Fatigue Life Prediction for Component with Local Structural Discontinuity Based on Stress Field Intensity

2019 ◽  
pp. 245-251
Author(s):  
Tianyang Lu ◽  
Peng Zhao ◽  
Fu-Zhen Xuan
Keyword(s):  
Fatigue Life ◽  
Stress Field ◽  
Field Intensity ◽  
Life Prediction ◽  
Fatigue Life Prediction ◽  
Structural Discontinuity

Fatigue life prediction of wire rope based on stress field intensity method

2017 ◽  
Vol 81 ◽  
pp. 1-9 ◽  
Author(s):  
Dan Zhao ◽  
Shaogang Liu ◽  
Qingtao Xu ◽  
Feng Shi ◽  
Wenyi Sun ◽  
...  
Keyword(s):  
Fatigue Life ◽  
Stress Field ◽  
Field Intensity ◽  
Life Prediction ◽  
Wire Rope ◽  
Fatigue Life Prediction

Fatigue life prediction of aero-engine compressor disk based on a new stress field intensity approach

2020 ◽  
Vol 165 ◽  
pp. 105190 ◽  
Author(s):  
Bingfeng Zhao ◽  
Liyang Xie ◽  
Jiaxin Song ◽  
Jungang Ren ◽  
Bowen Wang ◽  
...  
Keyword(s):  
Fatigue Life ◽  
Stress Field ◽  
Field Intensity ◽  
Life Prediction ◽  
Fatigue Life Prediction ◽  
Aero Engine ◽  
Engine Compressor ◽  
Compressor Disk

scholarly journals A modified stress field intensity approach for fatigue life prediction of components

2020 ◽  
Vol 190 ◽  
pp. 108537 ◽  
Author(s):  
Peng Zhao ◽  
TianYang Lu ◽  
Jian-Guo Gong ◽  
Fu-Zhen Xuan
Keyword(s):  
Fatigue Life ◽  
Stress Field ◽  
Field Intensity ◽  
Life Prediction ◽  
Fatigue Life Prediction

scholarly journals Fatigue life prediction method for notched 3D woven composites based on progressive damage and field intensity

2020 ◽  
Vol 15 ◽  
pp. 155892502097832
Author(s):  
Jiaming Xue ◽  
Weidong Wen ◽  
Haitao Cui
Keyword(s):  
Experimental Data ◽  
Fatigue Life ◽  
Fatigue Damage ◽  
Field Intensity ◽  
Life Prediction ◽  
Prediction Method ◽  
Fatigue Life Prediction ◽  
Woven Composites ◽  
Progressive Damage ◽  
3D Woven Composites

To solve the problem of fatigue life prediction of notched 3D woven composites, a novel fatigue life prediction method based on progressive damage and field intensity theory is proposed. By analyzing the initial loading process of 3D woven composite structure based on progressive damage method, the stress field when the fatigue damage develops gently and the dangerous area where the fatigue damage occurs first are obtained. Then combining with the concept of notch field intensity function, the failure criteria of composites and the three-dimensional space vector stress field intensity method, the fatigue damage degree field intensity of the fiber yarns in the dangerous area is analyzed and the most damaged fiber yarn is found. The fatigue life of the structure is calculated with the field intensity equivalent stress and the S-N curve of this fiber yarn. In order to verify the effectiveness of this method, the fatigue life of notched 3D woven composites under several stress levels is predicted and compared with the existing experimental data. The compared results show that the fatigue life prediction values are all within the two-fold error bounds of the experimental data, which are in good agreement with experimental results. Compared with the progressive damage fatigue life prediction method of woven composites, the prediction accuracy of the method proposed in this paper is improved by 31.5% on average, and the calculation efficiency is also greatly improved.

A Multiscale Design System for Fatigue Life Prediction

2007 ◽  
Vol 5 (6) ◽  
pp. 435-446 ◽  
Author(s):  
E. Gal ◽  
Z. Yuan ◽  
W. Wu ◽  
Jacob Fish
Keyword(s):  
Fatigue Life ◽  
Life Prediction ◽  
Fatigue Life Prediction ◽  
Design System
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