Results 191 to 200 of about 143,972 (283)

A Peridynamic Framework for Modeling Progressive Failure in Porous Sandstone Indentation

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT A state‐based peridynamic model is proposed to simulate the failure mechanisms in porous rocks, using Bentheim sandstone as a specific example. Experimental observations reveal a transition from brittle to ductile failure under increasing triaxial compression. This behavior is attributed to pore compaction. The peridynamic model is enhanced to
Sahir N. Butt, Jörg Renner, Günther Meschke   +2 more
wiley   +1 more source

Kilometer-scale convection-allowing model emulation using generative diffusion modeling. [PDF]

Sci Adv
Pathak J, Cohen Y, Garg P, Harrington P, Brenowitz N, Durran D, Mardani M, Vahdat A, Xu S, Kashinath K, Pritchard M.   +10 more
europepmc   +1 more source

Floral resource diversity drives spatiotemporal variation in plant–pollinator network structure

Oikos, EarlyView.
Mechanisms underlying community assembly, including those related to species interactions, vary across space and time. Plant–pollinator networks exemplify these dynamics, where link rewiring and turnover mediate adaptations to environmental changes. Bees rely on diverse floral resources (e.g.
Caio S. Ballarin, Felipe W. Amorim, Blanca Arroyo‐ Correa, Pedro Jordano   +3 more
wiley   +1 more source

Erratum: characterization of iGABASnFR2 for <i>in vivo</i> mesoscale imaging of intracortical GABA dynamics. [PDF]

Neurophotonics
Rezaei E, Tohidi S, Nazari M, Abadchi JK.   +3 more
europepmc   +1 more source

Poly(L‐Lactide‐Co‐ε‐Caprolactone)/glass Fiber Composites: Toward Improved Mechanical Properties of Polylactide‐Based Composites

Polymer Composites, EarlyView.
Enhanced impact strength in PLLA‐based composites via ε‐caprolactone incorporation in the matrix. ABSTRACT Inherent brittleness and limited toughness of polylactide (PLA) restrict its use in high‐performance applications. To overcome these limitations, poly(L‐lactide) (PLLA) is often blended with more ductile thermoplastics or chemically modified ...
Bernard Miranda Campos, Gaëlle Fontaine, Serge Bourbigot, Grégory Stoclet, Fanny Bonnet   +4 more
wiley   +1 more source

Chiroptical isomerization in chiral covalent organic frameworks with identical mesoscopic helicity. [PDF]

Nat Commun
Zha X, Zuo M, Luo M, Jiang Z, Lu J, Chen X, Yan Z, Zhang X, You H, Li Y, Xiong Y, Liu Y, Liu L, Li M, Wang D.   +14 more
europepmc   +1 more source

Failure Mechanisms of Short Fiber Reinforced Composite Materials Subjected to Dynamic Loading

Polymer Composites, EarlyView.
Failure Mechanisms of Short Fiber Reinforced Composite Materials Subjected to Dynamic Loading. ABSTRACT The mechanical behavior of short carbon fiber reinforced polylactic acid (SCF/PLA) composites fabricated by fused deposition modeling (FDM) is crucial for engineering applications, yet their strain‐rate dependence is not fully understood.
Hui Liu, James P. Dear, Jin Zhou, Yugang Duan, Zhongwei Guan, Wesley J. Cantwell, John P. Dear   +6 more
wiley   +1 more source

Multiscale Prediction for Mechanical and Thermal Properties of Needled Composites Considering Pore and Their Application. [PDF]

Materials (Basel)
Sun S, Wang J, Li H, Yang R, Zhou L.
europepmc   +1 more source

Investigation on Impact Behavior of Thermoplastic Composites: A Ply‐Level Numerical Methodology for Impact‐Resistance Design

Polymer Composites, EarlyView.
Experimental and numerical investigation on impact‐tolerance efficient evaluation of soft TPU composites. ABSTRACT This study combines experimental characterization and numerical modeling to investigate the impact behavior of aramid fiber–reinforced composites incorporating a thermoplastic polyurethane (TPU) matrix. Low‐velocity impact (LVI) tests were
Shunqi Zhang, Ícaro Araújo Silva, Emre Konkan, Dayou Ma, Otávio Bianchi, Sandro Campos Amico, Andrea Manes   +6 more
wiley   +1 more source