Results 101 to 110 of about 73,733 (293)
Characterisation of crack tip fields—CCTF5 [PDF]
Fatigue & Fracture of Engineering Materials & Structures, 2020 Michael Vormwald +4 more
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Advanced Functional Materials, EarlyView.A hydrogel with dynamic cross‐links was formed by cross‐linking hyaluronic acid with curcumin‐preloaded, phenylboronic acid‐modified poly(amidoamine) dendrimers. This hydrogel exhibited excellent injectability and self‐healing ability, enabling controlled Cur release in response to low pH, high reactive oxygen species (ROS) generation, or mechanical ...
Junjie Liu +9 more
wiley +1 more source
The effects of crack surface friction and roughness on crack tip stress fields [PDF]
A model is presented which can be used to incorporate the effects of friction and tortuosity along crack surfaces through a constitutive law applied to the interface between opposing crack surfaces.
Ballarini, Roberto, Plesha, Michael E.
core +1 more source
Kinetic Regimes of Hydrogen Absorption in Thin Films
Advanced Functional Materials, EarlyView.Knowledge of the hydrogen incorporation mechanisms in thin layers in relation to the amount absorbed is essential to design coatings and devices compatible with hydrogen‐based technologies. A combination of simultaneous in situ methods gives detailed insight into the hydrogenation of a prototypical hydrogen absorber layer in a time‐dependent manner ...
Laura Guasco +7 more
wiley +1 more source
Oscillatory Singularity Behaviors Near Interface Crack Tip for Mode II of Orthotropic Bimaterial
Journal of Applied Mathematics, 2013 The fracture behaviors near the interface crack tip for mode II of orthotropic bimaterial are discussed. The oscillatory singularity fields are researched.
Xiaomei Yang +3 more
doaj +1 more source
Quantitative Interpretation of Crack Tip Strain Field Measurements
, 2008 Recent years have witnessed greatly improved availability of experimental measurements of two-and three-dimensional strain and stress distributions, notably through the development of diffraction techniques utilising penetrating radiation, such as high energy X-ray or neutrons (Korsunsky and James, [1]). These methods now provide unprecedented level of
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The characterization of a crack-tip field
Engineering Fracture Mechanics, 1991 The stress intensity factor, K, has been successfully used as a measure of fracture toughness, and stress intensity factor range, Delta K, correlates well with the fatigue crack growth rate. This paper gives a deductive logic to demonstrate rigorously that, in the case of small-scale yielding, K and Delta K are capable of characterizing the elastic ...
H.W. Liu, Chen Qi, Sanjiv K. Sinha
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Structural and Chemical Engineering of Sub‐Nanochannel Membranes Toward Ion Selectivity
Advanced Functional Materials, EarlyView.This review summarizes recent advances in structural and chemical engineering of sub‐nanochannels for ion selectivity. We first introduce fundamental ion transport mechanisms within sub‐nanochannels, followed by strategies to tune pore size, geometry, and surface functionalities, categorized into charge‐based, ion‐recognition, hydrophilic bonding, and ...
Yuyu Su +5 more
wiley +1 more source
, 2003 The problem of finding what direction cracks should move is not completely solved. A commonly accepted way to predict crack directions is by computing the density of elastic potential energy stored well away from the crack tip, and finding a direction of
Broberg K. B. +6 more
core +2 more sources
Advanced Functional Materials, EarlyView.Flexible piezoresistive pressure sensors underpin wearable and soft electronics. This review links sensing physics, including contact resistance modulation, quantum tunneling and percolation, to unified materials/structure design. We highlight composite and graded architectures, interfacial/porous engineering, and microstructured 3D conductive networks
Feng Luo +2 more
wiley +1 more source