Sample Preservation - The Key to a Successful Failure Analysis

Abstract

Probably the most important, yet least understood step in failure analysis is sample preservation. The importance of this step cannot be overemphasized. Irreversible damage can occur if the proper steps are not taken to preserve the fractured specimen and associated components. This report discusses the techniques used to ensure samples are kept in the best possible condition for the failure analyst. Similar to a crime scene, every effort should be made by the crash site investigator to prevent postmortem harm to the failed component. Although not many publications reference this subject, or discuss it in detail, examples of a literature search and practical experience will be highlighted.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2008
Accession Number
ADA493766

Entities

People

  • Marc S. Pepi

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Biomedical
  • Human Systems
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acids
  • Advanced Materials
  • Chemical Analysis
  • Chemistry
  • Corrosion
  • Electron Microscopes
  • Engineering
  • Failure Analysis
  • Failure Mode And Effect Analysis
  • Hydrogen Embrittlement
  • Materials
  • Mechanical Properties
  • Military Research
  • Photographs
  • Photography
  • Scanning Electron Microscopes
  • Stress Corrosion Cracking

Readers

  • Aviation Safety Risk Assessment.
  • Systems Analysis and Design