By J. Cinnamon
While fabrics engage at hypervelocity, at the order of Mach 8.5 and above, unforeseen effects can ensue. This ebook addresses the consequences of hypervelocity influence, summarizing previous and current examine efforts in addition to starting up the theoretical origin for knowing fabric interactions at such speed. It makes a speciality of learn performed on the Holloman Air strength Base excessive pace attempt tune (HHSTT), that is operating towards a try out automobile velocity above Mach 10. Researchers have stumbled on that because the sled’s pace has elevated to Mach 8.5, a cloth interplay has built that reasons “gouging” within the rails and the sled’s “shoes”, which can result in catastrophic failure.
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Extra info for Hypervelocity Gouging Impacts
Of Technology, Wright-Patterson AFB, Dayton, OH, Oct. 2002.  Voyiadjis, G. , and Abed, F. , “Microstructural Based Models for bcc and fcc Metals with Temperature and Strain Rate Dependency,” Mechanics of Materials, Vol. 37, Nos. 2–3, 2005, pp. 355–378.  Voyiadjis, G. , and Abu-Al-Rub, R. , “Gradient Plasticity Theory with a Variable Length Scale Parameter,” International Journal of Solids and Structures, Vol. 42, No. 14, 2005, pp. 3998–4029.  Voyiadjis, G. , Abu-Al-Rub, R. , and Palazotto, A.
Szmerekovsky also noted that CTH’s heat conduction algorithm had the capability to model heat transport during the impact event away from the zones of heat generation into the bulk material. However, this effect was small and did not contribute signiﬁcantly to the overall solution . 0 km/s impact generated gouging earlier than a scaled time history would predict. This showed that the characteristics leading 34 JOHN D. CINNAMON to gouging were enhanced by the increased velocity. His model also created the typical high-pressure core necessary for gouge initiation and development.
And Briggs, R. , Technical Rept. ARL 68-0028, Wright-Patterson AFB, Dayton, OH, Feb. 1968.  Korkegi, R. , and Briggs, R. , “The Hypersonic Slipper Bearing—A Test Track Problem,” Journal of Spacecraft, Vol. 6, No. 2, 1969, pp. 210–212.  Lofthouse, A. , Hughson, M. , and Palazotto, A. , “Hypersonic Test Sled External Flow Field Investigation Using Computational Fluid Dynamics,” AIAA Paper 2002-0306, Jan. 2002.  Voyiadjis, G. , and Abed, F. , “Microstructural Based Models for bcc and fcc Metals with Temperature and Strain Rate Dependency,” Mechanics of Materials, Vol.