1,721,059 research outputs found
Interpolazione diretta di dati sperimentali di crescita di cricca a fatica
Full text linkpresentazione orale al XX Convegno Nazionale IGF, Torino, 24-26/6/200
Variations of the elastic modulus of automotive steels after yielding
Full text linkPresentazione orale al convegno TMS 2011 Annual Meeting & Exhibition, svoltosi a San Diego, USA, dal 27/02/2011 al 03/03/201
Exploring the low temperature tempering range of low alloy quenched and tempered steels
Full text linkMicrostructural, mechanical and fatigue properties of Cobalt alloys
Full text linkPresentazione orale al convegno TMS 2010 - 139th Annual Meeting & Exhibition, svoltosi a Seattle (USA) dal 14/02/2010 al 18/02/201
Conservazione e sicurezza strutturale di colonne in ghisa prodotte e montate in opera nel XIX secolo
Full text linkriassunto esteso e presentazione orale al convegno Workshop IGF - Problematiche di Frattura nei Materiali per l'Ingegneria, Forni di Sopra (UD), 7/1/2010 - 9/1/201
On plastic notch effects in quenched and tempered steels
Full text linkABSTRACT: In 1971, Firrao and Spretnak performed a large experimental campaign to assess the elastic-plastic stress concentration factor at fracture as a function of the elastic stress concentration factor and of the tempering temperature, by using 25.4 mm wide, 1.14 mm thick AISI 4340 quenched steel sheet tensile specimens with variable tip radius central notches. The availability of finite element methods allows now to re-examine those results and overcome the simplifying assumptions that were originally used to evaluate notch stresses. The elastic stress concentration factors are obtained by three-dimensional solutions, which also evidence the gradual evolution from plane-stress to plane-strain that occurs by decreasing the notch radius while keeping the thickness constant. Moreover, both the actual stress state and the stress concentration factor in the notch immediately before the failure are evaluated by elastic-plastic solutions. Finally, the original conclusions on the notch sensitivity of the examined steel are re-assessed and reinterprete
Fatigue crack growth in inhomogeneous steel components
Full text linkpresentazione orale al TMS 2009 Annual Meeting & Exhibition (TMS2009), San francisco, CA, USA, 15/2/2008 - 19/2/200
Valutazione della tenacità a frattura di un acciaio inossidabile bifasico austenitico-ferritico mediante l'integrale J
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