Multiaxial Fatigue Test of Aeronautical Aluminum Alloy 2A12 and Research on Stress Criterion Life Predictive Model

被引：3

作者：

Chen Y. ^{[1
]}

Liu B. ^{[2
]}

Liu C. ^{[1
]}

Zhou J. ^{[1
]}

机构：

[1] Sino-European Institute of Aviation Engineering, Civil Aviation University of China, Tianjin

[2] China Southern Airlines Company Limited, Guangzhou

来源：

| 1600年 / Chinese Mechanical Engineering Society卷 / 28期

关键词：

2A12 aluminum alloy; Life prediction; Model modification; Multiaxial fatigue; Stress criterion;

D O I：

10.3969/j.issn.1004-132X.2017.09.015

中图分类号：

TG146.2+1 [铝]; TF821 [铝];

学科分类号：

摘要：

Based on multiaxial fatigue failures, compound fatigue tests of stress-amplitude ratio, tension-torsion phase and average stress variables were carried out on 2A12 aluminum alloy. With the discussions of 3 common multiaxial fatigue life predictive models of stress criterion which included Lee criterion, Carpinteri criterion and Sines criterion, a modified model was built on the basis of Carpinteri criterion considering effects of both stress-amplitude ratio and tension-torsion phase. The comparison between predicted life and experimental life under different conditions shows that Lee criterion's predictive results are too over-estimated for the above experiments. Without consideration of stress-amplitude ratio and tension-torsion phase, the predicted life of Carpinteri criterion and Sines criterion have large errors compared with the experimental life. The new modified stress criterion life predictive model may give results that 90 percent of life prediction data will be in the 2 times error band with different conditions. © 2017, China Mechanical Engineering Magazine Office. All right reserved.

引用

页码：1092 / 1096and1100

共 13 条

[1] Gough H.J., Crystalline Structure in Relation to Failure of Metals-Especially Fatigue, Proc. ASTM, American Society for Testing and Materials, 33, pp. 3-114, (1933)
[2] McDiarmid D.L., A General Criterion for High Cycle Multiaxial Fatigue Failure, Fatigue Fract. Engng. Mater. Struct., 14, pp. 429-453, (1991)
[3] Crossland B., Effect of Large Hydrostatic Pressure on the Torsional Fatigue Strength of an Alloy Steel, Proc. Int. Conf. on Fatigue of Metals, pp. 138-149, (1956)
[4] Cheng J., Yuan Y., Yu Z., Et al., Predicative Methods of Tovo-benasciutti Fatigue Life under Considering Mean Stress Effects, China Mechanical Engineering, 26, 2, pp. 196-199, (2015)
[5] Chen L., Zhang X., Ouyang P., A Life Prediction Model for Low Cycle Fatigue Based on Continuum Damage Mechanic, China Mechanical Engineering, 26, 18, pp. 2506-2517, (2015)
[6] Shen J., Tang D., Predicting Method for Fatigue Life with Stress Gradient, China Mechanical Engineering, 28, 1, pp. 40-44, (2017)
[7] Chen L., Zhang X., Liu F., Et al., Discussion of Low Cycle Fatigue Life Prediction Models for Magnesium Alloys, China Mechanical Engineering, 28, 5, pp. 512-518, (2017)
[8] Wu Z., Hu X., Song Y., Multi-axial Fatigue Life Prediction Model Based on Maximum Shear Strain Amplitude and Modified SWT Parameter, Journal of Mechanical Engineering, 49, 2, pp. 59-66, (2013)
[9] Sun N., Li G., Bai S., Et al., Study on Multiaxial Fatigue Criterion Based on Total Strain Energy, Journal of Ship Mechanics, 19, 4, pp. 406-411, (2015)
[10] Shi X., Zhang J., Bao R., Et al., Effect of Stress Amplitude on High-cycle Fatigue Life of 2A12-T4 Aluminum Alloy under Proportional Loading, Journal of Beijing University of Aeronautics and Astronautics, 36, 8, pp. 965-968, (2010)

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