SIZEFFECTS

Size effects in fracture and plasticity

 Coordinatore  

Spiacenti, non ci sono informazioni su questo coordinatore. Contattare Fabio per maggiori infomrazioni, grazie.

 Nazionalità Coordinatore Non specificata
 Totale costo 2˙500˙000 €
 EC contributo 2˙500˙000 €
 Programma FP7-IDEAS-ERC
Specific programme: "Ideas" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
 Code Call ERC-2011-ADG_20110209
 Funding Scheme E
 Anno di inizio 2012
 Periodo (anno-mese-giorno) 2012-03-01   -   2017-02-28

 Partecipanti

# participant  country  role  EC contrib. [€] 
1    CONSIGLIO NAZIONALE DELLE RICERCHE

 Organization address address: Piazzale Aldo Moro 7
city: ROMA
postcode: 185

contact info
Titolo: Dr.
Nome: Tiziana
Cognome: Collodel
Email: send email
Telefono: 390498000000
Fax: 390498000000

IT (ROMA) beneficiary 771˙566.11
2    FONDAZIONE ISTITUTO PER L'INTERSCAMBIO SCIENTIFICO (I.S.I.)

 Organization address address: VIALE SETTIMIO SEVERO 65
city: TORINO
postcode: 10133

contact info
Titolo: Dr.
Nome: Roberto
Cognome: Palermo
Email: send email
Telefono: +39 011 6603090
Fax: +39 011 6600049

IT (TORINO) beneficiary 682˙800.00
3    UNIVERSITA DEGLI STUDI DI MILANO

 Organization address address: Via Festa Del Perdono 7
city: MILANO
postcode: 20122

contact info
Titolo: Dr.
Nome: Fortunato
Cognome: Laface
Email: send email
Telefono: 390250000000

IT (MILANO) hostInstitution 1˙045˙633.89
4    UNIVERSITA DEGLI STUDI DI MILANO

 Organization address address: Via Festa Del Perdono 7
city: MILANO
postcode: 20122

contact info
Titolo: Prof.
Nome: Stefano
Cognome: Zapperi
Email: send email
Telefono: +3902503 17427
Fax: 390250000000

IT (MILANO) hostInstitution 1˙045˙633.89

Mappa


 Word cloud

Esplora la "nuvola delle parole (Word Cloud) per avere un'idea di massima del progetto.

strength    dynamics    fracture    materials    perturbation    nanoscale    size    plasticity    samples    problem    mechanical    mechanics    theory    fluctuations   

 Obiettivo del progetto (Objective)

'Understanding how materials respond to external mechanical perturbation is a central problem of science and engineering. While for most practical purposes it is useful to idealize the mechanical response of a material as a deterministic function of the externally applied perturbation, disorder and fluctuations are unavoidable, leading to sample-to-sample variations and non-trivial size effects. The size dependence of strength is a well known but still unresolved issue in the fracture of materials and structures. The difficulty in addressing this problem stems from the complex interplay between microstructual heterogeneity and long-range elastic interactions. Furthermore, in micro and nanoscale samples, the plastic yield strength displays size effects and strain bursts, features that are not present in macroscopic samples where plasticity is a smooth process. Large fluctuations both in fracture processes and in microscale plasticity make the use of conventional continuum mechanics problematic and calls instead for a statistically based approach. These problems are becoming particularly important in the current miniaturization trend towards nanoscale devices, since the relative amplitude of fluctuations grows as the sample size is reduced. In this project, concepts and tools of statistical mechanics are used to address size effects and fluctuations in the irreversible deformation and failure of materials. The general objective is to provide a quantitative theory that can be used as base for setting reliable safety factors. The theory will be based on the renormalization group and will be guided and validated by large scale numerical simulations such as molecular dynamics, discrete dislocation dynamics and disordered network models. Finally, we will analyze experimental data present in the literature.'

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