Results 181 to 190 of about 8,268 (287)

Large Deformation Pile‐soil Interaction Under Lateral Vehicle Impact Using Hybrid SPH+FEM and EFG+FEM Models

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT This study presents large deformation computational methods to simulate lateral vehicular impacts on steel piles in granular soil. Soil‐mounted longitudinal barrier systems rely on energy dissipation in both the piles and the surrounding soil to safely redirect errant vehicles, so dynamic pile‐soil interaction is important for design ...
Tewodros Y. Yosef, Chen Fang, Seunghee Kim, Ronald K. Faller, Qusai A. Alomari, Mojtaba Atash Bahar, Gnyarienn S. Kumar   +6 more
wiley   +1 more source

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

Polymer 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, Giacomo Struzziero, Valentin Ott, Véronique Michaud   +3 more
wiley   +1 more source

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

Polymer 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, Fabrice Carassus, Christian Garnier, France Chabert, Toufik Djilali   +4 more
wiley   +1 more source

Relation of Bulk‐to‐Shear Loss Factors in Viscoelastic Auxetic Metamaterials

physica status solidi (b), EarlyView.
This article examines the dynamic behavior of isotropic auxetic viscoelastic materials, highlighting how negative Poisson's ratios affect energy dissipation, damping, and the interplay between bulk and shear moduli. By extending established viscoelastic theories to the auxetic range, it defines bound limits and underscores how dynamic Poisson's ratio ...
Simon Preston, Julián Londoño‐Monsalve, Ken E. Evans   +2 more
wiley   +1 more source

Advances in research on impulse hydro‐turbine technology

River, EarlyView.
Abstract To accelerate the development of impulse hydro‐turbines and support the efficient utilization of hydropower resources in Southwest China, this paper examines the background, historical development, and research progress of impulse hydro‐turbines.
Xiaochao Li, Ye Zhou, Hao Zhang, Guanglei Xiao, Yanwei Li, Zhongxin Gao, Zhiyang Lu, Shangqi Li   +7 more
wiley   +1 more source

An Invariant-Based Constitutive Model for Composite Laminates. [PDF]

Materials (Basel)
Liu W, Fan S, Mu X, Ma R, Wang X.
europepmc   +1 more source

Strategy for One‐Step Optimization of Metal Oxide Passivating Contact Materials for Si Heterojunction Solar Cells through Growth Angle Variation

Small, EarlyView.
A one‐step oblique angle reactive sputtering approach enables simultaneous tuning of bulk and interfacial stoichiometry in a metal oxide/ silicon heterojunction. In case of vanadium oxides, growth angle variation controls the formation of stoichiometric SiO2, ternary SiOx(V) interlayer, and phase purity of vanadium oxide, considerably simplifying the ...
Aparajita Mandal, Alexis Franquet, Hans Hofsäss, Tapobrata Som   +3 more
wiley   +1 more source

Design, Modeling, and Testing-A Compact Variable-Stiffness Actuator for Knee Joint Dimensions. [PDF]

Micromachines (Basel)
Si G, Guo Z, Zhang Z.
europepmc   +1 more source

Modular and Vertically Integrated Microsupercapacitor Arrays Based on Laser‐Induced Graphene and Bimetallic Oxide Interfaces on Liquid Crystal Polymer Substrate

Small Structures, EarlyView.
Modular and flexible MSCs are fabricated through a fully integrated, laser‐assisted process that enables in‐situ synthesis of bimetallic nanodomains on LIG patterned LCP substrates. The multilayered architecture, formed via laser‐drilled vertical interconnects, supports compact energy modules with robust electrochemical performance, ensuring consistent
Jae Won Lee, Sangheon Jeon, Young Woo Kwon, Sung Hyun Kim, Suck Won Hong   +4 more
wiley   +1 more source

Force balanced chip scale gravimeter achieving record low self noise of 0.1 μGal/√Hz. [PDF]

Microsyst Nanoeng
Gao L, Wu W, Li F, Cai B, Xie R, Zhang Z, Yang L, Zhang J, Peng M, Wang Y, Mak PI, Li H, Tu L.   +12 more
europepmc   +1 more source