Mode I Interlaminar Fracture Toughness Testing of a Ceramic Matrix Composite (PREPRINT)

Abstract

As ceramic matrix composites are being targeted for aerospace applications, key material properties need to be understood. This is especially true since the current 2-D architecture-based materials are fabricated by stacking plies that are prime paths for delaminations. Hence, an effort to understand the current test method for delamination toughness was initiated. Specifically, interest was in using a notch for the test and not a starter crack. A model ceramic matrix composite of a SiC fiber with a polymer infiltration pyrolysis derived ceramic matrix was used in this investigation. This material was machined as a double cantilever beam specimen. Testing was done under displacement control. This effort will discuss the testing and analysis of the double cantilever beam specimen.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 2010
Accession Number
ADA522031

Entities

People

  • G. Ojard
  • J. Ahmad
  • M. Dahlen
  • Rachel A. Miller
  • T. Barnett
  • U. Santhosh

Organizations

  • Pratt & Whitney

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Cantilever Beams
  • Ceramic Matrix Composites
  • Composite Materials
  • Delamination
  • Displacement
  • Manufacturing
  • Materials
  • Numerical Analysis
  • Standards
  • Tensile Properties
  • Tensile Strength
  • Tensile Testing
  • Test Methods
  • Toughness
  • Turbines

Fields of Study

  • Materials science

Readers

  • Reinforced Composite Materials
  • Software Engineering.
  • Structural Health Monitoring of Composite Structures.

Technology Areas

  • Space