Time-Dependent Response of MI SiC/SiC Composites. Part 2: Samples with Holes

Abstract

Time-dependent response of samples with holes manufactured from MI SiC/SiC composites (01/01 material) was experimentally evaluated under creep and dwell fatigue loading. Forty specimens with a central hole with sizes 2.286, 4.572 and 6.35 mm were tested. All specimens showed primary and steady state creep responses. Environmental degradation was empirically related to material response at different stress levels utilizing information from samples without holes. ANSYS Finite Element Analysis was used to map the creep strain in the vicinity of the hole utilizing the empirical correlation.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 2007
Accession Number
ADA466684

Entities

People

  • G. Ojard
  • J. Ahmad
  • Jiayu Chen
  • R. John
  • Rachel A. Miller
  • U. Santhosh
  • Y. Gowayed

Organizations

  • Pratt & Whitney

Tags

Communities of Interest

  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Ceramic Materials
  • Ceramic Matrix Composites
  • Composite Materials
  • Creep
  • Fatigue Tests (Mechanics)
  • High Temperature
  • Manufacturing
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Testing
  • Military Research
  • Silicon Carbide
  • Steady State
  • Technical Ceramics

Fields of Study

  • Materials science

Readers

  • Materials Science (Mechanical Engineering).
  • Regression Analysis.
  • Structural Dynamics.