Results 91 to 100 of about 26,802 (305)

Flexural behavior of FRP strengthened concrete-wood composite beams

open access: yesAin Shams Engineering Journal, 2018
An experimental investigation was conducted to study the structural performance of concrete-timber composite beams provided with systems of semi-rigid connectors of various configurations and stiffness.
Yehia A. Zaher Ali
doaj   +1 more source

Recent research and development in semi-rigid composite joints with precast hollowcore slabs [PDF]

open access: yes, 2008
Composite structure incorporating steel beams and precast hollowcore slabs is a recently developed composite floor system for building structures. This form of composite construction is so far limited to simple beam-column connections.
Lam, D.
core  

Digital Actuation Control of Soft Robotic Origami With Self‐Folding Liquid Crystal Elastomer Hinges

open access: yesAdvanced Functional Materials, EarlyView.
Self‐folding soft‐rigid hybrid robotic origami is enabled by liquid crystal elastomer actuators with embedded Joule heating and closed‐loop digital control. Digitally addressable hinges provide reversible and programmable transitions between distinct folded states while maintaining actuation performance at high cycle counts (over 1500).
David C. Bershadsky   +3 more
wiley   +1 more source

Improving Loss Estimation for Woodframe Buildings. Volume 2: Appendices [PDF]

open access: yes, 2002
This report documents Tasks 4.1 and 4.5 of the CUREE-Caltech Woodframe Project. It presents a theoretical and empirical methodology for creating probabilistic relationships between seismic shaking severity and physical damage and loss for buildings in ...
Beck, James L.   +6 more
core  

Meta‐Rod Mechanical Metamaterials With Programmable Reconfiguration

open access: yesAdvanced Functional Materials, EarlyView.
Existing mechanical metamaterials achieve programmable large deformations in planar square or cubic configurations, restricted by required complex boundary conditions. This research proposes a 1D metamaterial, Meta‐rod, with linear, bending, twisting, area, and volume deformation modes.
Atharva Pande, Lyes Kadem, Hang Xu
wiley   +1 more source

Modelling self-piercing riveted joint failures in automotive crash structures [PDF]

open access: yes, 2008
This paper describes a new model and method to predict Self-Piercing Riveted (SPR) joint interlock failures in aluminium sheet at crash speeds using explicit finite element simulation.
Buckley, M.A.   +4 more
core  

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

open access: yesAdvanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou   +3 more
wiley   +1 more source

Deployable M-braced truss structure [PDF]

open access: yes, 1986
A deployable M-braced truss structure, efficiently packaged into a compact stowed position and expandable to an operative position at the use site is described.
Mikulas, M. M., Jr., Rhodes, M. D.
core   +1 more source

Simulation Studies of Gas-Solid in the Riser of a Circulating Fluidized Bed [PDF]

open access: yes, 2005
A numerical parametric study was performed on the influence of various riser exit geometries on the hydrodynamics of gas-solid two-phase flow in the riser of a Circulating Fluidized Bed (CFB).
Ani, Farid Nasir   +4 more
core   +1 more source

3D‐Printed Porous Hydroxyapatite Formed via Enzymatic Mineralization

open access: yesAdvanced Functional Materials, EarlyView.
Bone combines lightness, strength, and the ability to heal, inspiring new materials design. This work introduces a room‐temperature, enzyme‐mediated 3D printing method to create porous hydroxyapatite scaffolds. The process avoids energy‐intensive sintering, preserves bioactivity, and allows control over porosity and mineralization.
Francesca Bono   +6 more
wiley   +1 more source

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