Effect of Cycle Duration and Phasing on Thermomechanical Fatigue of Dog-Bone Specimens Made form Steel

Achegaf, Zineb; Khamlichi, Abdellatif; Cabrera, Francisco Mata

doi:10.3844/ajeassp.2010.740.748

Cited by 10 publications

(5 citation statements)

References 38 publications

(45 reference statements)

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“…To obtain a thermal stress loading under homogeneous uniform temperature distribution, the 6061 aluminum alloy was restrained against axial expansion by creating an interaction boundary condition at its outside edge. In order to determine thermal strain in the analysis we have need to the thermal expansion coefficient α [10]. Poisson's coefficient does not depend on temperature and takes the constant value υ=0.…”

Section: Geometry Of the Numerical Model And Mechanical Thermal Prope...mentioning

confidence: 99%

Finite Element Simulation of Complex Thermomechanical Fatigue Evolution

Amri

Haddou

Khamlichi³

2017

MSF

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Fatigue failures occur due to the application of fluctuating stresses that are much lower than the stress required to cause failure during a single application of stress. The process is dangerous because a single application of the load would not produce any ill effects, and a conventional stress analysis might lead to assumption of safety that does not exist. The fatigue process is thought to begin at an internal or surface flaw here the stresses are concentrated, and consists initially of shear flow along slip planes. The mechanisms of fatigue-crack propagation are examined with particular emphasis on the similarities and differences between cyclic crack growth in ductile materials, such as metals, and corresponding behavior in brittle materials, such as intermetallic and ceramics. Fatigue, as understood by materials technologists, is a process in which damage accumulates due to the repetitive application of leads that may be well below the yield point.

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Section: Geometry Of the Numerical Model And Mechanical Thermal Prope...mentioning

confidence: 99%

Finite Element Simulation of Complex Thermomechanical Fatigue Evolution

Amri

Haddou

Khamlichi³

2017

MSF

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“…To obtain a thermal stress loading under homogeneous uniform temperature distribution, the 5182 H111 alloy was restrained against axial expansion by creating an interaction boundary condition at its outside edge. In order to determine thermal strain in the analysis we have need to the thermal expansion coefficient, α [10]. Poisson's coefficient does not depend on temperature and takes the constant value, υ = 0.3.…”

Section: Methodsmentioning

confidence: 99%

Numerical simulation of damage evolution for ductile materials and mechanical properties study

Amri

Hanafi

Haddou

et al. 2015

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. This paper presents results of a numerical modelling of ductile fracture and failure of elements made of 5182H111 aluminium alloys subjected to dynamic traction. The analysis was performed using Johnson-Cook model based on ABAQUS software. The modelling difficulty related to prediction of ductile fracture mainly arises because there is a tremendous span of length scales from the structural problem to the micro-mechanics problem governing the material separation process. This study has been used the experimental results to calibrate a simple crack propagation criteria for shell elements of which one has often been used in practical analyses. The performance of the proposed model is in general good and it is believed that the presented results and experimental-numerical calibration procedure can be of use in practical finite-element simulations.

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“…4). In order to determine thermal strain in the analysis we have need to the thermal expansion coefficient α [12].Poisson's coefficient does not depend on temperature and takes the constant value 0.3 υ = . …”

Section: Finite Element Mesh and Geometrymentioning

confidence: 99%

Numerical Simulation of Thermo Mechanical Fatigue Phenomenom and Damage Evolution Bihaviour 5182 H111 Aluminium Alloy

Amri¹

2015

IJMSA

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Abstract:The paper present results of a numerical modelling of ductile fracture and failure of elements made of 5182H111 aluminum alloy subjected to dynamic traction. The analysis was performed using Johnson-Cook model based ABAQUS software. The infrared thermography was used to quantify deformation localization zones, also to relate the temperature changes of the specimen, continuously recorded by thermography, with the load extension diagram. The aim of the research was to specify and test the mechanical properties during numerical simulation. The experimental test results for the mechanical properties of the studies are presented with a large description of the testing facilities. The test results were used to determine the temperature dependencies of the mechanical properties, yield strength, modulus of elasticity and thermal elongation.

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Effect of Cycle Duration and Phasing on Thermomechanical Fatigue of Dog-Bone Specimens Made form Steel

Cited by 10 publications

References 38 publications

Finite Element Simulation of Complex Thermomechanical Fatigue Evolution

Finite Element Simulation of Complex Thermomechanical Fatigue Evolution

Numerical simulation of damage evolution for ductile materials and mechanical properties study

Numerical Simulation of Thermo Mechanical Fatigue Phenomenom and Damage Evolution Bihaviour 5182 H111 Aluminium Alloy

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