acoustic waves

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Research Efforts in Infrasound

  The Defense Systems Information Analysis Center (DSIAC) was asked to identify key contributors to DoD research efforts in infrasound. Infrasound is classified as sound waves with frequencies lower than 20 hertz (Hz) cycles per…


NSWCDD Report: Mitigating Blast and Shock Using Advanced Materials

Naval Surface Warfare Center, Dahlgren Division, is collaborating with Naval Surface Warfare Center, Carderock Division, and Naval Undersea Warfare Center, Division Newport, to produce layered polyurea/woven crimp graded composite panels optimized for blast and fragment impact protection. The intent is to develop blast and impact resistant elastomeric coatings and woven fabric-reinforced polymer composites for use