The concept of time interval response spectrum is introduced for characterizing the damage potential or the likelihood of a waveform to cause multiple mode response. By modifying slightly a typical response spectrum calculation routine the Weighted Spectrum Mean (WSM) is determined by evaluating the area under a normalized spectrum curve. A more detailed delineation of the response peaks statistics of simple oscillators results in the development of a Damage Potential Index (DPI). Both WSM and DPI are utilized to quantify damage potential for a variety of waveforms including free field motion and recorded testing motions. The results suggest that a useful tool has been established with only a small added effort to help design, predict, or analyze the damage potential of testing waveforms for seismic operability qualification of equipment.

This content is only available via PDF.
You do not currently have access to this content.