Results 1 to 10 of about 126,861 (303)

Plasticity of a colloidal polycrystal under cyclic shear [PDF]

open access: yesPhysical Review Letters, 2014
We use confocal microscopy and time-resolved light scattering to investigate plasticity in a col- loidal polycrystal, following the evolution of the network of grain boundaries as the sample is submitted to thousands of shear deformation cycles.
Cipelletti, Luca   +2 more
core   +6 more sources

Configurational forces in cyclic metal plasticity [PDF]

open access: yesMATEC Web of Conferences, 2019
The configurational force concept is known to describe adequately the crack driving force in linear fracture mechanics. It seems to represent the crack driving force also for the case of elastic-plastic material properties. The latter has been recognized
Tsakmakis Aris, Vormwald Michael
doaj   +2 more sources

Fatigue life assessment of a non-load carrying fillet joint considering the effects of a cyclic plasticity and weld bead shape [PDF]

open access: yesFracture and Structural Integrity, 2016
Fatigue life depends strongly on irreversible contributions that accumulate during cyclic loading and unloading of structures. However, the correct identification of the loading path in terms of uniaxial or multi-axial stress states, proportional or non ...
S. Tsutsumi   +3 more
doaj   +2 more sources

Investigation of Chaboche and Bouc–Wen Parameters of Quenched and Tempered Steel and Comparison of Model Predictive Capabilities

open access: yesApplied Sciences, 2023
The aim of this paper is to model the elastic–plastic uniaxial behaviour of a quenched and tempered steel. The common Chaboche isotropic kinematic hardening model (CIKH) is introduced, and a physics-based procedure is proposed to determine its parameters.
Ciro Santus   +7 more
doaj   +1 more source

Evaluating the effectiveness of combined hardening models to determine the behavior of a plate with a hole under combined loadings

open access: yesEuropean Mechanical Science, 2022
Geometrical discontinuities in a material such as holes and notches on machine elements are called as critical regions due to the stress concentrations. They are the potential failure initiation locations Therefore, researchers put significant effort on ...
Toros Arda Akşen   +2 more
doaj   +1 more source

Characterisation of LCF performance of X100 weld-joints: Mechanistic yield strength modelling, finite element analyses and DIC testing

open access: yesJournal of Advanced Joining Processes, 2021
This paper is concerned with the effect of welding on the fatigue behaviour of X100 material for steel catenary risers. The methodology includes both modelling and experimental characterisation.
D.J. Long   +5 more
doaj   +1 more source

Measurement and simulation of crack growth rate and direction under non-proportional loadings [PDF]

open access: yesFracture and Structural Integrity, 2015
A series of fatigue experiments on thin-walled tubes under tension and torsion, the experimental results – crack path and crack growth life – are measured and compared.
Y. Hos, M. Vormwald
doaj   +3 more sources

Hysteretic behavior modeling of elastoplastic materials [PDF]

open access: yesTheoretical and Applied Mechanics, 2008
In the present paper the Preisach model of hysteresis is applied to model cyclic behavior of elasto-plastic material. Rate of loading and viscous effects will not be considered. The problem of axial loading of rectangular cross section and cyclic bending
Šumarac Dragoslav   +2 more
doaj   +1 more source

Compelling Evidence for the Role of Retained Austenite in the Formation of Low Cycle Fatigue Extrusions in a 9Ni Steel

open access: yesMetals, 2023
The 9Ni martensitic steels have a martensitic microstructure which contains retained austenite after solution heat treatment and water quenching. Under low cycle fatigue, extrusions formed at the surface of the material and were very close to martensite ...
Mahira A. Cota Araujo   +5 more
doaj   +1 more source

Fuzzy Plastic Constitutive Model and Its Application to Subgrade

open access: yesAdvances in Civil Engineering, 2021
The subgrade of a road is subjected to cyclic loading and unloading under the action of traffic loads. To study this mechanical response, the plastic membership function was introduced into the modified Cambridge model, and thus, the fuzzy plastic ...
Xigang Wang   +3 more
doaj   +1 more source

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