Influence of loading sequence and residual stresses affecting the fatigue life of axle housing and crack path analysis using local approaches

Prabhakar, M.; Prasad, Anil K.; Paswan, Manikant

doi:10.1016/j.engfailanal.2020.104753

Cited by 5 publications

(3 citation statements)

References 17 publications

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“…Several scholars have analyzed the crack propagation and residual life of different structures. [6][7][8][9][10][11][12][13] He 14 provided a method for predicting the crack path of welded joints. The influence of the yield strength on the crack propagation path of the welded joint was analyzed without considering other mechanical properties and residual stress.…”

Section: Introductionmentioning

confidence: 99%

Effect of optimized repaired structure with a hole on crack turning and fatigue life

Liao

Wang

2023

Proceedings of the Institution of Mechanical Engineers, Part E:

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A method for artificially promoting crack turning is introduced. By placing a crack-absorbing hole near the patch, the dual purpose of improving the crack deflection angle and prolonging the remaining lifespan of the repaired structure was achieved. Important components behind the patch were protected as well. The influence of the location and size of a single hole on the stress concentration and crack propagation path of an optimized repaired structure was studied using the finite element method. Simultaneously, the stress influence coefficient was introduced to characterize the “attraction” effect of stress at the edge of the opening on the crack propagation path. The results showed that the optimized patch size and the existence of holes led to the deflection of cracks toward the holes and a larger residual fatigue life. When the relative hole radius was 2.22%, the relative hole axial distance was 4% and the relative hole horizontal distance was 15.56% (with a relative patch width, length, and thickness of 35.7%, 50%, and 83.3%, respectively). The deflection angle increased and the residual fatigue life improved.

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Section: Introductionmentioning

confidence: 99%

Effect of optimized repaired structure with a hole on crack turning and fatigue life

Liao

Wang

2023

Proceedings of the Institution of Mechanical Engineers, Part E:

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“…The core function of the drive axle housing is to bear the weight of the vehicle, and the axle housing should have the characteristics of high strength and high stiffness 1 . Fatigue failure is one of the main reasons for the failure of axle housing, which bears alternating loads for a long time 2 . The fatigue life of weld mainly determine the fatigue life of welded axle housing 3,4 …”

Section: Introductionmentioning

confidence: 99%

“…1 Fatigue failure is one of the main reasons for the failure of axle housing, which bears alternating loads for a long time. 2 The fatigue life of weld mainly determine the fatigue life of welded axle housing. 3,4 At present, the fatigue life calculation of welded structures is mainly based on nominal stress or hot-spot stress method and a series of classified welding S-N curves, [5][6][7][8][9][10] although the fatigue life method based on local stress [11][12][13] provides an alternative method.…”

Section: Introductionmentioning

confidence: 99%

Research on fatigue reliability prediction model and structural improvement of welded drive axle housing based on master S‐N Curve method

Tan

Wang

Xie

et al. 2022

Quality & Reliability Eng

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Fatigue reliability prediction of welded structures is mainly based on nominal stress or hot spot stress method, but there are some problems such as grid sensitivity and joint geometry dependence. The Master S-N curve method can solve these problems well, but the corresponding reliability model needs to be studied. In this paper, the fatigue reliability model of welded structures based on the Master S-N curve method is studied. Considering the randomness of life and the correlation of failure, a reliability model is proposed, which reduces the computational burden by establishing a median damage-random threshold rule. Taking the welded drive axle housing as an object, the system reliability is analyzed under the bench test condition, and verified by the experimental data. After the verification, this method is used to predict the reliability of the axle housing under variable amplitude loading collected in the test field, and the results are verified by Monte Carlo (MC) method. When the P-S-N curves are parallel, the model is accurate, which is the characteristic of the Master S-N curve method. This method only needs to input the median damage value of the weak part, which is easy to be applied. This method can speed up the reliability prediction cycle of welded structures, which is beneficial to product innovation and optimal design. Finally, an improved design scheme is proposed for the weak parts of welding, and the effects of welding leg width, welding depth, and closed weld on fatigue life are revealed.

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Research on Residual Life Prediction Method of Composites Based on Equivalent Number of Cycles Conversion

Ma,

Feng,

et al. 2024

J Fail. Anal. and Preven.

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Influence of loading sequence and residual stresses affecting the fatigue life of axle housing and crack path analysis using local approaches

Cited by 5 publications

References 17 publications

Effect of optimized repaired structure with a hole on crack turning and fatigue life

Effect of optimized repaired structure with a hole on crack turning and fatigue life

Research on fatigue reliability prediction model and structural improvement of welded drive axle housing based on master S‐N Curve method

Research on Residual Life Prediction Method of Composites Based on Equivalent Number of Cycles Conversion

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