DAMREG

Pushing the Frontier of Brittlness Damage Resistant Glasses

 Coordinatore UNIVERSITE DE RENNES I 

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 Nazionalità Coordinatore France [FR]
 Totale costo 1˙821˙596 €
 EC contributo 1˙821˙596 €
 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-2012-ADG_20120216
 Funding Scheme ERC-AG
 Anno di inizio 2013
 Periodo (anno-mese-giorno) 2013-06-01   -   2018-05-31

 Partecipanti

# participant  country  role  EC contrib. [€] 
1    UNIVERSITE DE RENNES I

 Organization address address: RUE DU THABOR 2
city: RENNES CEDEX
postcode: 35065

contact info
Titolo: Mrs.
Nome: Yolaine
Cognome: Bompays
Email: send email
Telefono: +33 2 23233723
Fax: +33 2 23235876

FR (RENNES CEDEX) hostInstitution 1˙821˙596.00
2    UNIVERSITE DE RENNES I

 Organization address address: RUE DU THABOR 2
city: RENNES CEDEX
postcode: 35065

contact info
Titolo: Prof.
Nome: Tanguy Gilles Michel
Cognome: Rouxel
Email: send email
Telefono: +33 2 23236718
Fax: +33 2 23236111

FR (RENNES CEDEX) hostInstitution 1˙821˙596.00

Mappa


 Word cloud

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

stress    damreg    proportional    structure    treatments    surface    chemical    composition    mechanical    tip    fundamental    initiation    fracture    behavior    crack    glass   

 Obiettivo del progetto (Objective)

'In order to improve the strength of a glass part (flat display, window, lens, fiber, etc.), most investigations so far were devoted to thermal and chemical surface treatments aimed at generating compressive stresses at the surface. The DAMREG project focuses on the incidence of the glass composition and atomic network structure on the mechanical properties, and specifically on the cracking and fracture behavior, and is based on the experience and expertise of the PI on the structure-property relationships in glass science. This project proposes to address the fundamental issue of glass brittleness in a new paradigm of thinking, questioning the usefulness of the standard fracture toughness parameter, with emphasis on the surface flaw generation process (multiscale approach), and aims at determining novel routes to improve the mechanical performance of glass further promoting innovative applications. DAMREG involves revisiting the fundamental fracture mechanics concepts, the preparation of novel glass compositions, and nanoscale physico-chemical and mechanical characterization. So far most glass fracture studies focused on the crack tip behavior, and were limited to vitreous silica. A crack acts as a lever arm for the stress so that the singular stress at the tip is proportional to the crack length and inversely proportional to the square-root of the tip radius (provided this has a meaning). Since a crack can hardly be cured or shielded at ambient, the presence of a sharp crack is already detrimental. On the contrary to this approach, DAMREG is aimed at understanding the crack initiation process, and the main objective is to define some roadmap to design glasses (composition, thermo-mechanical treatments etc.) with better damage (initiation) resistance.'

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