• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Reliability Engineering & System Safety >A durability model incorporating safe life methodology and damage tolerance approach to assess first inspection and maintenance period for structures
【24h】

A durability model incorporating safe life methodology and damage tolerance approach to assess first inspection and maintenance period for structures

机译：结合了安全寿命方法和损伤容限方法的耐用性模型，可评估结构的首次检查和维护周期

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

This paper outlines a new durability model to assess the first inspection and maintenance period for structures. Practical scatter factor formulae are presented to determine the safe fatigue crack initiation and propagation lives from the results of a single full-scale test of a complete structure. New theoretical solutions are proposed to determine the s_a-s_m,-N surfaces of fatigue crack initiation and propagation. Prediction techniques are then developed to establish the relationship equation between safe fatigue crack initiation and propagation lives with a specific reliability level using a two-stage fatigue damage cumulative rule. A new durability model incorporating safe life and damage tolerance design approaches is derived to assess the first inspection and maintenance period. Finally, the proposed models are applied to assess the first inspection and maintenance period of a fastening structure at the root of helicopter blade.
机译：本文概述了一种新的耐久性模型，用于评估结构的首次检查和维护周期。提出了实用的散射系数公式，以根据完整结构的一次全面测试结果确定安全疲劳裂纹的萌生和扩展寿命。提出了新的理论解来确定疲劳裂纹萌生和扩展的s_a-s_m，-N表面。然后使用两阶段疲劳损伤累积规则，开发预测技术以建立具有特定可靠性水平的安全疲劳裂纹萌生与扩展寿命之间的关系方程。得出了一种结合了安全寿命和损坏容限设计方法的新耐用性模型，以评估首次检查和维护周期。最后，将提出的模型用于评估直升机叶片根部紧固结构的首次检查和维护周期。

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