Comparison of Solution Methods for Composite Material Beam Response Due to Impact.

Abstract

Several solution methods are compared as to their usefulness in treating impact problems. The problem used as a basis for comparison involves a simply supported beam impacted at mid-span by a mass. The early-time and late-time structural responses of the system have been computed by (1) an analytical solution, (2) the NASTRAN finite-element, structural-analysis computer program, using both the direct integration method and the modal analysis method, and (3) the method of characteristics. The results have been compared. The chief conclusions are that the method of characteristics is the most accurate method for early-time, and that the NASTRAN modal method is best suited for late-time structural response.

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1975
Accession Number
ADA028317

Entities

People

  • Pei Chi Chou
  • William J. Flis

Organizations

  • Drexel University

Tags

DTIC Thesaurus Topics

  • Composite Materials
  • Computer Programs
  • Computers
  • Materials
  • Method Of Characteristics
  • Modal Analysis
  • Structural Analysis
  • Structural Response

Fields of Study

  • Engineering

Readers

  • Computational Fluid Dynamics (CFD)
  • Structural Dynamics.
  • Systems Analysis and Design