Sorption and Diffusion of Moisture in Multilayer Composite AEM/S Sandwich Materials.

Abstract

The moisture diffusion coefficients and solubilities of Advanced Enclosed Mast/Sensor (AEM/S) sandwich constituent materials of interest have been determined at 22, 35, and 50 deg C and at 80 percent relative humidity. Expressions for calculating the diffusion coefficients and solubilities for any temperature of interest to marine environments are provided. The objective of this study was to provide input data for finite element moisture diffusion analyses that permits one to predict the moisture take-up and internal distributionas a function of time for composite mast sandwich structures in specified marine environments. The following materials were included in this investigation: E-glass/SP Systems 3113 epoxy, E-glass/510A vinyl-ester (RTM3), E-glass/G10 epoxy, Balsa wood type D57, PVC foam (Klegecell), and Nomex honeycomb phenolic core material. (MM)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1994
Accession Number
ADA289807

Entities

People

  • Joseph M. Augl

Organizations

  • Naval Surface Warfare Center Carderock Division

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Sensors

DTIC Thesaurus Topics

  • Aging (Materials)
  • Coefficients
  • Composite Materials
  • Diffusion Coefficient
  • Epoxy Composites
  • Experimental Data
  • Heat Of Activation
  • Honeycomb Cores
  • Laminates
  • Material Degradation Processes
  • Materials
  • Measurement
  • Mechanical Properties
  • Military Research
  • Naval Vessels
  • Navy
  • Regression Analysis

Readers

  • Forest Ecology
  • Polymer Science and Engineering.
  • Structural Health Monitoring of Composite Structures.