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| Naji, M. |
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Maurel, Vincent
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Topics
Publications (34/34 displayed)
- 2024Influence of the Coating Brittleness on the Thermomechanical Fatigue Behavior of a β-NiAl Coated R125 Ni-Based Superalloy
- 2024Atomic‐Layer Controlled Transition from Inverse Rashba–Edelstein Effect to Inverse Spin Hall Effect in 2D PtSe<sub>2</sub> Probed by THz Spintronic Emissioncitations
- 2024Thermal Barrier Coatings in burner rig experiment analyzed through LAser Shock for DAmage Monitoring (LASDAM) methodcitations
- 2024Influence of the coating brittleness on the thermomechanical fatigue behavior of a $beta$-NiAl coated R125 Ni-based superalloy
- 2024In-situ localization of damage in a Zn-Al-Mg coating deposited on steel by continuous hot-dip galvanizingcitations
- 2023Driving forces in thermal barrier coatings blisteringcitations
- 2023Generation of synthetic microstructures containing casting defects: a machine learning approachcitations
- 2022Anisotropy in cyclic behavior and fatigue crack growth of IN718 processed by laser powder bed fusioncitations
- 2022Role of defects on high cycle fatigue properties of a cast nickel-based superalloy
- 2022Cross-Linking of Ru(II) Polypyridyl Complexes Bearing Pyrrole Moieties on TiO2 Nanoparticles to Enhance Light to Electricity Conversioncitations
- 2020Novel method of high-temperature digital image correlation withsimultaneous in-situ synchrotron X-ray diffraction measurements underthermomechanical conditionscitations
- 2019Tensile behavior of air plasma spray MCrAlY coatings: Role of high temperature aging and process defect
- 2019Tensile behavior of air plasma spray MCrAlY coatings: Role of high temperature aging and process defect
- 2019Development of Environmental Barrier Coatings on Ceramic Matric Composites assisted by LASAT (Laser Shock Adhesion Test)
- 2019Fatigue crack growth under large scale yielding condition in a cast automotive aluminum alloycitations
- 2018Crack growth behavior in dissimilar welded Ti based alloys under biaxial fatigue loadingcitations
- 2018Fatigue of automotive engine cylinder heads – A new model based on crack propagationcitations
- 2017Study of the interface strength and residual stresses within plasma sprayed alumina coatings involving LASAT (Laser Shock Adhesion Test)
- 20173D characterization and modeling of low cycle fatigue damage mechanisms at high temperature in a cast aluminum alloycitations
- 2016Short and long crack growth behavior of welded ferritic stainless steelcitations
- 2016In situ 3D characterization of high temperature fatigue damage mechanisms in a cast aluminum alloy using synchrotron X-ray tomographycitations
- 2016Increase in ductility of Pt-modified nickel aluminide coating with high temperature ageingcitations
- 2016Rumpling of nickel aluminide coatings : a reassessment of respective influence of thermal grown oxide and phase transformationscitations
- 2015Characterization of damage in a cast aluminum alloy during cyclic loading test at high temperature by x-ray tomography
- 2014Optimization of an absolute sensitivity in a glassy matrix during DNP-enhanced multidimensional solid-state NMR experimentscitations
- 2013Mechanical properties of a spinel-ferrite-based cermet: effects of temperature and oxidationcitations
- 2013Cohesive zone modelling of thermal barrier coatings interfacial properties based on three-dimensional observations and mechanical testingcitations
- 2013Polymers for electronics and spintronicscitations
- 2012Three-dimensional investigation of thermal barrier coatings by synchrotron-radiation computed laminographycitations
- 2011Influence of substrate strain anisotropy in TBC system failurecitations
- 2011Aluminium oxide spallation on NiAl coating induced by compressioncitations
- 2009An engineering model for low cycle fatigue life based on a partition of energy and micro-crack growthcitations
- 2008Oxide spallation in beta-NiAl coated systems under mechanical loadingcitations
- 2008Oxide and TBC spallation in β-NiAl coated systems under mechanical loadingcitations
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article
Fatigue of automotive engine cylinder heads – A new model based on crack propagation
Abstract
The main reliability issue encountered during cylinder head development is the appearance of fatigue cracks during severe endurance tests. Some of these cracks can initiate in the coolant water jacket and lead to the complete part failure. They are mainly associated with the combination of combustion pressure alternate stresses and high cycle fatigue load in infinite life domain. However, Haigh or Dang Van analysis issued from 3D Finite Element Analysis reveals several issues: crack initiations are not correctly located and scatter of crack sizes are not predicted. To overcome these difficulties, a new fatigue model dedicated to cylinder heads in Aluminum - Silicon alloy has been developed in Renault powertrain division. The model is based on fatigue crack growth modelling in order to take into account various and combined load ratio in one hand, and typical characteristics of the microstructure of casting alloy in the other hand. This paper presents the theoretical basis of this model and the associated identification methodology for two different aluminum alloys.