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Posted on October 14, 2020 | Completed on July 7, 2020 | By: Defense Systems Information Analysis Center (DSIAC)
Are there existing solutions to protect a gun crew in case of barrel failure initiating from an inclusion, without limiting the weapon's usage?
DSIAC received a technical inquiry regarding protection from in-field gun tube rupture. In particular, there is a possibility that a 120-mm mortar tube could rupture due to inclusions present in the microstructure of the steel used to construct the gun tube. This rupture would release a high-temperature gas flow at 19,000 psi if the failure is a ductile fracture. If the failure is a brittle fracture, pieces of steel would also be released. The inquiring organization is looking for possible solutions to protect the crew in case of this event, without limiting the weapon’s usage. Materials engineering and ballistician subject matter experts at the Texas Research Institute Austin, Inc., performed literature searches using DTIC, open sources, and university libraries’ identity work related to this and provided information on potential complementary technologies.
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