Results 221 to 230 of about 7,565,424 (340)

Study on the Shape Memory Performance of 4D‐Printed Auxetic Cellular Structures with Energy Absorption Application

open access: yesMacromolecular Materials and Engineering, EarlyView.
4D‐printed auxetic cellular structures made from PETG demonstrate almost complete recovery of shape and mechanical properties after repeated loading. Two strategies successfully addressed the low shape‐fixity issue, the primary limitation of cold programming.
Mehdi Shadman   +3 more
wiley   +1 more source

Chewable Soft Gelatin Capsules: Design and Formulation Strategies for a Patient‐Preferred Dosage Alternative

open access: yesMacromolecular Materials and Engineering, EarlyView.
Chewable softgels are a patient‐preferred alternative to conventional oral forms, offering pleasant taste, fast onset, and suitability for children or patients with swallowing difficulties. However, they present relevant challenges in their formulation: the shell must balance chewability, machinability, and stability, while the fill must mask the ...
Almudena Naharros‐Molinero   +3 more
wiley   +1 more source

Experimental Evaluation of Turning AISI 304 Using Minimum Quantity Lubrication With Vegetable‐Based Green Cutting Fluids

open access: yesMetalMat, EarlyView.
This study experimentally evaluates the performance of eco‐friendly vegetable‐based cutting fluids—coconut, sunflower, and palm oils—during turning of AISI 304 stainless steel under minimum quantity lubrication. Palm oil exhibited superior lubrication and cooling characteristics, yielding the lowest cutting force, temperature, and surface roughness ...
Ranjith Ravindran Nair   +3 more
wiley   +1 more source

Effect of Variations in the Ring Thickness on the Dynamic Performance of the Bimetal Gears

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT This study used a six‐degrees‐of‐freedom dynamic model to analyze the dynamic response of bimetal spur gears. Aluminum alloy forms the core of the bimetal gears, and a uniform‐thickness steel ring surrounds the teeth. Gear mesh stiffness of bimetal gears and the transmission error have been assessed using a numerical approach based on finite ...
Bikramjit Singh   +2 more
wiley   +1 more source

Characterization of Fuel Rods Supported by Dimple‐Less Spacer Grids and Subjected to Nonlinear Vibrations

open access: yesInternational Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT An experimental campaign was undertaken to demonstrate the applicability of the Bouc–Wen hysteretic model to describe the hysteretic system of the recent Framatome dimple‐less spacer grid design for Pressurized Water Reactors. The experimental setup subjected a reduced‐length fuel rod, supported at both ends by dimple‐less grids, to forced ...
Giovanni Ferrari   +3 more
wiley   +1 more source

Strain Development During Cure of Partially Pre‐Cured Thermosetting Composites Measured With Distributed Fiber Optic Sensors

open access: yesPolymer Composites, EarlyView.
Schematic representation of the beneficial effect of ply pre‐curing on temperature overshoot, internal strain and warpage during cure of thin and thick thermosetting composites. ABSTRACT Detection of manufacturing‐induced defects in thermosetting composites is crucial to guarantee part quality, safety, and improve manufacturing efficiency.
Francesco Taddei   +3 more
wiley   +1 more source

Effect of Consolidation Time in Hot Press Compression Molding of Continuous Carbon Fiber‐Reinforced Polyetheretherketone Composite

open access: yesPolymer Composites, EarlyView.
Influence of consolidation time on interlaminar shear strength and void content after hot press consolidation and vacuum bag only processes. ABSTRACT Processing long fiber reinforced thermoplastic composites such as polyaryletherketones with carbon fibers (CF/PEEK) has found interest in the aerospace industry due to short‐time manufacturing and ...
Adrian Korycki   +4 more
wiley   +1 more source

Wire arc directed energy deposition of AZ61 magnesium alloy fabricated using cold metal transfer. [PDF]

open access: yesSci Rep
Slavíček J   +5 more
europepmc   +1 more source

Recyclability of Polystyrene Bead Foams: Degradation Behavior over 10 Extrusion Cycles

open access: yesPolymer Engineering &Science, EarlyView.
This study investigates the multi‐cycle recycling of expanded polystyrene bead foam blended with virgin material. Material degradation is monitored by MFI, GPC, and mechanical testing. The results demonstrate that long‐term recyclability is feasible without progressive property loss, and that secondary high‐shear steps such as extrusion and pelletizing
Christian Töpfer   +2 more
wiley   +1 more source

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