MODULUS OF RESILIENCE: AN ISOMORPHIC APPLICATION FOR CRITICAL INFRASTRUCTURES.

The term resilience often appears in contemporary literature to qualitatively describe systemic responses following disaster. A search in the literature did reveal the quantitative construct of resilience with respect to materials science. Additionally, review found the application of stress, based on material science constructs, to quantitatively represent resilience in generic system terms. However, literature review reflected an absence of quantitative measures of resilience specifically related to power systems. The maximum energy that can be absorbed per unit volume without creating permanent distortion is the Modulus of Resilience (Ur). The Modulus of Resilience is calculated by integrating the stress-strain curve from zero to the elastic limit. This paper proposes an isomorphic application of the Modulus of Resilience to quantitatively express resiliency of electric infrastructure. [ABSTRACT FROM AUTHOR]