Accession Number:

ADA141197

Title:

Deformation and Fracture Maps for Polymer-Foams, Solid Polymers and Polymer-Composites.

Descriptive Note:

Final rept.,

Corporate Author:

CONSTRUCTION ENGINEERING RESEARCH LAB (ARMY) CHAMPAIGN IL

Personal Author(s):

Report Date:

1984-04-01

Pagination or Media Count:

90.0

Abstract:

This report describes an initial study of the development of deformation and fracture maps for classifying polymeric-based materials. It is in three parts. Part 1 describes how the mechanical behaviour of polymer-foams can be classified in terms of the properties of the cell wall and cell geometry, where a diagram of applied stress and strain displays information of the mechanisms of deformation and buckling. Part 2 shows how solid polymers can be classified by their mechanical response and mechanisms of deformation based on diagrams of modulus versus temperature with contours of constant time. Finally, Part 3 shows how models of the mechanisms of fracture of advanced polymer-composites can be used to construct diagrams where any 2 of number of composite properties are plotted against one another and contours of constant toughness and certain failure parameters, together with the dominant fracture mechanisms, are displayed. Author

Subject Categories:

  • Laminates and Composite Materials
  • Plastics
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE