Fatigue strength analysis of welded joints in closed steel sections in rail vehicles

Esderts, Alfons; Willen, J.; Kassner, M.

doi:10.1016/j.ijfatigue.2011.06.007

Cited by 24 publications

(17 citation statements)

References 1 publication

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“…R ¼ À1 and R ¼ 0). As opposite to what reported in [3,4,[8][9][10] failures mainly originated from the weld root where a severe notch, typical of fillet welding, was present (only few failures from the weld toe were observed in some of bending tests). In [15] it was observed that for the examined joint the load ratio had a significant effect on the fatigue endurance only in case of bending loading, while no appreciable effect was present in case of torsion loading.…”

Section: Introductioncontrasting

confidence: 80%

“…As already documented in that work all the failures originated at the weld root where a severe notch is present (see Fig. 2), in contrast to what found in the technical literature for similar joints for combined bending and torsion (see [3,4,[8][9][10]). For this reason the results could not be easily compared to those present in the literature and, in the following, will be given on the basis of nominal stresses, that were easily evaluated considering an annular cross section of the weld having 64 mm internal diameter and 6.1 mm width.…”

Section: Resultsmentioning

confidence: 49%

“…In the present paper, the fatigue resistance of a typical pipe-to-plate welded joint was investigated under in-phase and out-of-phase multiaxial loading conditions. The fatigue resistance of similar joint with fillet welding under pure and combined tension and torsion has been discussed in [3,4,8], while the fatigue resistance of a similar joint with bevel butt weld has been discussed in [9,10].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Fatigue resistance of pipe-to-plate welded joint under in-phase and out-of-phase combined bending and torsion

Frendo¹,

Bertini²

2015

International Journal of Fatigue

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Section: Introductioncontrasting

confidence: 80%

Section: Resultsmentioning

confidence: 49%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Fatigue resistance of pipe-to-plate welded joint under in-phase and out-of-phase combined bending and torsion

Frendo¹,

Bertini²

2015

International Journal of Fatigue

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“…To this effect, the load conditions of the bogie frame are highly complex and accurately assessing its fatigue strength is very challenging. Numerous welded structures of railway vehicles are safety critical [23,24]. The dynamic stress on-track test, one of the most feasible and effective approaches to obtaining fatigue stress cycles [25], was utilized in this study on a long-term China high-speed train program to explore the dynamic stress response of the bogie frame.…”

Section: Introductionmentioning

confidence: 99%

Methodology to Evaluate Fatigue Damage of High-Speed Train Welded Bogie Frames Based on On-Track Dynamic Stress Test Data

Yang

Wang

et al. 2019

Chin. J. Mech. Eng.

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The current method of estimating the fatigue life of railway structures is to calculating the equivalent stress amplitude based on the measured stress data. However, the random of the measured data is not considered. In this paper, a new method was established to compute the equivalent stress amplitude to evaluate the fatigue damage based on the measurable randomness, since the equivalent stress is the key parameter for assessment of structure fatigue life and load derivation. The equivalent stress amplitude of a high-speed train welded bogie frame was found to obey normal distribution under uniform operation route that verified by on-track dynamic stress data, and the proposed model is, in effect, an improved version of the mathematical model used to calculate the equivalent stress amplitude. The data of a long-term, on-track dynamic stress test program was analyzed to find that the normal distribution parameters of equivalent stress amplitude values differ across different operation route. Thus, the fatigue damage of the high-speed train welded bogie frame can be evaluated by the proposed method if the running schedule of the train is known a priori. The results also showed that the equivalent stress amplitude of the region connected to the power system is more random than in other regions of the bogie frame.

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“…In particular, the fatigue life evaluation method for multiaxial load has not been defined. Therefore, a number of detailed studies on the fatigue life evaluation of bogie frames have been conducted [1,10,11]. However, there have been few studies on the fatigue life evaluation method and the characteristics of the stress history that occur in the fatigue test and the track test.…”

Section: Introductionmentioning

confidence: 99%

Fatigue Design Evaluation of Railway Bogie with Full-Scale Fatigue Test

Seo

Hur

Jun

et al. 2017

Advances in Materials Science and Engineering

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The bogie frame of a railway is an important structural member for the support of vehicle loading. In general, more than 25 years’ durability is necessary. Much study has been carried out in experimental and theoretical domains on the prediction of the structural integrity of the bogie frame. The objective of this paper is to estimate the structural integrity of the bogie frame of an electric railcar. Strength analysis has been performed by finite element analysis. From this analysis, stress concentration areas were investigated. To evaluate the loading conditions, dynamic stress was measured by strain gauge. It has been found that the stress and strain due to the applied loads were multiaxial conditions according to the location of the strain gauge. Fatigue strength evaluations of the bogie frame were performed to investigate the effect of a multiaxial load through the employment of a critical plane approach.

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Fatigue strength analysis of welded joints in closed steel sections in rail vehicles

Cited by 24 publications

References 1 publication

Fatigue resistance of pipe-to-plate welded joint under in-phase and out-of-phase combined bending and torsion

Fatigue resistance of pipe-to-plate welded joint under in-phase and out-of-phase combined bending and torsion

Methodology to Evaluate Fatigue Damage of High-Speed Train Welded Bogie Frames Based on On-Track Dynamic Stress Test Data

Fatigue Design Evaluation of Railway Bogie with Full-Scale Fatigue Test

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