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Recent Inquiries

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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…

gun tube

The Availability of Mechanisms to Protect Crews Against Gun Tube Rupture

  The Defense Systems Information Analysis Center received a technical inquiry on protecting crews from gun tube rupture.  In particular, there is a possibility that a 120-mm mortar tube could rupture due to inclusions present…

Front - LAR-18335

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…