Edward Glaessgen

Edward H. Glaessgen works at NASA Langley Research Center in Hampton, Virginia.¹ In 2015 a Johns Hopkins seminar notice gave his title as Senior Technologist for Computational Materials at Langley.² He was a member of the team, chaired by Mike Shafto, that wrote NASA's November 2010 draft roadmap for modelling, simulation, information technology and processing.⁴

With D. S. Stargel of the Air Force Office of Scientific Research he wrote The Digital Twin Paradigm for Future NASA and U.S. Air Force Vehicles.¹ Its abstract argues that current ways of certifying and maintaining vehicles, based on statistical material properties and physical testing, will not meet the demands of future ones.¹ In their place it proposes a digital twin that joins ultra-high-fidelity simulation with the vehicle's own health monitoring and history "to mirror the life of its flying twin".¹ A later Langley presentation that lists him as an author names the Airframe Digital Twin, modelling each aircraft or spacecraft as built and as it has been loaded, as one of two challenge problems guiding Langley's research on durability and damage tolerance.³

The wiki's history of the digital twin describes the 2012 paper and its "as-built" definition.