Effect of fatigue strain range on properties of high-strength structural steel

Grenier, D.; Das, Sreekanta; Hamdoon, Muhsin

doi:10.1016/j.marstruc.2010.01.002

Cited by 8 publications

(5 citation statements)

References 9 publications

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“…The preliminary study by Grenier et al. [2] on relatively stronger steel (AISI 1018) specimens also showed a similar behaviour although the tests were undertaken under strain control with a strain amplitude of 1500 micro strain.…”

Section: Introductionmentioning

confidence: 78%

“…Steel members such as angle, channel, and other sections are welded on the virgin steel plates to build stiffened steel plates. The welding process creates residual stresses in the plate and the residual stresses often reach and even exceed the level of yield stress [1, 2]. Ship hull in service experiences continuous cyclic loadings from the ocean waves and ship motions.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Study on the Effect of Strain Cycles on Mechanical Properties of AISI 1022 Steel

Hamdoon

Das

Zamani

et al. 2010

Strain

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The effect of cyclic loading on various mechanical properties of AISI 1022 steel was investigated in this study using laboratory-based experimental method. Groups of specimens were tested in push-pull strain-controlled cyclic loading. Some of these specimens were tested to failure in pure fatigue tests. For the remaining specimens, cyclic loading tests were terminated at a specific number of cycles and these specimens were then tested to failure in quasi-static tension. It was found that the strength increased, while the ductility and toughness decreased because of applications of strain cycles. As reduction in ductility weakens plastic strain resistance, and drop in toughness reduces resistance to fracture of this steel, the quasi-static mechanical behaviour is expected to change as a consequence of application a certain number of strain cycles. This study therefore suggests that these changes in mechanical properties have to be contemplated in the associated design processes.Effect of Strain Cycles on Mechanical Properties of AISI 1022 Steel : M. Hamdoon et al.

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Section: Introductionmentioning

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Effect of Strain Cycles on Mechanical Properties of AISI 1022 Steel

Hamdoon

Das

Zamani

et al. 2010

Strain

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“…5. It can be seen that the material without pre-torsion firstly had cyclic hardening effect [12], and then entered the stable stress stage until failure. In order to resist the external load, the dislocation arrangement of the material would evolve towards the direction of improving the overall property.…”

Section: Cyclic Response Characteristicmentioning

confidence: 99%

Effect of Preliminary Torsional Strain on Low-Cycle Fatigue of Q345B Structural Steel

Liu

Huang

et al. 2019

Strength Mater

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Effect of preliminary torsional strain on low-cycle fatigue of Q345B steel was studied. The specimens were first 0, 180, and 360°twisted, then the low-cycle fatigue of Q345B steel was evaluated in the strain range of 0.3-0.8% by the method of axisymmetrical strain. The cycling response, cyclic stress-strain relationship, strain-life relationship, fatigue life prediction model, and seismic stability at different torsion angles were obtained and analyzed. The strain-life curve is shown to slope down as a power function. The fatigue life comes down with preliminary torsional strain at a constant level. The cycling response varied from cyclic hardening to cyclic softening in preliminary torsion, and the cyclic hardening rate increased linearly with the strain amplitude. The parameters of the Coffin-Manson relation are corroborated with experimental data. After heat treatment, the seismic stability of the material is improved, with torsional strain greatly reducing this characteristic. Electron microscope examination of fatigue fracture revealed a fatigue crack initiating on the surface of the specimen. The propagating crack deviated from its direction, and plasticity of the material dropped as a result of preliminary torsional strain.

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“…Therefore, it is necessary for the safe and reliable use of the buildings to detect the health status, identify structural damage early and take measures in time to prevent damage from development of the building structure. Studies have shown that [6,7]: fatigue damage is closely related to the mechanical properties of metallic materials. However, fatigue damage to the mechanical properties as well as the carrying capacity of the HRB400E steel rebar has not been reported yet.…”

Section: Introductionmentioning

confidence: 99%

Investigation on the Influence of Fatigue Damage on the Mechanics Property of Anti-Seismic Steel HRB400E Reinforcing Steel Bars

Luo

Zeng

2013

AMM

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Low cycle fatigue (LCF) experiments on anti-seismic steel HRB400E reinforcing steel bars under constant total strain (0.6%) control were conducted on a MTS 809 servo-hydraulic material testing machine. The specimens were then subjected to quasi-static tension until they ruptures on the machine. The mechanical properties such as cyclic stress-strain behaviour, quasi-static strength, and quasi-static ductility of the material at various levels of fatigue damage were investigated .The test results indicate that when compared to its virgin state, in a certain cycles (about 80% fatigue life) the cycle-dependent behaviors of the material can cause a slight change in the strength and ductility, and the ductility of the steel has an opposite trend to the strength. However, a significant decrease occurs to both the strength and the ductility as the cyclic cycles exceeds about 80% fatigue life.

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Effect of fatigue strain range on properties of high-strength structural steel

Cited by 8 publications

References 9 publications

Experimental Study on the Effect of Strain Cycles on Mechanical Properties of AISI 1022 Steel

Experimental Study on the Effect of Strain Cycles on Mechanical Properties of AISI 1022 Steel

Effect of Preliminary Torsional Strain on Low-Cycle Fatigue of Q345B Structural Steel

Investigation on the Influence of Fatigue Damage on the Mechanics Property of Anti-Seismic Steel HRB400E Reinforcing Steel Bars

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