Simulation of Repetitively-Pulsed Laser Irradiation of Graphite-Epoxy Composite

Abstract

The CW laser irradiation code of Griffis, Masumura and Chang was modified to simulate pulsed laser irradiations. Extensive changes were required to cure the numerical instabilities produced in the code by the high peak powers common to pulsed lasers. The new code was tested against the original Griffis, Masumura and Chang code and against a simple heat capacity model. A comparison was made with some of the experimental pulsed irradiations of Cozzens, et al, resulting in doubts about the accuracy of the model for the thermal properties of the graphite-epoxy under rapid heating.

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Document Details

Document Type
Technical Report
Publication Date
Dec 12, 1984
Accession Number
ADA148698

Entities

People

  • G. P. Mueller

Organizations

  • United States Naval Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Chemical Reactions
  • Composite Materials
  • Conductivity
  • Energy
  • Epoxy Composites
  • Equations
  • Graphite Epoxy Composites
  • Graphitic Materials
  • Heat Capacity
  • Lasers
  • Materials
  • Materials Science
  • Pulsed Lasers
  • Specific Heat
  • Surface Temperature
  • Thermal Conductivity
  • Thermal Properties

Fields of Study

  • Physics

Readers

  • Aerospace Research.
  • Computational Modeling and Simulation
  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy