RISK ESTIMATION FOR LCF CRACK INITIATION

被引：0

作者：

Schmitz, Sebastian ^{[1
,3
]}

Gottschalk, Hanno ^{[2
]}

Rollmann, Georg ^{[1
]}

Krause, Rolf ^{[3
]}

机构：

[1] Siemens AG Energy, Gas Turbine Dept Mat & Technol, D-45473 Mulheim, Nordrhein Westf, Germany

[2] Berg Univ Wuppertal, Fac Math & Nat Sci, D-42097 Wuppertal, Nordrhein Westf, Germany

[3] Univ Svizzerra Italiana, Inst Computat Sci, CH-6900 Lugano, Ticino, Switzerland

来源：

PROCEEDINGS OF THE ASME TURBO EXPO: TURBINE TECHNICAL CONFERENCE AND EXPOSITION, 2013, VOL 7A | 2013年

关键词：

STRAINS;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

An accurate risk assessment for fatigue damage is of vital importance for the design and service of today's turbomachinery components. We present an approach for quantifying the probability of crack initiation due to surface driven low-cycle fatigue (LCF). This approach is based on the theory of failure-time processes and takes inhomogeneous stress fields and size effects into account. The method has been implemented as a finite-element postprocessor which uses quadrature formulae of higher order Results of applying this new approach to an example case of a gas-turbine compressor disk are discussed.

引用

页数：11

共 50 条

[1] A PROBABILISTIC MODEL FOR PREDICTION OF LCF SURFACE CRACK INITIATION IN PM ALLOYS
DEBUSSAC, A
LAUTRIDOU, JC
FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 1993, 16 (08) : 861 - 874
[2] LCF crack initiation in WB36 in high temperature water
Solomon, HD
DeLaire, RE
Tolksdorf, E
PROCEEDINGS OF THE NINTH INTERNATIONAL SYMPOSIUM ON ENVIRONMENTAL DEGRADATION OF MATERIALS IN NUCLEAR POWER SYSTEMS-WATER REACTORS, 1999, : 865 - 872
[3] Influence of LCF overloads on combined HCF/LCF crack growth
Byrne, J
Hall, RF
Powell, BE
INTERNATIONAL JOURNAL OF FATIGUE, 2003, 25 (9-11) : 827 - 834
[4] LCF INITIATED - HCF PROPAGATED CRACK LIFE ESTIMATION OF GAS TURBINE BOLTS
Paspulati, Amit K.
Veluru, Krishna
Akki, Kashinath
Khattar, Rohit
Bosu, Sudeep
Narasimhachary, Santosh
PROCEEDINGS OF THE ASME TURBO EXPO: TURBOMACHINERY TECHNICAL CONFERENCE AND EXPOSITION, 2018, VOL 7A, 2018, : 263 - 269
[5] Models for the estimation of weldment fatigue crack initiation life
Hou, CY
Charng, JJ
INTERNATIONAL JOURNAL OF FATIGUE, 1997, 19 (07) : 537 - 541
[6] Influence of sampling window on the estimation of interface crack initiation
Axelsen, MS
Pyrz, R
ADVANCES IN FRACTURE RESEARCH, VOLS 1-6, 1997, : 1143 - 1150
[7] Comparison of different approaches for estimation of creep crack initiation
Mueller, F.
Scholz, A.
Berger, C.
ENGINEERING FAILURE ANALYSIS, 2007, 14 (08) : 1574 - 1585
[8] Estimation of Crack Initiation Stress Based on Axial Crack Strain Expansion Rate
Dongsheng Wen
Xinzhi Wang
Haozhen Ding
Zhibin Fu
Rock Mechanics and Rock Engineering, 2023, 56 : 1025 - 1041
[9] Estimation of Crack Initiation Stress Based on Axial Crack Strain Expansion Rate
Wen, Dongsheng
Wang, Xinzhi
Ding, Haozhen
Fu, Zhibin
ROCK MECHANICS AND ROCK ENGINEERING, 2023, 56 (02) : 1025 - 1041
[10] Discussion of models for LCF small crack growth
Beretta, S.
Foletti, S.
Patriarca, L.
11TH INTERNATIONAL CONFERENCE ON THE MECHANICAL BEHAVIOR OF MATERIALS (ICM11), 2011, 10 : 3642 - 3649

← 1 2 3 4 5 →