Product: Abaqus/Standard
Benefits: You can use a perfectly matched layer to truncate an infinite domain. The perfectly matched layer absorbs all incoming acoustic waves.
Description: Perfectly matched layers are now provided in Abaqus/Standard to model infinite domains in a direct-solution steady-state dynamic analysis. The perfectly matched layer is modeled using acoustic elements that are available in Abaqus/Standard whose behavior is modified appropriately to act as an absorbing layer. For any given problem, it is recommended to have 4–7 layers of elements in the perfectly matched layer region. You specify the coefficients that are used to define the absorbing properties of the perfectly matched layer and the outer limits of the acoustic domain. These limits are used to compute the absorbing properties for the perfectly matched layer.
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