Validation metrics for response histories: perspectives and case studies

Issue Title: Special Issue on Verification and Validation The quantified comparison of transient response results are useful to analysts as they seek to improve and evaluate numerical models. Traditionally, comparisons of time histories on a graph have been used to make subjective engineering judgments as to how well the histories agree or disagree. Recently, there has been an interest in quantifying such comparisons with the intent of minimizing the subjectivity, while still maintaining a correlation with expert opinion. This increased interest has arisen from the evolving formalism of validation assessment where experimental and computational results are compared to assess computational model accuracy. The computable measures that quantify these comparisons are usually referred to as validation metrics. In the present work, two recently developed metrics are presented, and their wave form comparative quantification is demonstrated through application to analytical wave forms, measured and computed free-field velocity histories, and comparison with Subject Matter Expert opinion.[PUBLICATION ABSTRACT]