• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>ASME(American Society of Mechanical Engineers) Pressure Vessels and Piping Conference vol.3: Design and Analysis; 20050717-21; Denver,CO(US) >SIMPLIFIED METHOD TO EVALUATE UPPER LIMIT STRESS INTENSITY FACTOR RANGE OF AN INNER-SURFACE CIRCUMFERENTIAL CRACK UNDER STEADY STATE THERMAL STRIPING
【24h】

SIMPLIFIED METHOD TO EVALUATE UPPER LIMIT STRESS INTENSITY FACTOR RANGE OF AN INNER-SURFACE CIRCUMFERENTIAL CRACK UNDER STEADY STATE THERMAL STRIPING

机译：稳态热应力作用下内圆周裂纹上限应力强度因子范围的简化计算方法

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

The upper limit stress intensity factor (SIF) range of an inner-surface circumferential crack in a thin- to thick-walled cylinder under steady state thermal striping was considered in this paper. The edges of the cylinder were rotation-restrained and the outer surface was adiabatically insulated. The inner surface of the cylinder was heated by a fluid with constant heat transfer coefficient whose temperature fluctuated sinusoidally at constant amplitude ΔT. By combining our analytical temperature solution for the problem and our semi- analytical numerical SIF evaluation method for the crack, we showed that the desired maximum steady state SIF range can be evaluated with an engineering accuracy after ΔT, the mean radius to wall thickness ratio r_m/W of the cylinder, the thermal expansion coefficient and Poisson's ratio are specified. No transient SIF analysis nor sensitivity analysis of the striping frequency on the SIF range is necessary. Numerical results showed that our method is valid for cylinders in a range of r_m/W=10 to 1.
机译：本文研究了稳态热剥离条件下薄壁至厚壁圆筒内表面圆周裂纹的上限应力强度因子（SIF）范围。圆柱体的边缘被限制旋转，并且外表面绝热绝缘。气缸的内表面被具有恒定传热系数的流体加热，该流体的温度以恒定幅度ΔT呈正弦波动。通过将我们针对问题的解析温度解决方案和针对裂纹的半解析数值SIF评估方法相结合，我们表明，可以在达到工程精度之后，ΔT，平均半径与壁厚比r_m的情况下，评估所需的最大稳态SIF范围。指定圆柱体的/ W，热膨胀系数和泊松比。无需进行瞬态SIF分析，也不需要对SIF范围内的条带频率进行灵敏度分析。数值结果表明，我们的方法对于r_m / W = 10到1的圆柱体是有效的。

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