Results 51 to 60 of about 42,214 (237)

AIR-COUPLED ULTRASONIC EVALUATION TECHNOLOGY FOR VISCOELASTIC PROPERTY OF MATERIALS

open access: yesJixie qiangdu, 2018
In view of the deficiencies of the main evaluation methods of viscoelasticity,the air-coupled ultrasonic evaluation technology was introduced with the characteristics of non-contact and nondestructive.
LIN DanYi, ZHU LiJun, ZHANG YiHua
doaj  

Freeform Manufacturing of Plant‐Based Structural Colors for Scalable Photonic and Mechanochromic Devices

open access: yesAdvanced Materials, EarlyView.
A green, freeform manufacturing approach that utilizes robust aqueous two‐phase systems to create intricate and scalable photonic structures and non‐planar mechanochromic hydrogel actuators from plant‐based hydroxypropyl cellulose. This approach broadens the structural possibilities of sustainable photonic devices and mechanochromic systems, offering ...
Xiao Song   +14 more
wiley   +1 more source

Application of continuum laws in discontinuity analysis based on a regularised displacement jump [PDF]

open access: yes, 1999
The application of continuum constitutive laws in embedded strong discontinuity analysis is examined. By adopting a regularised discontinuity (approximating the unbounded strain field resulting from a displacement jump with a bounded function), the ...
Sluys, LJ, Wells, GN
core  

Stable Protein‐Based G‐Quadruplex‐Derived Supramolecular Bioinks as Tunable ECM‐Mimetic Constructs Assembled by Combining Non‐Covalent and Covalent Strategies

open access: yesAdvanced Materials, EarlyView.
Harnessing the synergistic interplay of supramolecular self‐assembly, under macromolecular crowding conditions, and enzymatic‐mediated covalent crosslinking toward a stable protein‐based G‐quadruplex‐derived supramolecular bioink. This bioinspired strategy enables the biofabrication of complex and tunable ECM‐mimetic constructs, providing a platform ...
Vera Sousa   +6 more
wiley   +1 more source

New Variable Compliance Method for Estimating In-Situ Stress and Leak-Off from DFIT Data

open access: yes, 2017
It is shown that using Carter leak-off is an oversimplification that leads to significant errors in the interpretation of DFIT data. Most importantly, this article reveals that previous methods of estimating minimum in-situ stress often lead to ...
Sharma, Mukul M., Wang, HanYi
core   +1 more source

4D‐Printed Spin Crossover Metamaterials with Giant Programmable Positive or Negative Thermal Expansion

open access: yesAdvanced Materials, EarlyView.
Spin crossover composite filaments are implemented for the rational design of 4D‐printed mechanical metamaterials. The obtained bi‐material structures guided by a theoretical analysis based on analytical calculations and Finite Element Analysis simulations exhibit giant programmable positive or negative deformation with coefficients of thermal ...
Adelais Trapali   +7 more
wiley   +1 more source

Return mapping algorithm and numerical implementation based on dual-yield surface elastoplastic model

open access: yesYantu gongcheng xuebao
Numerical integration algorithm for the dual-yield surface constitutive model is crucial for accurately calculating the stress and deformation of soils.
SAI DONG LA· Maxueyi 1, CUI Wei 1, 2, ZHANG Yu 3, WANG Cao 3
doaj   +1 more source

Multi-scale strain-stiffening of semiflexible bundle networks [PDF]

open access: yes, 2015
Bundles of polymer filaments are responsible for the rich and unique mechanical behaviors of many biomaterials, including cells and extracellular matrices.
Broedersz, C. P.   +5 more
core   +2 more sources

Plasmonic Nanomachines: Creating Local Potential Gradients and Motions

open access: yesAdvanced Materials, EarlyView.
Plasmonic nanomachines can generate optical, thermal, and chemical potential gradients to drive directional rectilinear, rotational, and twisting motions at the nanometer scale. The integration of multimodal plasmonic forces with functional materials and programmed structural distortions enables precise spatiotemporal actuation, thereby providing a ...
Yoonhee Kim   +3 more
wiley   +1 more source

Behaviour of short and long columns made from bamboo scrimber subjected to uniaxial compression

open access: yesAdvances in Bamboo Science
Engineered bamboo has been getting recognition as a forerunner in terms of desirable mechanical properties and a sustainable construction material. One of the most widespread variants is bamboo scrimber, also known as Parallel Bamboo Strand Lumber (PBSL).
Janeshka Goonewardena   +4 more
doaj   +1 more source

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