Influence of foreign object damage on fatigue crack growth of gas turbine aerofoils under complex loading conditions

被引：26

作者：

Hall, R. ^{[1
]}

Byrne, J. ^{[1
]}

Zhao, T. ^{[1
]}

Tong, J. ^{[1
]}

机构：

[1] Univ Portsmouth, Dept Mech & Design Engn, Portsmouth PO1 3DJ, Hants, England

来源：

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES | 2008年 / 31卷 / 05期

基金：

英国工程与自然科学研究理事会;

关键词：

aerofoil; combined loading; fatigue crack growth; FOD; residual stress;

D O I：

10.1111/j.1460-2695.2008.01238.x

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Foreign object damage (FOD) has been identified as one of the main life limiting factors for aeroengine blades, with the leading edge of aerofoils particularly susceptible. In this work, a generic edge 'aerofoil' geometry was utilized in a study of early fatigue crack growth behaviour due to FOD under low cycle fatigue (LCF), high cycle fatigue (HCF) and combined LCF and HCF loading conditions. Residual stresses due to FOD were analyzed using the finite element method. The longitudinal residual stress component along the crack path was introduced as a nodal temperature distribution, and used in the correction of the stress intensity factor range. The crack growth was monitored using a nanodirect current potential drop (DCPD) system and crack growth rates were correlated with the corrected stress intensity factor considering the residual stresses. The results were discussed with regard to the role of residual stresses in the characterization of fatigue crack growth. Small crack growth behaviour in FODed specimens was revealed only after the residual stresses were taken into account in the calculation of the stress intensity factor, a feature common to LCF, HCF and combined LCF + HCF loading conditions.

引用

页码：386 / 397

页数：12

共 34 条

[1] Characterisation of foreign object damage and fatigue strength in titanium based aerofoil alloys [J].

Bache, MR ;

Bradshaw, C ;

Voice, W .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 354 (1-2) :199-206

[2] The resistance to impact damage and subsequent fatigue response of two titanium alloys [J].

Bache, MR ;

Evans, WJ ;

Voice, W .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2002, 333 (1-2) :287-294

[3]

BACHTEL B, 1998, AEROMAGAZINE, V1

[4] Mechanical relaxation of localized residual stresses associated with foreign object damage [J].

Boyce, BL ;

Chen, X ;

Peters, JO ;

Hutchinson, JW ;

Ritchie, RO .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 349 (1-2) :48-58

[5] Effect of load ratio and maximum stress intensity on the fatigue threshold in Ti-6Al-4V [J].

Boyce, BL ;

Ritchie, RO .

ENGINEERING FRACTURE MECHANICS, 2001, 68 (02) :129-147

[6] Particle impact on metal substrates with application to foreign object damage to aircraft engines [J].

Chen, X ;

Hutchinson, JW .

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 2002, 50 (12) :2669-2690

[7] Single supplier scheduling for multiple deliveries [J].

Cheng, TCE ;

Kovalyov, MY .

ANNALS OF OPERATIONS RESEARCH, 2001, 107 (1-4) :51-63

[8]

COOK G, 2002, UK ABAQUS US GROUP C

[9] AN ELASTIC-PLASTIC ANALYTICAL MODEL FOR PREDICTING FATIGUE-CRACK GROWTH IN ARBITRARY EDGE-CRACKED 2-DIMENSIONAL GEOMETRIES WITH RESIDUAL-STRESS [J].

DANIEWICZ, SR ;

COLLINS, JA ;

HOUSER, DR .

INTERNATIONAL JOURNAL OF FATIGUE, 1994, 16 (02) :123-133

[10] Fatigue crack growth from foreign object damage under combined low and high cycle loading. Part II: A two-parameter predictive approach [J].

Ding, J. ;

Hall, R. F. ;

Byrne, J. ;

Tong, J. .

INTERNATIONAL JOURNAL OF FATIGUE, 2007, 29 (07) :1350-1358

← 1 2 3 4 →