Stress-Stress Modelling for Heterogeneous Granular Materials Based on Micromechanics.

Abstract

The objective of this research is to develop a micromechanics theory for granular material considering the effects of micro-structure. This type of micro-structural based constitutive theory is useful in many fields of studies such as in the mechanics of soil, powder, composite and ceramic. The specific efforts are focused in the following four different areas: (1) descriptions of micro-structure, (2) micro-macro relationship, (3) classes of micromechanics constitutive theory, and (4) contact law of the inter-particle binder. These four areas are the fundamental elements to the construction of a micromechanics theory for granular media. Particular attention will be given to the effect of heterogeneity in micro-structure on the micro-macro mechanical behavior. The nature of this investigation is focused on theoretical development. The developed theory is evaluated by experimental and computer simulation results. (MM)

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Document Details

Document Type
Technical Report
Publication Date
May 15, 1995
Accession Number
ADA297801

Entities

People

  • Ching S. Chang

Organizations

  • University of Massachusetts Amherst

Tags

Communities of Interest

  • Air Platforms
  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Computational Science
  • Computer Simulations
  • Constitutive Equations
  • Construction
  • Elastic Properties
  • Granular Materials
  • Integral Equations
  • Materials
  • Mechanical Properties
  • Mechanics
  • Micromechanics
  • Microstructure
  • Modulus Of Elasticity
  • Simulations
  • Stress Strain Relations
  • Stresses
  • Two Dimensional

Readers

  • Computational Fluid Dynamics (CFD)
  • Powder metallurgy of Titanium alloys.