Residual fatigue life prediction based on a novel damage accumulation model considering loading history

2020 ◽  
Vol 43 (5) ◽  
pp. 1005-1021 ◽  
Author(s):  
Z. Li ◽  
D. Shi ◽  
S. Li ◽  
X. Yang
Keyword(s):  
Fatigue Life ◽  
Life Prediction ◽  
Damage Accumulation ◽  
Fatigue Life Prediction ◽  
Loading History ◽  
Accumulation Model ◽  
Residual Fatigue Life ◽  
Damage Accumulation Model ◽  
Residual Fatigue

scholarly journals A Modified Nonlinear Damage Accumulation Model for Fatigue Life Prediction Considering Load Interaction Effects

2014 ◽  
Vol 2014 ◽  
pp. 1-7 ◽  
Author(s):  
Huiying Gao ◽  
Hong-Zhong Huang ◽  
Shun-Peng Zhu ◽  
Yan-Feng Li ◽  
Rong Yuan
Keyword(s):  
Experimental Data ◽  
Fatigue Life ◽  
Life Prediction ◽  
Damage Accumulation ◽  
Interaction Effects ◽  
Fatigue Life Prediction ◽  
Accumulation Model ◽  
Proposed Model ◽  
Fatigue Damage Accumulation ◽  
Damage Accumulation Model

Many structures are subjected to variable amplitude loading in engineering practice. The foundation of fatigue life prediction under variable amplitude loading is how to deal with the fatigue damage accumulation. A nonlinear fatigue damage accumulation model to consider the effects of load sequences was proposed in earlier literature, but the model cannot consider the load interaction effects, and sometimes it makes a major error. A modified nonlinear damage accumulation model is proposed in this paper to account for the load interaction effects. Experimental data of two metallic materials are used to validate the proposed model. The agreement between the model prediction and experimental data is observed, and the predictions by proposed model are more possibly in accordance with experimental data than that by primary model and Miner’s rule. Comparison between the predicted cumulative damage by the proposed model and an existing model shows that the proposed model predictions can meet the accuracy requirement of the engineering project and it can be used to predict the fatigue life of welded aluminum alloy joint of Electric Multiple Units (EMU); meanwhile, the accuracy of approximation can be obtained from the proposed model though more simple computing process and less material parameters calling for extensive testing than the existing model.

Equivalent damage-healing approach to residual fatigue life prediction for copper film by laser repair

2014 ◽  
Vol 24 (5) ◽  
pp. 750-766 ◽  
Author(s):  
Xiao-Dong Liu ◽  
De-Guang Shang ◽  
Li-Hong Zhang ◽  
Yu-Bo Guo ◽  
Yu-Juan Sun ◽  
...  
Keyword(s):  
Fatigue Life ◽  
Life Prediction ◽  
Copper Film ◽  
Fatigue Life Prediction ◽  
Residual Fatigue Life ◽  
Damage Healing ◽  
Residual Fatigue

Fatigue Damage Accumulation Model and Fatigue Life Predication of Composite Laminate T300/ Epoxy-Resin

2011 ◽  
Vol 474-476 ◽  
pp. 609-614
Author(s):  
Lei Wang ◽  
Tian Zhong Sui ◽  
Wen Qiang Lin
Keyword(s):  
Composite Material ◽  
Fatigue Life ◽  
Epoxy Resin ◽  
Fatigue Damage ◽  
Composite Laminate ◽  
Life Prediction ◽  
Damage Accumulation ◽  
Fatigue Life Prediction ◽  
Fatigue Damage Accumulation ◽  
Damage Accumulation Model

The Fiber Reinforced Plastic (FRP) has been widely used in aircraft, spacecraft, watercraft and transportation because of its excellent mechanical characteristics. The fatigue characteristic of the composite laminate of FRP is important guarantee to the structure security and reliability. In this paper, according to the damage mechanical theory, a fatigue damage accumulation model based on stiffness degradation and the corresponding method of fatigue life prediction are presented. The composite material of T300/ epoxy-resin with high performance has been investigated. The tension-tension fatigue tests have been conducted on the composite laminates. The fatigue life prediction of the composite material is presented. It shows a good agreement to the experimental and theoretical results.

211 Study on Fatigue Strength properties of Structural steel S45C, SCM435 and Residual Fatigue life Prediction of an Axle

2009 ◽  
Vol 2009.58 (0) ◽  
pp. 95-96
Author(s):  
Yoshitaka SUZUKI ◽  
Keiichiro TOHGO ◽  
Hiroyasu ARAKI ◽  
Yoshinobu SHIMAMURA ◽  
Atsuo SUGIURA ◽  
...  
Keyword(s):  
Fatigue Life ◽  
Fatigue Strength ◽  
Structural Steel ◽  
Life Prediction ◽  
Strength Properties ◽  
Fatigue Life Prediction ◽  
Residual Fatigue Life ◽  
Residual Fatigue

Residual fatigue life prediction of ball bearings based on Paris law and RMS

2012 ◽  
Vol 25 (2) ◽  
pp. 320-327 ◽  
Author(s):  
Dong Xu ◽  
Jin’e Huang ◽  
Qin Zhu ◽  
Xun Chen ◽  
Yongcheng Xu ◽  
...  
Keyword(s):  
Fatigue Life ◽  
Life Prediction ◽  
Fatigue Life Prediction ◽  
Ball Bearings ◽  
Paris Law ◽  
Residual Fatigue Life ◽  
Residual Fatigue
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