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Risk of Injury from Dynamic Loads


Boeing’s CST-100 Starliner spacecraft lands
Boeing’s CST-100 Starliner spacecraft lands at White Sands Missile Range’s Space Harbor, Wednesday, May 25, 2022, in New Mexico. Boeing’s Orbital Flight Test-2 (OFT-2) is Starliner’s second uncrewed flight test to the International Space Station as part of NASA’s Commercial Crew Program. OFT-2 serves as an end-to-end test of the system’s capabilities.
NASA/Bill Ingalls

Standards and vehicle design requirements are based on automotive and military environments and operational protocols; they are also partially tailored to the spaceflight environment. However, these do not adequately mitigate the risk of injury due to the unique spaceflight environment.  Current analytical tools are used outside of their validation conditions and have been shown to underpredict Soyuz landing injury. Injury due to standing during dynamic phases of flight is poorly documented in the literature, and little data are available.  Injury assessment reference values have not been validated due to limited load and injury data from Soyuz landings.

Russian Sokol suit pressure checked
Expedition 68 astronaut Frank Rubio of NASA has his Russian Sokol suit pressure checked, while Expedition 68 backup crewmember Loral O’Hara of NASA looks on, Wednesday, Sept. 21, 2022, in Baikonur, Kazakhstan. Rubio, Dmitri Petelin and Sergey Prokopyev of Roscosmos launched onboard the Soyuz rocket from the Baikonur Cosmodrome for a mission on the International Space Station. Photo Credit:
NASA/Bill Ingalls

Directed Acyclic Graph Files

+ DAG File Information (HSRB Home Page)

+ Dynamic Loads Risk DAG and Narrative (PDF)

+ Dynamic Loads Risk DAG Code (TXT)

Human Research Roadmap

+ Risk of Injury from Dynamic Loads

+ 2021 September Evidence Report



Last Updated
Jun 20, 2023
Robert E. Lewis