Mechanical Behavior of Granular/Particulate Media Reinforced with Fibers

Abstract

Fiber-reinforced ganular composites (for instance, fiber-reinforced sand) are considered as construction materials for such applications as subgrades of airfields and roads, aircraft parking facilities, etc. An investigation into the mechanical behavior of granular/particulate media with fibrous inclusions was carried out. This investigation was built on the results of a previous study. Fiber-reinforced granular material was considered as a composite, and a mathematical homogenization scheme was used to arrive at its macroscopic properties. The issues related to micromechanics behavior, leading to anisotropy and hardening/softening at the macroscopic level of description, were at the core of this investigation. This research produced a material model which accurately describes the behavior of fiber-reinforced soils at failure. The research was terminated before its conclusion, because of the elimination of the Particulate Mechanics program at the AFOSR.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1999
Accession Number
ADA360446

Entities

People

  • Radoslw Michalowski

Organizations

  • Johns Hopkins University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Civil Engineering
  • Composite Materials
  • Construction Materials
  • Elimination
  • Engineering
  • Granular Materials
  • Hardening
  • Laboratory Tests
  • Materials
  • Mechanics
  • Micromechanics
  • Parking Facilities
  • Particulates
  • Physics
  • Scientific Research
  • Softening

Readers

  • Computational Fluid Dynamics (CFD)
  • Pavement Materials Engineering.
  • Structural Health Monitoring of Composite Structures.