The Green River Bridge is a reinforced concrete structure with an expansion joint on its West end. The joint allows the concrete to naturally expand and contract without cracking as the deck undergoes thermal changes and other loading conditions. Passenger cars have very minor dynamic… Read more
The Challenge of the Ringing Moon: Structural Dynamics and Fatigue Design for Lunar Habitats
As NASA’s Artemis program and international space agencies transition from short-duration sorties to a sustained human presence on the Moon, mission planners and structural engineers must confront a mechanical hazard that received little attention during the Apollo era: lunar seismicity. The Moon is not a… Read more