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Recent Inquiries

Dirty Flow in Hypersonic Wind Tunnels

  The Defense Systems Information Analysis Center (DSIAC) received an inquiry from a Department of Defense scientist about hypersonic wind tunnel testing with dirty flow and its limitations regarding speed, type of debris, etc.  This…

Research on the Availability of Mechanisms to Protect Against In-Field Gun Tube Rupture

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…

Using Shape Memory Alloys as an Intermediate for Materials With Dissimilar Coefficients of Thermal Expansion

  The Defense Systems Information Analysis Center received a technical inquiry on the topic of joining dissimilar materials.  Historically, the integration of high-temperature materials used for leading edges, control surfaces, heat shields, etc. with metallic…