The influence of stress-controlled tensile fatigue loading on the stress–strain characteristics of AISI 1045 steel

Moćko, W.

doi:10.1016/j.matdes.2014.02.021

Cited by 46 publications

(17 citation statements)

References 20 publications

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“…The first is cyclic hardening that results in increase of yield limit and tensile strength. 10,21 This behavior was observed at loading cases F1 and F3. Similar behavior was also found in earlier works for the 2017 aluminum alloy, 14 AISI 1045 steel, 21 and Ti6Al4V titanium alloy.…”

Section: Initial Cyclic Loadingsmentioning

confidence: 56%

“…10,21 This behavior was observed at loading cases F1 and F3. Similar behavior was also found in earlier works for the 2017 aluminum alloy, 14 AISI 1045 steel, 21 and Ti6Al4V titanium alloy. 22 The other papers concerning subsequent fatigue/impact loadings do not report on the tensile curves after a very low number of pre-fatigue cycles.…”

Section: Initial Cyclic Loadingsmentioning

confidence: 56%

“…Consequently, the distribution of the internal micro-strains within particular phases is also subjected to changes. This determines the mechanical behavior observed macroscopically, 21,22 locally, 8 and microscopically. 7 Initially, cyclic strengthening observed for n = 200 is the result of a high dislocation density and reduced dislocation mobility.…”

Section: Results Of the Experimental Studiesmentioning

confidence: 95%

“…This behavior is related to the initial hardening due to fatigue loadings. 21 Furthermore, increase in the number of cycles to 60,000 causes the reduction in the local strain to a value lower than for the material as delivered. Micro-damages are generated during subsequent fatigue cycles.…”

Section: Results Of the Experimental Studiesmentioning

confidence: 99%

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Effects of pre-fatigue on the strain localization during tensile tests of DP 500 steel at low and high strain rates

Moćko

Brodecki

Radziejewska

2015

The Journal of Strain Analysis for Engineering Design

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The analysis involved subjecting DP 500 steel to pre-fatigue loads, and then tension at high strain rates using Hopkinson bar. Digital image correlation method was used to investigate how the pre-fatigue loads change the strains' distribution on the surface of the sample subjected to tension. The analysis involved both films recorded at low rates of deformation (1.0 3 10 22 s 21) using ARAMIS system and the images captured with a high-speed camera during dynamic deformations with a Hopkinson bar (6.0 3 10 2 s 21). It was noted, based on the micro-structural analysis, that pre-fatigue loads cause the formation of micro-damages in the examined material. Thus, macroscopically observed stress-strain characteristic as well as Huber-Mises substitute strains' distribution determined locally by the image correlation method is also subject to changes. The observed effects include the following: reduction of deformation corresponding to the tensile strength, decrease in elongation at break, and increase in yield limit and tensile strength. The observed effects are intensified with an increased stress value and pre-fatigue cycles' number. Furthermore, these phenomena are more intensive in the conditions of dynamic deformation.

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Section: Initial Cyclic Loadingsmentioning

confidence: 56%

Section: Initial Cyclic Loadingsmentioning

confidence: 56%

Section: Results Of the Experimental Studiesmentioning

confidence: 95%

Section: Results Of the Experimental Studiesmentioning

confidence: 99%

See 2 more Smart Citations

Effects of pre-fatigue on the strain localization during tensile tests of DP 500 steel at low and high strain rates

Moćko

Brodecki

Radziejewska

2015

The Journal of Strain Analysis for Engineering Design

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“…This effect is apparent for fatigue exposures of 25% and 50% of the total fatigue life, however when increased to 75%, a significant decrease in residual flow stress is observed. In this case, two subsequent phenomena are being observed; cyclic hardening during initial cycles (50% fatigue life) followed by cyclic softening with the development of fatigue damage, when approaching and exceeding 75% of the total fatigue life [ 20 ]. This is an important observation in terms of landing gear components, who's dominating loading condition is fatigue.…”

Section: Resultsmentioning

confidence: 99%

On the effect of pre-strain and pre-fatigue on the monotonic behaviour of ultra-high strength steels

Cockings

Perkins

2020

Heliyon

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The mechanical behaviour of three ultra-high strength steels has been assessed; AerMet100, 300M and the recently developed corrosion resistant high strength steel, MLX-17. Material heat treatment profiles have been utilised to provide performance optimised for the aerospace industry and specimens have been tested to explore tensile and fatigue properties, in particular when combined with pre-strain to simulate the effects of overload. Testing of this kind has not been reported within the literature, particularly amongst ultra-high strength and corrosion-resistant steels. Baseline mechanical performance for all three materials in their heat-treated conditions has been established and properties such as yield strength and ultimate tensile strength have been assessed following a 75% and 95% pre-strain as well as fatigue in combination with a 75% and 95% pre-strain. Under all loading conditions, resultant tensile mechanical properties are not seen to witness a substantial degradation in performance, but an improvement in terms of yield strength and UTS, due to the role of work hardening. An alloy comparison has been carried out and responses are seen to vary slightly as a result of material microstructure. Correlation of pre-strain and pre-fatigue results with respect to baseline properties and microstructure has contributed to advancing the understanding of the mechanical behaviour of the aforementioned ultra-high strength steels.

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A Comparative Evaluation of the Effect of Low Cycle Fatigue and Creep–Fatigue Interaction on Surface Morphology and Tensile Properties of 316L(N) Stainless Steel

Mariappan

Shankar

Sandhya

et al. 2016

Metall Mater Trans A

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The influence of stress-controlled tensile fatigue loading on the stress–strain characteristics of AISI 1045 steel

Cited by 46 publications

References 20 publications

Effects of pre-fatigue on the strain localization during tensile tests of DP 500 steel at low and high strain rates

Effects of pre-fatigue on the strain localization during tensile tests of DP 500 steel at low and high strain rates

On the effect of pre-strain and pre-fatigue on the monotonic behaviour of ultra-high strength steels

A Comparative Evaluation of the Effect of Low Cycle Fatigue and Creep–Fatigue Interaction on Surface Morphology and Tensile Properties of 316L(N) Stainless Steel

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