Elastic Stress Analysis of Advanced Functionally Graded Plates Impacted by Blast Loading

Abstract

The foundation of the theory of functionally graded plates with all four edges simply supported, under a Friedlander explosive spherical air-blast, is developed, within the classical plate theory (CPT). The constituent materials, ceramic and metal, vary across the wall thickness according to a prescribed power law. The theory incorporates the geometrical nonlinearities, the dynamic effects, compressive/tensile edge loadings, damping effects, and the structural symmetries (symmetric and asymmetric). The static and dynamic solutions are developed leveraging the use of a stress potential coupled with the Extended-Galerkin method and the Runge-Kutta method. Validations with simpler cases existing within the literature are made. The analysis focuses on how to alleviate the unwanted effects of large elastic stresses and deformations through material selection and proper gradation of the constitutive phases.

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Document Details

Document Type
Technical Report
Publication Date
Jan 18, 2010
Accession Number
ADA556027

Entities

People

  • Terry Hause

Organizations

  • United States Army Tank Automotive Research, Development and Engineering Center

Tags

Communities of Interest

  • Air Platforms
  • Counter IED
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aluminum Oxides
  • Aspect Ratio
  • Constitutive Equations
  • Differential Equations
  • Dynamic Response
  • Equations
  • Equations Of Motion
  • Explosives
  • Frequency
  • Galerkin Method
  • Materials
  • Military Vehicles
  • Runge Kutta Method
  • Stress Analysis
  • Stresses
  • Two Dimensional
  • Validation

Readers

  • Reinforced Composite Materials
  • Structural Dynamics.