Energy Absorption for Short Duration Impacts.

Abstract

The objective of this study is to relate energy absorption characteristics to selected material properties and to establish a methodology that allows one to determine some of the material properties for maximum energy absorption. The finite element program DYNA-3D and its associated pre and post processors were used. The model used is a hollow square column. Five properties of the materials were included in the analysis: (1) Density (2) Elastic Modulus (3) Tangent Modulus (4) Yield Strength, and (5) Poisson Ratio. The Response Surface Method in conjunction with the canonical analysis were employed to locate the optimum or near optimum levels of the properties and then to determine the equation of the response surface in an area near the vector of optimum levels. For the given levels of three out of five material properties used in the study, one can calculate the remaining two material property levels to achieve the near-optimal energy absorption.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1996
Accession Number
ADA321092

Entities

People

  • B. Anderson
  • M. B. Rao
  • M. Hussain
  • M. Ziejewski

Organizations

  • Pennsylvania State University

Tags

DTIC Thesaurus Topics

  • Absorption
  • Computational Fluid Dynamics
  • Eigenvalues
  • Elastic Properties
  • Engineers
  • Equations
  • Materials
  • Mechanical Properties
  • Mechanics
  • Modulus Of Elasticity
  • Multivariate Analysis
  • Numerical Analysis
  • Poisson Ratio
  • Statistical Analysis
  • Three Dimensional
  • United States Government
  • Yield Strength

Fields of Study

  • Agricultural and Food sciences

Readers

  • Materials Science and Engineering.
  • Mathematics or Statistics
  • Operations Research