Results 121 to 130 of about 6,901 (259)

Lateral Drop-Weight Impact Response of SRC Columns with Built-In L-Shaped Steel: Role of Impact Velocity, Axial Compression Ratio, and Stirrup Spacing. [PDF]

Materials (Basel)
Tang Y, Yang L, Feng Y, Zhang N, Li J, Zeng L.   +5 more
europepmc   +1 more source

Water Droplet Hammer: Piezoelectric Sensing of Ultrafast Mechanical Transients During Droplet Impact

Small, EarlyView.
Droplet impact on solid surfaces produces an ultrafast substrate‐coupled mechanical response that is resolved by PVDF piezoelectric sensing. An initial impulsive strain pulse is followed by interfacial oscillations before rebound. Weber‐number and timescale analyses reveal how droplet inertia, surface wettability, impact regime, and liquid viscosity ...
Ian Kim, Chen Lin, Zuer Wu, Siyuan Rao, Qianbin Wang   +4 more
wiley   +1 more source

Mesoscopic Damage Characteristics of NEPE Propellant Under Drop-Weight Impact. [PDF]

Materials (Basel)
Zhang Z, Sun Z, Liu Y, Zhu Y, Hu Y.
europepmc   +1 more source

A Comparative Study of Directed Energy Deposition‐Arc and Casting: Enhancing Mechanical and Thermal Properties of Hot‐Work Tool Steels

steel research international, EarlyView.
The study investigates the influence of DED‐Arc/M versus casting on the microstructure and material properties of X40CrMoV5‐1 (AISI H13) hot‐work tool steel. DED‐Arc/M yields finer microstructures, superior mechanical strength, and ductility, but slightly reduced thermal conductivity.
Ulf Ziesing, Aaron Berger, Hendric Schaefer, Sebastian Weber, Jonathan Lentz   +4 more
wiley   +1 more source

Assessing building damage during station break-out in urban railway construction: real monitoring data. [PDF]

Sci Rep
Alajlan ZS, Abdelmageed A, Suliman L, Rabie M, Mahmoud H.   +4 more
europepmc   +1 more source

Alloy Qualification for Producing Quench and Tempered Plate Steels with Extra‐Heavy Gage

steel research international, EarlyView.
This study develops alloy concepts for ultraheavy steel plates (>100 mm) with ≥690 MPa yield strength. Through dilatometry and Jominy testing, the effects of Mo, Ni, and B on hardenability are quantified. A synergy between 0.5% Mo and 0.5%–1.0% Ni ensures core strength at low cooling rates, while boron microalloying suppresses ferrite and promotes ...
Xabier Azpeitia, Unai Mayo, Nerea Isasti, Eric Detemple, Hardy Mohrbacher, Pello Uranga   +5 more
wiley   +1 more source

Principles and Practical Steps of Simplifying the Construction of the Cushion Curves of Closed-Cell Foam Materials. [PDF]

Polymers (Basel)
Sun D, Qiu P, Chen H, Zhang X, Wang S.
europepmc   +1 more source

HWTS 50 Tool Steel Tailored for Laser Powder Bed Fusion: Sliding Wear of Bare Surfaces and Nitriding Response in Comparison with 18Ni300 and AISI H13

steel research international, EarlyView.
This work investigates the wear resistance and nitriding behavior of PBF‐LB/M‐processed Osprey HWTS 50, a lean hot work tool steel. Three heat treatment conditions are compared to conventional wrought H13, H11, and PBF‐LB/M 18Ni300. The study highlights HWTS 50's enhanced nitrogen diffusion, deeper nitriding hardness depth, and comparable or improved ...
Jonathan Hann, Giorgia Lupi, Sylvain Dossin, Riccardo Casati, Mandanà Moshiri, Arne Röttger, Faraz Deirmina   +6 more
wiley   +1 more source

Preterm Infant Stress During Noncontact Handheld Optical Coherence Tomography and Contact Fundus Photography. [PDF]

JAMA Ophthalmol
Li AS, Sarin N, He J, Tran-Viet D, Imperio R, Ying GS, Cotten CM, Prakalapakorn SG, Freedman SF, Chen X, Toth CA, BabySTEPS Group.   +11 more
europepmc   +1 more source

Bath Vibration During Open Eye Formation in a Physical Model of a Steelmaking Ladle

steel research international, EarlyView.
Using a physical model, this study shows that vibration measurements reliably predict open eye size in steelmaking ladles, offering a practical alternative to visual monitoring. Vessel vibrations stabilize faster than the open eye, except at high frequencies near the bottom.
Mika Pylvänäinen, Juhani Nissilä, Ville‐Valtteri Visuri, Aki Sorsa, Matias Hauru, Jouni Laurila, Toni Liedes   +6 more
wiley   +1 more source