Abstract:
:Material deformation and pitting from cavitation bubble collapse is investigated using fluid and material dynamics and their interaction. In the fluid, a novel hybrid approach, which links a boundary element method and a compressible finite difference method, is used to capture non-spherical bubble dynamics and resulting liquid pressures efficiently and accurately. The bubble dynamics is intimately coupled with a finite-element structure model to enable fluid/structure interaction simulations. Bubble collapse loads the material with high impulsive pressures, which result from shock waves and bubble re-entrant jet direct impact on the material surface. The shock wave loading can be from the re-entrant jet impact on the opposite side of the bubble, the fast primary collapse of the bubble, and/or the collapse of the remaining bubble ring. This produces high stress waves, which propagate inside the material, cause deformation, and eventually failure. A permanent deformation or pit is formed when the local equivalent stresses exceed the material yield stress. The pressure loading depends on bubble dynamics parameters such as the size of the bubble at its maximum volume, the bubble standoff distance from the material wall and the pressure driving the bubble collapse. The effects of standoff and material type on the pressure loading and resulting pit formation are highlighted and the effects of bubble interaction on pressure loading and material deformation are preliminarily discussed.
journal_name
Interface Focusjournal_title
Interface focusauthors
Chahine GL,Hsiao CTdoi
10.1098/rsfs.2015.0016subject
Has Abstractpub_date
2015-10-06 00:00:00pages
20150016issue
5eissn
2042-8898issn
2042-8901pii
rsfs20150016journal_volume
5pub_type
杂志文章相关文献
Interface Focus文献大全abstract::As a novel class of biomaterials, nucleopeptides, via the conjugation of nucleobases and peptides, usually self-assemble to form nanofibres driven mainly by hydrogen bonds. Containing nucleobase(s), nucleopeptides have a unique property-interacting with nucleic acids. Here we report the design and characterization of ...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2016.0116
更新日期:2017-12-06 00:00:00
abstract::A tumour is a heterogeneous population of cells that competes for limited resources. In the clinic, we typically probe the tumour by biopsy, and then characterize it by the dominant genetic clone. But genotypes are only the first link in the chain of hierarchical events that leads to a specific cell phenotype. The rel...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2013.0016
更新日期:2013-08-06 00:00:00
abstract::A numerical model for orthogonal cutting using the material point method was applied to woodcutting using a bench plane. The cutting process was modelled by accounting for surface energy associated with wood fracture toughness for crack growth parallel to the grain. By using damping to deal with dynamic crack propagat...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2015.0110
更新日期:2016-06-06 00:00:00
abstract::Nanoparticles do not exist in thermodynamical equilibrium because of high surface free energy, thus they have only kinetic stability. Spontaneous changes can be delayed by designed surface coating. In biomedical applications, superparamagnetic iron oxide nanoparticles (SPIONs) require an optimized coating in order to ...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2016.0068
更新日期:2016-12-06 00:00:00
abstract::Books with titles like 'The Call of the Wild' seemed to set a path for a life. Thus, I would be an explorer-a plan that did not work out so well, at least at first. On leaving school I got a job as a 'Works Chemist Improver', testing Ni catalysts for the hydrogenation of phenol to cyclohexanol. Taking night classes I ...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2019.0050
更新日期:2019-12-06 00:00:00
abstract::Yves Bouligand's analysis of the organizations of biological materials in relation to those of liquid crystals enabled the development of the idea that physical forces exerting their actions under strong spatial constraints determine the structures and morphologies of these materials. The different levels of organizat...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2012.0014
更新日期:2012-10-06 00:00:00
abstract::We present the development of a tool, which provides users with the ability to visualize and interact with a comprehensive description of a multi-scale model of the renal nephron. A one-dimensional anatomical model of the nephron has been created and is used for visualization and modelling of tubule transport in vario...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2010.0032
更新日期:2011-06-06 00:00:00
abstract::Pentameric ligand-gated ion channels (pLGICs) are an important class of widely expressed membrane neuroreceptors, which play a crucial role in fast synaptic communications and are involved in several neurological conditions. They are activated by the binding of neurotransmitters, which trigger the transmission of an e...
