COLLABORATIVE RESEARCH AND DEVELOPMENT (CR&D) Delivery Order 0055: Molecular Dynamics Modeling Support

Abstract

This research in support of the Air Force Research Laboratory Materials and Manufacturing Directorate was conducted at Wright-Patterson AFB, Ohio from 10 August 2006 through 10 December 2007. We introduce a new mathematically rigorous high fidelity asymptotic theory for recovering the local field behavior inside complex composite architectures. The theory applies to zones containing strong spatial variance of local material properties. The method is used to recover the local field across ply interfaces for a pre-stressed multi-ply fiber reinforced composite. The results are shown to be in good agreement with direct numerical simulations for realistic fiber sizes and fiber-matrix elastic properties. We also demonstrate failure envelopes of composite systems using homogenization/dehomogenization micro-mechanical enhancement techniques.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2007
Accession Number
ADA526252

Entities

People

  • Timothy D. Brietzman

Organizations

  • Universal Technology Corporation (United States)

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Composite Materials
  • Computational Science
  • Elastic Properties
  • Failure Mode And Effect Analysis
  • Fiber Reinforced Composites
  • Government Procurement
  • Governments
  • Laminates
  • Manufacturing
  • Materials
  • Materials Laboratories
  • Military Research
  • Molecular Dynamics
  • Simulations
  • Three Dimensional

Readers

  • Aerospace Research.
  • Computational Fluid Dynamics (CFD)
  • Structural Health Monitoring of Composite Structures.