This technical memorandum documents the results of the research to develop a concept for assessing the structural integrity of impacted composite structures using the strength degradation factor in conjunction with available finite element tools. For this purpose, a literature search was conducted, a plan for conducting impact testing on two laminates was developed, and a finite element model of the impact process was created. Specimens for the impact testing were fabricated to support the impact testing plan.Ortega, R. and Price, J. M. and Fox, D.Marshall Space Flight CenterDEGRADATION; COMPOSITE STRUCTURES; IMPACT TESTS; FINITE ELEMENT METHOD; MATHEMATICAL MODELS; STRUCTURAL FAILURE; RESIDUAL STRENGTH...