Analysis of Functionally Graded Shells Subjected to Blast Loads

Abstract

The response of doubly curved functionally graded panels exposed to blast loads and a uniform through the wall thickness temperature field is investigated. Two scenarios, symmetric and antisymmetric about the midsurface, continuous distributions of the two constituent phases, ceramic and metal, are considered, in the sense that in one of them the composition varies gradually from ceramic-to-metal-to-ceramic, while in the other, from ceramic-to-metal. The implications of pressure pulses, volume fraction exponent, panel curvature, and the temperature change on the time-history of the transverse deflection are presented, and pertinent conclusions are drawn.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jul 21, 2008
Accession Number
ADA484329

Entities

People

  • Romesh C. Batra

Organizations

  • Virginia Tech

Tags

Communities of Interest

  • Air Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Amplitude
  • Blast Loads
  • Boundary Value Problems
  • Climate Change
  • Constitutive Equations
  • Curvature
  • Deflection
  • Differential Equations
  • Dynamic Loads
  • Equations
  • Explosives
  • Frequency
  • High Temperature
  • Materials
  • Sonic Boom
  • Thickness
  • Vibration

Readers

  • Materials Science and Engineering.
  • Structural Dynamics.
  • Thin Film Deposition Science.