Is the Blade Element Momentum theory overestimating wind turbine loads? – An aeroelastic comparison between OpenFAST's AeroDyn and QBlade's Lifting-Line Free Vortex Wake method [PDF]
Wind Energy Science, 2020 Load calculations play a key role in determining the design loads of different wind turbine components. To obtain the aerodynamic loads for these calculations, the industry relies heavily on the Blade Element Momentum (BEM) theory.
S. Perez-Becker +5 more
doaj +1 more source
Modelling of the behaviour of a welded joint subjected to reverse bending moment at high temperature [PDF]
, 2007 The paper is concerned with the modeling of the behaviour of welds when subjected to severe thermal and mechanical loads where the maximum temperature during dwell periods lies in the creep range.
Chen, Haofeng, Ponter, Alan R.S.
core +1 more source
Thermal activation of rupture and slow crack growth in a model of homogenous brittle materials [PDF]
, 2003 Slow crack growth in a model of homogenous brittle elastic material is described as a thermal activation process where stress fluctuations allow to overcome a breaking threshold through a series of irreversible steps.
Diu B. +6 more
core +10 more sources
Fatigue Life Assessment in Bainitic Steels Based on The Cumulative Strain Energy Density
Applied Sciences, 2020 Carbide-free bainitic steels are an example of high-strength steels that show an excellent combination of strength, ductility, toughness and rolling fatigue contact resistance and are progressively being introduced in the production of railways ...
Rui F. Martins +2 more
doaj +1 more source
On the Influence of the Initial Shear Damage to the Cyclic Deformation and Damage Mechanism
Metals, 2022 The accuracy and precision of lifetime predictions for cyclically loaded technical components are still lacking. One of the main reasons for the discrepancy between the calculated life time and experimental results is that it is not yet possible to ...
Hermawan Agus Suhartono +2 more
doaj +1 more source
A comparison of fatigue lifetime prediction models applied to variable amplitude loading [PDF]
, 2017 The loads imposed on e.g. offshore structures can vary considerably with time. Lifetime prediction methodologies need to consider possible acceleration and retardation of the crack growth rate due to load sequences.
De Waele, Wim +2 more
core +2 more sources
Fatigue Lifetime Prediction of Laminated Composites a Review
International Journal of Recent Technology and Engineering (IJRTE), 2020 It is evident that laminated reinforced composite are successfully prolonging the life of composites compared to particle and fiber type of reinforced composites method. The question on how these laminated composites take up the fatigue loading is crucial in order to give sound confident to industry replacing their design from metal to composites based.
Aidy Ali +3 more
openaire +1 more source
Stirling engine: Available tools for long-life assessment [PDF]
A review is presented for the durability approaches applicable to long-time life assessment of Stirling engine hot-section components. The crucial elements are experimental techniques for generating long-time materials property data (both monotonic and ...
Bartolotta, Paul A., Halford, Gary R.
core +2 more sources
T2FL: An Efficient Model for Wind Turbine Fatigue Damage Prediction for the Two-Turbine Case
Energies, 2020 Wind farm load assessment is typically conducted using Computational Fluid Dynamics (CFD) or aeroelastic simulations, which need a lot of computer power. A number of applications, for example wind farm layout optimisation, turbine lifetime estimation and
Christos Galinos +3 more
doaj +1 more source
A computational approach for the fatigue design of threaded connections
, 2011 International audienceThe aim of this paper is to propose a lifetime prediction method for threaded connections. The example discussed here is a drillstring connection used in the oil and gas industry.
Averbuch, Daniel +2 more
core +4 more sources