An Analytical Model for Determining Energy Dissipation in Dynamically Loaded Structures

Abstract

An analytical procedure is developed which predicts nonlinear cyclic structural response under large reversals of plastic strains. The structure is discretized by means of the finite element approximation, and the material behavior is simulated by a refined analytical model which describes the realistic hysteretic stress-strain curves of A36 steel under arbitrary cycles of load. In order to test the validity of this material model some comparisons are made with experimental values of the inelastic response of a simply supported beam under cyclic bending. The model is subsequently used in the dynamic analysis of a portal frame subjected to a selection portion of the El Centro NS earthquake acceleration record.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1975
Accession Number
ADA017040

Entities

People

  • John F. Mcnamara
  • Sushil K. Sharma

Organizations

  • Construction Engineering Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Accuracy
  • Civil Engineering
  • Computer Programs
  • Computers
  • Dissipation
  • Dynamic Response
  • Engineering
  • Equations
  • Illinois
  • Materials
  • Mechanics
  • Residual Stress
  • Simulations
  • Stress Analysis
  • Stress Strain Relations
  • Stresses
  • Two Dimensional

Fields of Study

  • Engineering
  • Physics

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Structural Dynamics.