Nonlinear Bulk Modulus Material

Abstract

Particles are provided which have a bulk modulus that varies nonlinearly with changes in pressure. The shell having a shell and a core is manufactured from a solid elastic material as a tube shape with a closure at both ends. The core is manufactured from a material having a bulk modulus less than the bulk modulus of the shell material and is pressurized. A system for fabricating the particles operationally includes a first pair of crimping wheels, a second pair of crimping wheels, and a pair of cutting wheels. During manufacture, feed stock is fed along a central line of symmetry; first passing between the first pair of crimping wheels, between the second pair of crimping wheels, and then between the cutting wheels. Particles are created by crimping, sealing and cutting sections of the feed stock to form individual or strings of particles.

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Document Details

Document Type
Technical Report
Publication Date
Jan 12, 2022
Accession Number
AD1158479

Entities

People

  • Thomas J. Gieseke

Organizations

  • Naval Undersea Warfare Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Arc Welding
  • Bending Stress
  • Bulk Modulus
  • Composite Materials
  • Elastic Materials
  • Extrusion
  • Folding
  • Geometric Forms
  • High Pressure
  • Inventions
  • Materials
  • Materials Processing
  • Materials Science
  • Mechanical Properties
  • Particles
  • Physical Properties
  • Plastic Deformation
  • Pressurization
  • Rotation
  • Stress Concentration
  • Stresses
  • Structural Properties
  • Symmetry
  • Tensile Strength
  • Tensile Stress
  • Thickness

Readers

  • Electrical Engineering
  • Materials Science and Engineering.
  • Reinforced Composite Materials