...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>JSME International Journal. Series A >Near-Threshold Fatigue Crack Growth Behavior of SUS304 Steel at High Temperatures Using Interferometric Strain/ Displacement Gage (2nd Report, Fatigue Crack Growth Behavior)
【24h】

Near-Threshold Fatigue Crack Growth Behavior of SUS304 Steel at High Temperatures Using Interferometric Strain/ Displacement Gage (2nd Report, Fatigue Crack Growth Behavior)

机译：SUS304钢在高温下使用干涉应变/位移计的近阈值疲劳裂纹扩展行为（第二份报告，疲劳裂纹扩展行为）

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Fatigue crack growth tests were conducted at 450, 550, 650 and 700 (deg C) using type 304 stainless steel. Crack closure level was measured using the interferometric strain/displacement gage (I.S.D.G.), described in the previous paper. Crack growth rates for stress ratio R = -0.1 plotted against stress intensity factor range, ΔK, deviated from those for R = 0.5. Using the effective stress intensity factor range, ΔK_eff and effective J-integral range, Δ J_f,eff, which were calculated using crack opening ratio determined from the I.S.D.G. measurement, the crack growth behaviors for R = 0.1 and 0.5 were reconciled at each test temperature. A threshold value, ΔK_eff,th, of fatigue crack growth was determined at each test temperature investigated. It was found that the threshold value reached a maximum at a temperature between 450 and 550 (deg C).
机译：使用304型不锈钢在450、550、650和700（摄氏度）下进行了疲劳裂纹扩展测试。使用干涉应变/位移计（I.S.D.G.）来测量裂纹闭合水平，该方法在之前的论文中有所描述。应力比R = -0.1时的裂纹扩展速率与应力强度因子范围ΔK的关系曲线，与R = 0.5时的值不同。使用有效应力强度因子范围ΔK_eff和有效J积分范围ΔJ_f，eff，这些范围是使用从I.S.D.G.在每个测试温度下，对R = 0.1和0.5的裂纹扩展行为进行了协调。在研究的每个测试温度下确定疲劳裂纹扩展的阈值ΔK_eff，th。发现该阈值在450至550（℃）之间的温度达到最大值。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号