The Response of Reinforced Concrete Structures under Impulsive Loading,

Abstract

A finite element method is presented to analyze the effects of airblast-induced ground shock on shallow-buried, flat-roofed, reinforced concrete structures. A finite element based on Timoshenko beam theory is adopted. Material properties are defined in terms of nonlinear stress-strain relations in each of several layers through the thickness of the element. Elastic, ideally plastic constitutive properties for plain concrete are cast in terms of shear-stress/normal-stress variables. Elastic, strain-hardening constitutive properties are assumed for steel. Dynamic explicit and implicit and static solution algorithms are available. This analysis method is applied to simulation of static beam-column tests reported by ACI Committee 318-77. It is then applied to simulation of structural response of experimentally tested shallow-buried box structures subjected to airblast loads in which shear, flexure and combined shear-flexure damage was observed. (Author)

Document Details

Document Type
Technical Report
Publication Date
May 01, 1983
Accession Number
ADP001762

Entities

People

  • Jeremy Isenberg
  • William A. Millavec

Tags

DTIC Thesaurus Topics

  • Air Force
  • Concrete
  • Constitutive Properties
  • Finite Element Analysis
  • Ground Shock
  • Materials
  • Munitions
  • Reinforced Concrete
  • Shear Stresses
  • Strain Hardening
  • Stress Strain Relations
  • Stresses
  • Structural Response
  • Timoshenko Beam
  • United States Air Force Academy

Fields of Study

  • Engineering

Readers

  • Explosive Engineering.
  • Finite Element Method (FEM) for solving Partial Differential Equations (PDEs)
  • Mechanical Engineering/Mechanics of Materials.