Fatigue Life Evaluation of Bolt Having Tightening Torque under Random Loading

The fatigue life of hexagon head and socket head bolts, attached to vehicle a wheel, is assessed and the estimation of the residual life of existing bolts in vehicle wheel is investigated. Fieldmeasured load histories were applied in this test. Tensile tests and fatigue tests were performed to evaluate the effect of tightening torque and to obtain the basic experimental data. Miner’s rule was used to predict the fatigue life of bolts. The results indicate the prediction of fatigue life of the bolts was in good agreement with the real life of vehicle wheel bolts in this test.

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Fatigue life evaluation of deck to U-rib welds in orthotropic steel deck integrating weldment size effects on welding residual stress

Engineering Failure Analysis ◽

10.1016/j.engfailanal.2021.105359 ◽

2021 ◽

pp. 105359

Author(s):

Fei Jiang ◽

Zhongqiu Fu ◽

Bohai Ji ◽

Lv Wan

Keyword(s):

Residual Stress ◽

Fatigue Life ◽

Size Effects ◽

Welding Residual Stress ◽

Orthotropic Steel Deck ◽

Life Evaluation ◽

Fatigue Life Evaluation ◽

Steel Deck

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Multiaxial fatigue life evaluation using strain energy-based critical plane approach

Procedia Structural Integrity ◽

10.1016/j.prostr.2020.01.011 ◽

2019 ◽

Vol 22 ◽

pp. 78-83

Author(s):

Meng-Fei Hao ◽

Shun-Peng Zhu ◽

Fu-Long Xia

Keyword(s):

Fatigue Life ◽

Strain Energy ◽

Multiaxial Fatigue ◽

Critical Plane ◽

Life Evaluation ◽

Critical Plane Approach ◽

Fatigue Life Evaluation

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A Study on Fatigue Life Evaluation of Pressure Vessel Made of ASME SA240-316L Material Using Numerical Analysis

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.893.1 ◽

2019 ◽

Vol 893 ◽

pp. 1-5 ◽

Cited By ~ 1

Author(s):

Eui Soo Kim

Keyword(s):

Finite Element ◽

Fatigue Life ◽

Pressure Vessel ◽

Life Prediction ◽

Pressure Vessels ◽

Physical Damage ◽

Element Analysis ◽

Internal Damage ◽

Life Evaluation ◽

Fatigue Life Evaluation

Pressure vessels are subjected to repeated loads during use and charging, which can causefine physical damage even in the elastic region. If the load is repeated under stress conditions belowthe yield strength, internal damage accumulates. Fatigue life evaluation of the structure of thepressure vessel using finite element analysis (FEA) is used to evaluate the life cycle of the structuraldesign based on finite element method (FEM) technology. This technique is more advanced thanfatigue life prediction that uses relational equations. This study describes fatigue analysis to predictthe fatigue life of a pressure vessel using stress data obtained from FEA. The life prediction results areuseful for improving the component design at a very early development stage. The fatigue life of thepressure vessel is calculated for each node on the model, and cumulative damage theory is used tocalculate the fatigue life. Then, the fatigue life is calculated from this information using the FEanalysis software ADINA and the fatigue life calculation program WINLIFE.

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