Results 101 to 110 of about 8,957,031 (293)

High‐Performance Bio‐Based Epoxy Vitrimers and Composites: Synergizing Robustness and Reprocessability via Fractional Free Volume Regulation

open access: yesAdvanced Science, EarlyView.
In this work, two bio‐based epoxy monomers were designed to tune the dynamic network of a rigid–flexible hybrid epoxy through free‐volume control, achieving a synergy among high free volume, high cross‐linking density, and segmental mobility while balancing strength and toughness.
Kai Dong, Di Zhao, Chengji Zhao
wiley   +1 more source

Flexural Behavior of New Demountable Steel–Concrete Composite Beam with Novel Demountable Connectors

open access: yesBuildings
This study proposes a novel type of demountable steel–concrete composite beam (the slab is connected to the steel beam by T-shaped shear connectors, TCBs) to address the limitations of traditional composite beams, including difficulties in disassembly ...
Jicheng Liu   +4 more
doaj   +1 more source

Flexural–torsional behavior of thin-walled composite space frames [PDF]

open access: yes, 2009
A general analytical model based on the first-order shear deformable beam theory applicable to thin-walled composite space frames with arbitrary lay-ups under external loads is presented.
Lee, Jaehong, Vo, Thuc
core   +1 more source

Beyond‐Classical Ferroelectric Metamaterials: 3D‐Printed Planar Lattices With Programmable Electro–Thermo–Mechanical Coupling

open access: yesAdvanced Science, EarlyView.
Planar ferroelectric lattices with rationally‐tailored topology and polarization achieve programmable piezoelectric and pyroelectric properties. Analytical modeling, homogenization, and experiments collectively demonstrate enhanced and tunable longitudinal, transverse, and shear piezoelectric responses, together with substantially improved ...
Jiahao Shi   +6 more
wiley   +1 more source

Evaluation of the performance of reinforced concrete beams with 3D-printed permanent formwork

open access: yesJournal of Intelligent Construction
Understanding the advantages of combining traditional construction methods and 3D concrete printing is the gateway to the general structural applicability of three-dimensional concrete printing (3DCP) technology. To further this objective, in this study,
Jingyuan Guan   +4 more
doaj   +1 more source

Habitat‐Specific Design Strategies for Untethered Soft Robots

open access: yesAdvanced Science, EarlyView.
Habitat shapes the design of untethered soft robots. Across land, water, air, and living tissues, environmental constraints govern viable combinations of compliant structures, actuation mechanisms, and energy delivery. This review connects these constraints with robotic performance and identifies design principles for advancing adaptable, durable, and ...
Siyang Li   +3 more
wiley   +1 more source

Determinação da resistência flexural de cimentos resinosos comerciais, com variação do sistema de ativação e tempo de armazenamento pós-ativação [PDF]

open access: yes, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde. Programa de Pós-Graduação em Odontologia.Este estudo investigou a resistência flexural de amostras confeccionadas com os cimentos resinosos duais Enforce, RelyX
Ferreira, Ana Paula Ribeiro Bonilauri
core  

Multiscale Interfacial Engineering Enables Robust Reconstituted Wood

open access: yesAdvanced Science, EarlyView.
Conventional adhesives used in wood composites create heterogeneous interfaces that cause stress concentration under humid or aqueous conditions, thereby compromising long‐term stability. A synergistic strategy integrating interfacial reconstruction and water‐induced regeneration transforms heterogeneous interfaces into homogeneous ones with ...
Huizheng Wu   +11 more
wiley   +1 more source

Experimental and analytical investigations on flexural performance of corroded RC beams using RBSM-based corrosion model

open access: yesTạp chí Khoa học và Công nghệ
Residual strength and structural performance of reinforced concrete (RC) structures subjected to rebar corrosion need to be precisely evaluated for an efficient rehabilitation process.
Nguyen Cong Luyen   +2 more
doaj   +1 more source

Co‐Design Insights for Mechanically Active Flexible Printed Circuit Boards Through the CurveQuad Origami Robot

open access: yesAdvanced Science, EarlyView.
This paper presents the process of integrating electronics directly into the body sheet of CurveQuad, a small origami robot that can self‐fold, crawl, and steer with a single actuator. The authors design a flexible printed circuit board for the body sheet: the key challenge is to navigate how embedding electronics affects the mechanical properties and ...
Xuelin Wu   +6 more
wiley   +1 more source

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