Damage accumulation model for low cycle fatigue

Seweryn, A.; Buczyński, A.; Szusta, J.

doi:10.1016/j.ijfatigue.2007.03.019

Cited by 23 publications

(9 citation statements)

References 18 publications

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“…In Fig 7 the curves for expression (2) are plotted for different steels, taken from [8], [9]and [2] and together with the present test results. The values from [2] are taken directly from the paper whilst [8] and [9] are calculated with expression (2) and the values given in Table 4.…”

Section: Th International Symposium On Bridge and Structural Enginementioning

confidence: 96%

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Low-cycle fatigue strength of steel piles

Pétursson¹,

Eriksson²,

Collin³

2010

IABSE Symposium, Venice 2010: Large Structures and Infrastructures for Environmentally Constrained and Urbanised Areas

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In integral abutment bridges clamped abutment piles are in addition to a compressive normal force subjected to bending load cycles from daily and yearly temperature variations. Through experiments with full-scale specimens representing a clamped pile it is shown that a steel pipe pile loaded in bending can withstand several hundred load cycles at strain ranges greater than 6 times the yield strain with almost full load bearing capacity. By means of an example it is shown that by permitting pile strains greater than the yield strain, in contrast to most present design codes, integral abutment bridges can be erected with a span length up to 500m and a prospected service life of 120 years

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Section: Th International Symposium On Bridge and Structural Enginementioning

confidence: 96%

“…The values from [2] are taken directly from the paper whilst [8] and [9] are calculated with expression (2) and the values given in Table 4. Values are also calculated for ∆σ C = 160 MPa with expressions (1) and (2) as described above.…”

Section: Th International Symposium On Bridge and Structural Enginementioning

confidence: 99%

Low-cycle fatigue strength of steel piles

Pétursson¹,

Eriksson²,

Collin³

2010

IABSE Symposium, Venice 2010: Large Structures and Infrastructures for Environmentally Constrained and Urbanised Areas

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show abstract

“…The first phase is generally explained by a rapid change in the dislocation density inherited from the quench treatment, the second is related to the formation of dislocation sub-structure and carbide coarsening under the action of time, temperature and cyclic load, while the third phase is a consequence of micro-damage development in the material that ultimately causes failure of the tested sample (cf. Seweryn et al 2008;Szusta and Seweryn, 2010).…”

Section: Materials Behaviourmentioning

confidence: 99%

Modeling of cyclic thermo-elastic-plastic behaviour of P91 steel

Sulich

Egner

Mroziński

et al. 2017

jtam

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Thermomechanical low cycle fatigue behaviour of P91 steel used in power industry applications has been extensively investigated. The constitutive model of Armstrong-Frederick, extended with temperature rate effects, has been applied to describe the behaviour of the thermo-elastic-plastic material. The proposed model has been successfully implemented in simulation of low cycle fatigue of the examined steel in two different temperatures.

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“…Its value depends on the material properties [25][26][27][28]. If damage accumulation increases, thus d h >1 and oppositely, if damage accumulation decreases, then d h <1.…”

Section: The Concept and Mathematical Model Of Increasing The Cyclic mentioning

confidence: 99%

Increasing the cyclic strength of threaded joints through the unloading of cracked sections

Krenevičius

Kačianauskas

Leonavičius

et al. 2012

J min metall B Metall

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The cyclic strength of the axially loaded threaded joints is considered and the procedural method to increase their lifetime through the unloading of cracked sections is presented. The method operates by varying the mutual positions of the stud and the nut. It was shown how to exploit resources of the threaded joint after opening of the crack without reduction of the safety. The developed mathematical model allows control the accumulation of the fatigue damage as well as the crack growth in the roots of the stud thread. Increase of the cyclic lifetime is theoretically evaluated by the ratio of the numbers of loading cycles required to initiate cracks in the roots of unengaged and the most dangerous engaged turns of the stud. Performance of the elaborated technique is demonstrated by considering the crack growth in depth of the nut. The relative safety of the unloaded cross-sections containing cracks is studied. Comparison of the presented developments with standard safety requirements is presented

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Damage accumulation model for low cycle fatigue

Cited by 23 publications

References 18 publications

Low-cycle fatigue strength of steel piles

Low-cycle fatigue strength of steel piles

Modeling of cyclic thermo-elastic-plastic behaviour of P91 steel

Increasing the cyclic strength of threaded joints through the unloading of cracked sections

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