent energy balance error is reached. The error in the energy balance represents an excessive amount of damage when numerical damping is introduced.

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