Energy Absorption and Impact Behavior of Stiffened and Unstiffened Aluminum Panels

Abstract

The impact behavior of stiffened and unstiffened square aluminum panels under fixed boundary conditions was investigated experimentally and theoretically, and the ultimate energy-absorbing characteristics were determined as a function of geometry. The effect of rigid, closed-cell foam (2-lb/cubic foot urethane) on an unstiffened panel was also investigated. A geometric scaling law was developed to extrapolate experimental results to sizes needed for the underbody collision protection system fo surface effect vehicles for Arctic operation. Protection levels were determined as a function of allowable vertical impact velocity and craft weight.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1974
Accession Number
ADA002709

Entities

People

  • A. J. Furio
  • W. E. Gilbert

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Absorption
  • Boundaries
  • Center Of Gravity
  • Computer Programs
  • Computers
  • Drop Tests
  • Energy
  • Equations
  • Geometry
  • Instrumentation
  • Kinetic Energy
  • Lepidoptera
  • Materials
  • Modulus Of Elasticity
  • Scaling Laws
  • Shape
  • Vehicles

Fields of Study

  • Physics

Readers

  • Explosive Engineering.
  • Polymer Science and Engineering.
  • Structural Dynamics.