• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>International colloquium on ageing of materials and methods for the assessment of lifetimes of engineering plant >EXTENSION OF A CRACK GROWTH MODEL WITH FATIGUE-CREEP-ENVIRONMENT INTERACTION TO NON ISOTHERMAL LOADING
【24h】

EXTENSION OF A CRACK GROWTH MODEL WITH FATIGUE-CREEP-ENVIRONMENT INTERACTION TO NON ISOTHERMAL LOADING

机译：疲劳蠕变环境与非等温荷载相互作用的裂纹生长模型

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper deals with the extension of a crack growth model to high temperature, complex loading with application to a turbine disc. The proposed model is based on an extensive experimental study performed by SNECMA on superalloy N18 from 450°C to 650°C, in isothermal and also in non isothermal condition, which comprises fatigue with or without hold times and special sequence tests representative of the disc in service. The crack growth model is built up on the framework of classical linear elastic fracture mechanics. Time effects at high temperature are expressed by creep-fatigue and oxidation-fatigue interactions. The proposed work for non-isothermal condition is attractive for easy model identification on a large temperature domain. Model predictions are shown for a set of experimental data including complex loading in non-isothermal condition.
机译：本文涉及裂纹增长模型的延伸，在高温，复合加载到涡轮盘。所提出的模型基于Snecma对高温合金N18进行的大量实验研究，在450℃至650℃，等温和在非等温条件下，其包括疲劳或没有保持时间和代表光盘的特殊序列测试在服务中。裂纹增长模型建立在古典线性弹性骨折力学框架上。高温下的时间效应通过蠕变 - 疲劳和氧化 - 疲劳相互作用表示。非等温条件的建议工作对于大型温度域的易于模型鉴定是有吸引力的。显示模型预测，用于一组实验数据，包括在非等温条件下的复合载荷。

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