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Practical Failure Analysis

, Volume 2, Issue 6, pp 17–31 | Cite as

Post-failure evaluation of mechanical properties: A primer

  • Allan Lang
  • Bob McCabe
  • Daryll McKinley
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Abstract

Thorough analysis of a failed component sometimes requires mechanical testing in order to determine whether the original mechanical properties of the component met the requirements specified by the designer or manufacturer. During this testing, care must be taken so that the true, original properties are determined, unaffected by the component’s service conditions or the circumstances of the failure event. Additionally, mechanical testing may be performed to determine whether the failure was induced by an abnormal or unexpected service condition.

The types of mechanical testing employed during a failure analysis are the same as tests performed on raw materials or new components. These tests are discussed within this article, as well as their variability and reliability, including observations and precautions to assist the failure analyst in properly determining original mechanical properties.

Keywords

Fatigue Fatigue Life Weld Metal Fatigue Test Failure Analysis 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© ASM International - The Materials Information Society 2002

Authors and Affiliations

  • Allan Lang
    • 1
  • Bob McCabe
    • 2
  • Daryll McKinley
    • 3
  1. 1.Lang AnalyticalMilton
  2. 2.American Metallurgical ConsultantsAltamonte Springs
  3. 3.Pensacola

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