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疲劳失效准则在钛合金BT9低周 疲劳寿命估算中的应用

于海生

机械科学与技术2001,Vol.20Issue(1):66-68,3.
机械科学与技术2001,Vol.20Issue(1):66-68,3.

疲劳失效准则在钛合金BT9低周 疲劳寿命估算中的应用

The Application of Fatigue Failure Criteria to Low-cycle Fatigue Lifetime Prediction of Titanium Alloy BT9

于海生1

作者信息

  • 1. 东北大学,
  • 折叠

摘要

Abstract

Strain controlled low-cycle fatigue tests of titanium alloy BT9 under pull-push, torsion and combined axial and torsional proportional loading were carried out. The experimental data of the titanium alloy BT9 were obtained. Several criteria of lifetime prediction and their precision were discussed. A modification of the generalized fatigue criterion of Makinde-Neale was brought forward based on the analysis of Brown-Miller and Makinde-Neale's theory. The lifetime predictions were conducted by using the modification for titanium alloy BT9 under multiaxial strain conditions. The predicted results are in good agreement with experimental results.

关键词

低周疲劳/寿命预测/等寿命曲线

分类

矿业与冶金

引用本文复制引用

于海生..疲劳失效准则在钛合金BT9低周 疲劳寿命估算中的应用[J].机械科学与技术,2001,20(1):66-68,3.

机械科学与技术

OA北大核心CSCD

1003-8728

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