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Experimental Investigation of Free Field and Shock-Initiated Implosion of Composite Structures

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Technical Report,01 Nov 2013,01 Dec 2016

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University of Rhode Island Kingston United States

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A comprehensive series of experimental studies is performed to study the implosion behavior of a variety of different composite structures under varying loading conditions . Experiments are performed in a large pressure vessel designed to maintain constant hydrostatic pressure during collapse . 3D Digital Image Correlation DIC is calibrated for submerged structures and used in conjunction with high-speed cameras to provide full - field displacement data in conjunction with pressure data to investigate collapse mechanics. Studies performed investigate i the natural implosion of carbon-fiber epoxy cylinders, ii natural implosion of GFRP cylinders, iii the differences in behavior between the aforementioned materials and aluminum during implosion, iv dynamic mode evolution in the collapse of CFRP cylinders, vmitigation of pressure pulses from CFRP cylinder implosion using polyurea coatings, vi the collapse of CFRP cylinders under subcritical pressure and shock loading, and vii the collapse of double hull composite structures.

Subject Categories:

  • Laminates and Composite Materials
  • Explosions
  • Structural Engineering and Building Technology

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