Opendata, web and dolomites

microKIc SIGNED

Microscopic Origins of Fracture Toughness

Total Cost €

0

EC-Contrib. €

0

Partnership

0

Views

0

 microKIc project word cloud

Explore the words cloud of the microKIc project. It provides you a very rough idea of what is the project "microKIc" about.

mechanistic    quality    criteria    ultimate    bcc    propagation    crack    obstacles    sensitive    microscopic    structures    boundaries    validated    physics    situ    experiments    gain    safety    dislocations    semi    model    rate    arrest    constituents    dependence    first    structural    interactions    framework    predict    time    tips    metals    models    initiation    resistance    material    milling    mechanical    nial    predictive    dynamics    temperature    resistant    ion    microstructure    code    components    experimental    voids    undoubtedly    multiscale    strain    sufficiently    brittle    cracks    phenomenological    mechanics    tip    simulations    3d    toughness    micro    nucleation    discrete    perform    front    precipitates    finite    coupled    varying    semiconductors    microstructural    calibration    systematically    guidelines    specimens    materials    kic    micromechanical    atomistic    steels    plasticity    tested    dislocation    grain    beam    mesoscale    orientation    regarded    refractory    experimentally    tests    macroscopic    fracture    microkic   

Project "microKIc" data sheet

The following table provides information about the project.

Coordinator
FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN NUERNBERG 

Organization address
address: SCHLOSSPLATZ 4
city: ERLANGEN
postcode: 91054
website: www.uni-erlangen.de

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Total cost 1˙996˙570 €
 EC max contribution 1˙996˙570 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2016-COG
 Funding Scheme ERC-COG
 Starting year 2017
 Duration (year-month-day) from 2017-05-01   to  2022-04-30

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    FRIEDRICH-ALEXANDER-UNIVERSITAET ERLANGEN NUERNBERG DE (ERLANGEN) coordinator 1˙699˙175.00
2    CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS FR (PARIS) participant 297˙395.00

Map

 Project objective

The resistance to crack propagation is undoubtedly one of the most important properties of structural materials. However, our current mechanistic understanding of the fracture processes in typical semi-brittle materials like steels, refractory metals or semiconductors is not sufficiently advanced to predict the fracture toughness KIc and its dependence on the microstructure, temperature and strain rate. Therefore, KIc is commonly regarded as a phenomenological material parameter for fracture mechanics models that require experimental calibration.

The aim of microKIc is to study fracture in model materials in order to gain a detailed understanding of the microscopic crack-tip processes during fracture initiation, propagation and arrest, and to systematically study the interactions of cracks with constituents of the microstructure like dislocations, voids, precipitates and grain boundaries. To this end, we will perform fully 3D, large-scale atomistic simulations on cracks in bcc-based materials (W, NiAl) with varying crack orientation, crack front quality, and in the presence of dislocations and microstructural obstacles. The obtained criteria for crack advance and dislocation nucleation at crack tips will be implemented in a coupled finite element - discrete dislocation dynamics code, which will allow for the first time a fully 3D study of fracture and crack-tip plasticity at the mesoscale. The simulations will be compared to in-situ micro-mechanical tests on well-characterized fracture specimens produced by focused ion beam milling.

The ultimate goal of microKIc is to use this experimentally validated multiscale modelling framework to develop a microstructure-sensitive, physics-based micromechanical model of the fracture toughness, which will be tested against macroscopic fracture experiments. Such predictive models are crucial for the development of new failure-resistant materials and for improved design guidelines for safety-relevant structures and components.

 Publications

year authors and title journal last update
List of publications.
2019 Eva I. Preiß, Hao Lyu, Jan P. Liebig, Gunther Richter, Florentina Gannott, Patric A. Gruber, Mathias Göken, Erik Bitzek, Benoit Merle
Microstructural dependence of the fracture toughness of metallic thin films: A bulge test and atomistic simulation study on single-crystalline and polycrystalline silver films
published pages: 3483-3494, ISSN: 0884-2914, DOI: 10.1557/jmr.2019.262
Journal of Materials Research 34/20 2020-01-29
2018 Johannes J. Möller, Erik Bitzek, Rebecca Janisch, Hamad ul Hassan, Alexander Hartmaier
Fracture ab initio: A force-based scaling law for atomistically informed continuum models
published pages: 3750-3761, ISSN: 0884-2914, DOI: 10.1557/jmr.2018.384
Journal of Materials Research 33/22 2019-04-18

Are you the coordinator (or a participant) of this project? Plaese send me more information about the "MICROKIC" project.

For instance: the website url (it has not provided by EU-opendata yet), the logo, a more detailed description of the project (in plain text as a rtf file or a word file), some pictures (as picture files, not embedded into any word file), twitter account, linkedin page, etc.

Send me an  email (fabio@fabiodisconzi.com) and I put them in your project's page as son as possible.

Thanks. And then put a link of this page into your project's website.

The information about "MICROKIC" are provided by the European Opendata Portal: CORDIS opendata.

More projects from the same programme (H2020-EU.1.1.)

evolSingleCellGRN (2019)

Constraint, Adaptation, and Heterogeneity: Genomic and single-cell approaches to understanding the evolution of developmental gene regulatory networks

Read More  

IMMUNOTHROMBOSIS (2019)

Cross-talk between platelets and immunity - implications for host homeostasis and defense

Read More  

RODRESET (2019)

Development of novel optogenetic approaches for improving vision in macular degeneration

Read More