journal_title:Interface focus
pub_type: 杂志文章,评审
doi:10.1098/rsfs.2018.0067
更新日期:2019-06-06 00:00:00
abstract::Ultrasound elastography is a technique used for clinical imaging of tissue stiffness with a conventional ultrasound machine. It was first proposed two decades ago, but active research continues in this area to the present day. Numerous clinical applications have been investigated, mostly related to cancer imaging, and...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2011.0011
更新日期:2011-08-06 00:00:00
abstract::Visual memory is crucial to navigation in many animals, including insects. Here, we focus on the problem of visual homing, that is, using comparison of the view at a current location with a view stored at the home location to control movement towards home by a novel shortcut. Insects show several visual specialization...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2018.0010
更新日期:2018-08-06 00:00:00
abstract::Clinicians face many challenges when diagnosing and treating breast cancer. These challenges include interpreting and co-locating information between different medical imaging modalities that are used to identify tumours and predicting where these tumours move to during different treatment procedures. We have develope...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2019.0034
更新日期:2019-08-06 00:00:00
abstract::Recent advances in design, sensing and control have led to aerial robots that offer great promise in a range of real-world applications. However, one critical open question centres on how to improve the energetic efficiency of aerial robots so that they can be useful in practical situations. This review paper provides...
journal_title:Interface focus
pub_type: 杂志文章,评审
doi:10.1098/rsfs.2016.0088
更新日期:2017-02-06 00:00:00
abstract::Silica carriers equipped with molecular and supramolecular pH-sensitive nanovalves were designed by combination of sol-gel synthesis and selective postsynthetic modification. Mesoporous structure of synthesized materials was characterized by low-temperature nitrogen adsorption-desorption, small-angle X-ray diffraction...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2016.0041
更新日期:2016-12-06 00:00:00
abstract::Organisms modify and choose components of their local environments. This 'niche construction' can alter ecological processes, modify natural selection and contribute to inheritance through ecological legacies. Here, we propose that niche construction initiates and modifies the selection directly affecting the construc...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2016.0147
更新日期:2017-10-06 00:00:00
abstract::A novel class of ultra-thin fibres, which affect microbial growth, were explored. The microbial properties of poly(methyl methacrylate) fibres containing 2, 4 and 8 wt% of graphene nanoplatelets (GNPs) were studied. GNPs were dispersed in a polymeric solution and processed using pressurized gyration. Electron microsco...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2017.0058
更新日期:2018-06-06 00:00:00
abstract::Dynamic remodelling of actin stress fibres (SFs) allows non-muscle cells to adapt to applied forces such as uniaxial cell shortening. However, the mechanism underlying rapid and selective disassembly of SFs oriented in the direction of shortening remains to be elucidated. Here, we investigated how myosin crossbridge c...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2011.0031
更新日期:2011-10-06 00:00:00
abstract::The scattering strength of a random medium relies on the geometry and spatial distribution of its components as well as on their refractive index. Anisotropy can, therefore, play a major role in the optimization of the scattering efficiency in both biological and synthetic materials. In this study, we show that, by ex...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2018.0050
更新日期:2019-02-06 00:00:00
abstract::In recent years, there has been a move away from the use of static in vitro two-dimensional cell culture models for testing the chemical safety and efficacy of drugs. Such models are increasingly being replaced by more physiologically relevant cell culture systems featuring dynamic flow and/or three-dimensional struct...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2019.0045
更新日期:2020-04-06 00:00:00
abstract::Most ecological interactions occur in environments that are spatially and temporally heterogeneous-'patchy'-across a wide range of scales. In contrast, most theoretical models of ecological interactions, especially large-scale models applied to societal issues such as climate change, resource management and human heal...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2011.0084
