Scholarlink

Abstract <p>The acoustic emission (AE) technique developed at the Mechanical Engineering Research Institute, Russian Academy of Sciences to monitor the kinetics of micro-, meso-, and macrodamage in structural elements and to estimate their load-bearing capacity under a mechanical action is applied to VT5-1 titanium alloy specimens subjected to fatigue tests at symmetric bending loading cycles, a frequency of 10 Hz, and an amplitude of 6 mm. The influence of the bilateral edge notch depth in the maximum-stress zone (along the clamped end) on the load-bearing capacity of a specimen is determined. At a notch depth of 0, 1, and 3 mm, the number of cycles to failure is 56 642, 52 261, and 30 884, respectively. The proposed technique is shown to reliably reflect the kinetics of micro-, meso-, and macrodamage and the decrease in the load-bearing capacity of the specimens, and their fatigue life correlates with the total number of accumulated locational AE pulses.</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

Acoustic Emission Diagnostics of the Load-Bearing Capacity of Titanium Specimens during Fatigue Tests

  • 期刊论文

  • 发表日期：

    2026年1月1日

查看全文
  • N. A. Makhutov,
  • Yu. G. Matvienko,
  • I. E. Vasil’ev

摘要

Abstract

The acoustic emission (AE) technique developed at the Mechanical Engineering Research Institute, Russian Academy of Sciences to monitor the kinetics of micro-, meso-, and macrodamage in structural elements and to estimate their load-bearing capacity under a mechanical action is applied to VT5-1 titanium alloy specimens subjected to fatigue tests at symmetric bending loading cycles, a frequency of 10 Hz, and an amplitude of 6 mm. The influence of the bilateral edge notch depth in the maximum-stress zone (along the clamped end) on the load-bearing capacity of a specimen is determined. At a notch depth of 0, 1, and 3 mm, the number of cycles to failure is 56 642, 52 261, and 30 884, respectively. The proposed technique is shown to reliably reflect the kinetics of micro-, meso-, and macrodamage and the decrease in the load-bearing capacity of the specimens, and their fatigue life correlates with the total number of accumulated locational AE pulses.