ATILA Transient Analysis

The transient (time-domain) solver can be set to use any of the following integration methods: central difference, Newmark, or Wilkson-theta. This type of analysis can be applied to elastic structures excited by external forces and/or displacements, piezoelectric and/or magnetostrictive structures excited by external forces, displacements and/or potentials radiating piezoelectric and/or magnetostrictive structures excited by external forces, displacements and/or potentials. For these analyses, the excitation function can be a step, pulse, sine, or any other function defined by the user (external file). Material losses can be taken into account. Results include displacements, stresses, pressures, electrical current, and acoustic radiation quantities.

An incident wave propagation via water domain and the reflective wave at the rigid target (~steel) is demonstrated below.