Fatigue life assessment for large components based on rainflow counted local strains using the damage domain

Bisping, J.R.; Peterwerth, B.; Bleicher, Christoph; Wagener, Rainer; Melz, Tobias

doi:10.1016/j.ijfatigue.2014.05.008

Cited by 16 publications

(6 citation statements)

References 4 publications

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“…The stress ratios for critical points are confirmed by the stress amplitude and mean spectrums. According to the GH960 material performance parameters table (see Table 6), the fatigue residual life of each critical point is calculated by Eqs (10)(11)(12)(13)(14)(15). The relative results are presented in Table 7.…”

Section: Fatigue Residual Life Calculationmentioning

confidence: 99%

“…8 (b)), the first principal stress-time histories of critical points are confirmed. Using the rain-flow counting method and Eqs (10)(11)(12)(13)(14)(15), the fatigue residual life results of critical points in the non-strengthening region are obtained under the damage stage before remanufacturing and the re-damage stage after remanufacturing. Meanwhile, for the remanufacturing finished stage, the fatigue remaining life results of critical points in local strengthening are confirmed by the fatigue residual life estimation for strengthening region of jib structure (Results provided by Zoomlion Heavy Industry Science and Technology Co., Ltd.), as shown in Table 9.…”

Section: Fatigue Remaining Life Of Jib Structure Under Remanufacturinmentioning

confidence: 99%

“…In order to estimate the fatigue life of welded joints, the equivalent crack method based on test data points is given in and the life estimation method based on fatigue crack propagation is described in . For the fatigue life of large components in heavy industrial equipment, J.R. Bisping established an application grade estimation model based on local strain dealt with the rain flow counting method. Simultaneously, the feasibility of the model is verified by comparing the calculated results with the experimental results.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Fatigue remaining life estimation for remanufacturing truck crane Jib structure based on random load spectrum

Dong

Ren

et al. 2016

Fatigue Fract Eng Mat Struct

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For remanufacturing truck cranes with the characteristic of single piece production, the coupling effect of multi‐physical fields and the correlation of multi‐defect modes are also faced in service. This causes that the safety of crane jib structures has great volatility and uncertainty and is difficult to be judged by fatigue test and damage test. To solve the above problems, an approach of fatigue remaining life evaluation based on random load spectrum is presented. By collecting operating cycle times corresponding to characteristic parameter values during the given time period, the small‐sample measured load spectrum is acquired. Six probability distribution models are used to fit the lifting weight sample in characteristic parameters and the optimal distribution model based on Akaike's information criterion (AIC) is obtained. With the Latin hypercube sampling (LHS) method, a random sample of lifting weight is determined within the fixed inspection cycle. In addition, combining with the rated lifting weight table of truck crane, the corresponding jib length and working range are confirmed. Through defining random values of character parameters and matched operating cycle times, a random load spectrum is gained, thus enabling the extension of measured load spectrum. Depending on the remanufacturing information database, the remanufacturing information of truck crane are retrieved to determine fatigue dangerous cross sections and critical points of jib structures. In order to reflect the variation of structure stress level, the equivalent cross sections of dangerous cross sections are constructed. The first principal stress–time history simulation model for critical points is established, and the rain‐flow counting technology is adopted to extract the two‐dimensional stress spectrum from simulation results. Using the Paris formula combined with the greatest risk principle, the fatigue residual life of jib structure is estimated. Furthermore, the fatigue remaining life evaluation system for jib structure of remanufacturing truck crane is developed for easier application of the proposed method. Finally, as an illustrative example, jib structures of ZLJ5551JQZ110V remanufacturing truck crane are provided to demonstrate the validity and feasibility of this method and system.

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Section: Fatigue Residual Life Calculationmentioning

confidence: 99%

Section: Fatigue Remaining Life Of Jib Structure Under Remanufacturinmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Fatigue remaining life estimation for remanufacturing truck crane Jib structure based on random load spectrum

Dong

Ren

et al. 2016

Fatigue Fract Eng Mat Struct

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show abstract

“…The theory of fatigue damage accumulation states that when the stress on a part exceeds the fatigue limit, each load cycle causes a certain amount of damage to the part, and this damage can accumulate; when the damage accumulates to a critical value, the part will fatigue failure. The linear fatigue damage accumulation theory holds that the fatigue damage generated by each cycle load is independent of each other, so the total damage is the linear accumulation of each fatigue damage [19]. According to the linear fatigue damage accumulation theory, the three dimensions of the WFS load can be arranged as follows: (1) Since the load amplitude of too small has no effect on the fatigue damage of the road, only the number of cycles with a magnitude above 1000 N is calculated in the rain flow…”

Section: Resultsmentioning

confidence: 99%

Wheel Force Sensor Based Techniques for Lose Detection and Analysis of the Special Road

Yan¹,

Zhang²,

Wang³

2018

Preprint

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Automobile proving ground is important for the research of vehicles which is used for the vehicle dynamics, durability testing, braking testing, etc. However, the roads in automobile proving ground will inevitably be damaged with the extension of the service life. In most previous researches, equipment similar to laser cross-section was used to detect pavement quality, the principle of which was to reflect pavement quality by detecting road surface roughness. This method ignores the elastic deformation of the roads itself when the vehicle is traveling on it and hardly compensate for the amendment. Therefore, this article presents a new method based on force sensor to reduce the impact of elastic deformation such as wheel tyre deformation, pavement deformation, and wheel rim deformation. In which, force sensors mounted on the wheels collect the three-dimensional dynamic load of the wheel.The presented method has been tested with two sets of cobblestone road load data, and the results show that The　incentives imposed by the test vehicle on the target road are 88.3%, 91.0%, and 92.05% of the incentives imposed by the test vehicle on the standard road in three dimensions, respectively. It is clear that the proposed method has strong potential effectiveness to be applied for lose detection of the special road application.

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“…One of the main advantages of continuum damage models is that they do not require cycle counting strategies (Anes et al, 2014;Bisping et al, 2014). However, it is not a simple task to do a mathematically correct and physically realistic description of the damage accumulation and of the strain-softening behaviour due to the degradation of the microstructure.…”

Section: Introductionmentioning

confidence: 99%

Modelling low-cycle fatigue tests using a gradient-enhanced continuum damage model

Mattos

2016

International Journal of Damage Mechanics

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This study is concerned with the modelling of uniaxial low-cycle fatigue tests using a gradient-enhanced continuum damage model. The aim of the paper is to show that a simple but adequate description can be performed using such kind of phenomenological approach. The model accounts for the coupling between plasticity and damage, including a mathematically consistent description of the softening behaviour and size dependency. It successfully predicts low-cycle fatigue and can deal with regular cycles. A consistent procedure to identify experimentally the constitutive parameters that appear in the theory is proposed. Lifetime predictions for different loading amplitudes are compared with experimental data for two aluminium alloys showing a good agreement. The one-dimensional model can be interpreted as a particular version of a more general gradient-enhanced damage model, which is summarized at the end of the paper.

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Fatigue life assessment for large components based on rainflow counted local strains using the damage domain

Cited by 16 publications

References 4 publications

Fatigue remaining life estimation for remanufacturing truck crane Jib structure based on random load spectrum

Fatigue remaining life estimation for remanufacturing truck crane Jib structure based on random load spectrum

Wheel Force Sensor Based Techniques for Lose Detection and Analysis of the Special Road

Modelling low-cycle fatigue tests using a gradient-enhanced continuum damage model

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