Scholarlink

<p>Fatigue damage due to cyclic loading has overwhelming importance in the assessment of the safety and integrity of structures. Damage tolerance analysis (DTA), an approach to conservatively estimate fatigue life, is employed in monitoring and forecasting the integrity of most commercial and defense aircraft structures as they age to ensure safety. DTA relies on empirically obtained fractographic crack growth data to validate the analytical methods in the analysis. These data are obtained through high-magnification imaging of a crack face using a scanning electron microscope and subsequent fatigue striation spacing measurement. A tool was coded in Python to allow rapid assessment and measurement of fatigue striations using extracted grayscale intensity profiles. The tool was successfully validated and demonstrated a significant efficiency increase over the traditional striation counting workflow method.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

A Software-Aided Approach to Increase Accuracy and Efficiency of Fractographic Image Analysis

  • 期刊论文

  • 发表日期：

    2026年3月12日

查看全文
  • John Macha,
  • Alexander Carpenter,
  • Frederick Heim,
  • David Wieland

摘要

Fatigue damage due to cyclic loading has overwhelming importance in the assessment of the safety and integrity of structures. Damage tolerance analysis (DTA), an approach to conservatively estimate fatigue life, is employed in monitoring and forecasting the integrity of most commercial and defense aircraft structures as they age to ensure safety. DTA relies on empirically obtained fractographic crack growth data to validate the analytical methods in the analysis. These data are obtained through high-magnification imaging of a crack face using a scanning electron microscope and subsequent fatigue striation spacing measurement. A tool was coded in Python to allow rapid assessment and measurement of fatigue striations using extracted grayscale intensity profiles. The tool was successfully validated and demonstrated a significant efficiency increase over the traditional striation counting workflow method.