更新日期:2012-04-06 00:00:00
abstract::Chemoattractant gradients are usually considered in terms of sources and sinks that are independent of the chemotactic cell. However, recent interest has focused on 'self-generated' gradients, in which cell populations create their own local gradients as they move. Here, we consider the interplay between chemoattracta...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2016.0036
更新日期:2016-10-06 00:00:00
abstract::Despite there being many studies that have evaluated breast implant rupture, there is no consensus about causes and incidence. Most studies lack a multifactorial analysis of what causes breast implants to rupture. To fill this gap, an experimental protocol was developed to compare ruptured and intact Poly Implant Prot...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2018.0086
更新日期:2019-08-06 00:00:00
abstract::The paper reviews two computing models by DNA self-assembly whose proof of principal have recently been experimentally confirmed. The first model incorporates DNA nano-devices and triple crossover DNA molecules to algorithmically arrange non-DNA species. This is achieved by simulating a finite-state automaton with out...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2011.0117
更新日期:2012-08-06 00:00:00
abstract::Biofuels production from microalgae attracts much attention but remains an unproven technology. We explore routes to enhance production through modifications to a range of generic microalgal physiological characteristics. Our analysis shows that biofuels production may be enhanced ca fivefold through genetic modificat...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2012.0037
更新日期:2013-02-06 00:00:00
abstract::Biological variety and major evolutionary transitions suggest that the space of possible morphologies may have varied among lineages and through time. However, most models of phylogenetic character evolution assume that the potential state space is finite. Here, I explore what the morphological state space might be li...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2015.0049
更新日期:2015-12-06 00:00:00
abstract::Periodontitis is a polymicrobial, biofilm-caused, inflammatory disease affecting the tooth-supporting tissues. It is not only the leading cause of tooth loss worldwide, but can also impact systemic health. The development of effective treatment strategies is hampered by the complicated disease pathogenesis which is be...
journal_title:Interface focus
pub_type: 杂志文章,评审
doi:10.1098/rsfs.2018.0064
更新日期:2019-04-06 00:00:00
abstract::A computational model of the outer hair cell (OHC) of the mammalian cochlea is presented. It addresses the way in which movement of ions controls the cell shape and regulates pH. The model takes into account the possible chloride-bicarbonate exchange function of prestin, a protein highly expressed in the plasma membra...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2014.0018
更新日期:2014-12-06 00:00:00
abstract::We investigate, by molecular dynamics simulation, the behaviour of discotic particles in a solvent of Lennard-Jones spheres. When chromonic disc-sphere interactions are imposed on these systems, three regimes of self-assembly are observed. At moderate temperatures, numerous short threads of discs develop, but these th...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2011.0104
更新日期:2012-10-06 00:00:00
abstract::Pancreatic β-cells use Ca(2+)-dependent exocytosis of large dense core vesicles to release insulin. Exocytosis in β-cells has been studied biochemically, biophysically and optically. We have previously developed a biophysical method to monitor release of endogenous intragranular constituents that are co-released with ...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2010.0006
更新日期:2011-02-06 00:00:00
abstract::Moving from homogeneous water-splitting photocatalytic systems to photoelectrochemical devices requires the preparation and evaluation of novel p-type transparent conductive photoelectrode substrates. We report here on the sensitization of polystyrene-block-poly-(2-vinylpyridine) (PS-b-P2VP) diblock copolymer-template...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2014.0083
更新日期:2015-06-06 00:00:00
abstract::There is a growing need for patient-specific and holistic modelling of the heart to support comprehensive disease assessment and intervention planning as well as prediction of therapeutic outcomes. We propose a patient-specific model of the whole human heart, which integrates morphology, dynamics and haemodynamic para...
journal_title:Interface focus
pub_type: 杂志文章
doi:10.1098/rsfs.2010.0036
更新日期:2011-06-06 00:00:00