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THERMOMECHANICAL FATIGUE LIFE OF TBCS-EXPERIMENTAL AND MODELING ASPECTS

机译:TBCS的热力学疲劳寿命-实验和建模方面

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摘要

The fatigue life of APS TBC under TMF loading has been studied. Failure can be by spallation from convex surfaces, spallation from flat or nearly flat surfaces and spallation from sharp edges. The damage evolution leading to final failure has been studied experimentally, and based on the experimental observations, a fracture-mechanical model for the formation and growth of cracks in or near the thermally grown oxide and for the final failure of the TBC has been set up.
机译:研究了在TMF载荷下APS TBC的疲劳寿命。失败的原因可能是凸起表面的剥落,平坦或接近平坦表面的剥落以及锋利边缘的剥落。对导致最终破坏的损伤演化进行了实验研究,并基于实验观察结果,建立了热力学氧化物内部或附近裂纹形成和扩展以及TBC最终破坏的断裂力学模型。 。

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  • 来源
  • 会议地点 Daytona Beach FL(US);Daytona Beach FL(US)
  • 作者单位

    Siemens Industrial Turbomachinery AB SE-612 83 FINSPANG, Sweden Department of Management and Engineering, Linkoping University SE-581 83 LINKOPING, Sweden;

    rnSiemens Industrial Turbomachinery AB SE-612 83 FINSPANG, Sweden Department of Management and Engineering, Linkoping University SE-581 83 LINKOPING, Sweden;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 陶瓷工业;
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