Application of multi-scale modelling in aeroengine component life assessment

G.F. Harrison; P.H. Tranter; D.P Shepherd; T. Ward

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Application of multi-scale modelling in aeroengine component life assessment

机译：多尺度建模在航空发动机零部件寿命评估中的应用

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The paper provides an overview of the procedures used to determine the safe service lives of aeroengine components, with particular reference to the role of scale in lifing models. It is shown how the volume of material tested influences the declared service life of fracture critical components. The development of a combined micromechanical-macromechanical model for the life assessment of the anisotropic behaviour of advanced single crystal turbine blade materials is discussed. The role of micro-scale modelling in predicting the low cycle fatigue (LCF) behaviour of long fibre metal matrix composite components is also discussed. The final case considered is that of al microstructural model used in the life assessment of ceramic matrix composites.

机译：本文概述了用于确定航空发动机部件的安全使用寿命的程序，尤其是规模在起重模型中的作用。它显示了所测试材料的体积如何影响断裂关键部件的声明使用寿命。讨论了用于评估高级单晶涡轮叶片材料各向异性行为的寿命的微机械-宏观机械组合模型的开发。还讨论了微观模型在预测长纤维金属基复合材料组件的低周疲劳（LCF）行为中的作用。最后考虑的情况是用于陶瓷基复合材料寿命评估的微结构模型。

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来源
《Materials Science and Engineering. A, Structural Materials》 |2004年第2期|p.247-256|共10页
作者
G.F. Harrison; P.H. Tranter; D.P Shepherd; T. Ward;
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作者单位

Airworthiness and Structural Integrity QinetiQ, Farnborough Hants GU14 0LX, UK;

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原文格式 PDF
正文语种 eng
中图分类工程材料学;
关键词
multi-scale modelling; single crystal; component lifing; creep; fatigue; composites;

机译：多尺度建模;单晶;起振;蠕变;疲劳;复合;

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4. A Review of Fatigue Life Assessment Procedures for Aeroengine Fracture Critical Components [C] . W J Evans, G. F. Harrison International conference of the Engineering Integrity Society . 2000

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Application of multi-scale modelling in aeroengine component life assessment

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