Evolution and Application of a hysteretic loop correction Fatigue Model

DOI

10.2991/icadme-15.2015.320How to use a DOI?

Keywords

Low Cycle Fatigue, High Cycle Fatigue, Life Prediction, Fatigue-Creep Interaction, Powder Metallurgy

Abstract

A hysteretic loop correction (HLC) model was established by introducing the position and shape correction factors of hysteretic loop in early study (International Journal of Pressure Vessels and Piping, 86 (2009) 616-621) based on the testing data of two Ni-based super alloys of FGH95 and GH4169. This paper attempts to develop a general expression of the model to correlate the data of high-cycle fatigue, thermal-mechanical fatigue, and multi-axial fatigue. The form of the generalized hysteretic loop correction (GHLC) model is similar to the total strain equation just the coefficients are not constants but variables. The model shows more comprehensive applicability under different kinds of testing conditions and correspondingly applied to the life evaluation of a powder metallurgy (PM) disc of turbo engine. The results illustrate an agreement with linear damage accumulation model’s calculation and design life of the disc.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Da-Sheng Wei
AU  - Kun Li
AU  - Yan-Rong Wang
AU  - Jing-Yun Gao
PY  - 2015/10
DA  - 2015/10
TI  - Evolution and Application of a hysteretic loop correction Fatigue Model
BT  - Proceedings of the 5th International Conference on Advanced Design and Manufacturing Engineering
PB  - Atlantis Press
SP  - 1733
EP  - 1742
SN  - 2352-5401
UR  - https://doi.org/10.2991/icadme-15.2015.320
DO  - 10.2991/icadme-15.2015.320
ID  - Wei2015/10
ER  -