Results 41 to 50 of about 61,746 (263)
Simulated Short- and Long-Term Deformation in Coastal Karst Caves
Journal of Marine Science and Engineering, 2022 The self-balanced pressure arch theory is an important basis for excavation support in karst caves, but it is difficult to quantify the empirical theory in coastal areas.
Chunxiu Lin +4 more
doaj +1 more source
Advanced Engineering Materials, EarlyView.A simplified thermoplastic pultrusion model is developed to predict thermal fields in glass fiber/polyethylene terephthalate (GF/PET) composites with reduced computational cost. By combining effective material homogenization, validation against literature data, and Gaussian‐process‐based optimization, the study reveals how heating limits, pulling speed,
Elder Soares +3 more
wiley +1 more source
A Nonlinear Viscoelastic Model for the Yielding of Gelled Waxy Crude Oil
Energies, 2021 We explore some rheological aspects of the yielding of gelled waxy crude oil on the basis of a fractal model for the structural description of the waxy gel and Marrucci’s model for the time evolution of the stress with mixed elastic and viscous effects ...
Mengran Sun, David Jou, Zhihui Wang
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Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying
Advanced Engineering Materials, EarlyView.An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara +8 more
wiley +1 more source
Simulation of Crack Propagation in Reinforced Concrete Elements
Applied Sciences, 2021 The crack widths in reinforced concrete structures are affected by various influencing parameters, such as the tensile strength of the concrete, which is a highly variable parameter.
Jonas Cramer +2 more
doaj +1 more source
Optimization of the Production of Rubber Compounds Using Mathematical Models
Advanced Engineering Materials, EarlyView.Rubber compounds were mixed in a batch internal mixer, and symbolic regression was used to derive mathematical models linking recipe and process parameters to ram path, torque, and mixing quality (incorporation, dispersion, distribution). Subsequent optimization with evolutionary algorithms identified operating conditions that reduce specific energy ...
Anke Bardehle +7 more
wiley +1 more source
Advanced Engineering Materials, EarlyView.X‐ray computed tomography reveals how process‐induced defects evolve from green to sintered states in Fused Filament Fabrication (FFF)‐manufactured 17‐4PH stainless steel. Internal porosity, weakest cross‐sections, and fracture locations show strong correlation with tensile performance, demonstrating the potential of computed tomography (CT)‐based ...
György Ledniczky +3 more
wiley +1 more source
Sandstone Unloading Rheological Test and Model Parameters Study
, 2011 Rock rheology is common in engineering practice, which has an effect on long-term security and stability of the project. In order to understand the rheological mechanical properties under the condition of unloading sand, automatic servo apparatus of ...
Rui Hong Wang, Yu Zhou Jiang
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Two-strip rheological model for simple orthotropic viscoelastic bodies [PDF]
, 1966 summary:Two-dimensional rheological models are introduced for orthotropic and isotropic viscoelastic bodies representing their rheological behavior by the mechanical interaction of the elastic and viscous zones. The simplest of these is the presented two-
Sobotka, Zdeněk
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Robertson-Stiff rheological model in fracture flow [PDF]
, 2022 Robertson-Stiff rheological model has been recently shown to provide a more accurate description of a drilling fluid than the Herschel-Bulkley model. In this short communication, a relation between the pressure gradient and the average fluid velocity in ...
Alexandre Lavrov, Lavrov, Alexandre
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