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Você está aqui: Página Inicial Notícias Palestra “Structural integrity assessment of metallic components under multiaxial fatigue: the Carpinteri criterion and its evolution” com Profa. Sabrina Vantadori
Prof. IGNACIO ITURRIOZ e Equipe do Laboratório Grupo de Mecânica Aplicada GMAp, no dia 20 de outubro de 2017, sexta-feira, das 14:00 às 15:00, para Palestra “Structural integrity assessment of metallic components under multiaxial fatigue: the Carpinteri criterion and its evolution” com Profa. Sabrina Vantadori, Parma University- Italy.
Quando 20/10/2017
das 14:00 até 15:00
Onde MEC402CUPULA – CÚPULA CENTRAL-Engenharia Mecânica
Participantes Profa. Sabrina Vantadori, Parma University- Italy.
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Structural integrity assessment of metallic components under
multiaxial fatigue: the Carpinteri criterion and its evolution
Synopsis:
Engineering metallic structural components may be subjected to a large spectrum of timevarying
fatigue loadings, such as non-proportional (out-of-phase) cyclic loading,
asynchronous cyclic loading, complex loading paths, mean stresses, varying stress
amplitudes and random loading. Real in-service time-varying loadings are often multiaxial
in nature, but the life of metallic structures is commonly evaluated by employing uniaxial
fatigue test parameters, because multiaxial fatigue experimental tests are complex and
expensive. Therefore, several criteria available in the literature to assess finite life fatigue
strength as well as (conventional) fatigue limit reduce a given multiaxial stress state to an
equivalent uniaxial stress condition. Nevertheless, an approach that is fully accepted by
the entire scientific community is still missing.
The present presentation discusses the evolution of a critical plane-based multiaxial
fatigue criterion, originally proposed by Carpinteri et al.. By appropriate changes to the
original formulation, the extended versions of the aforementioned criterion are able to
assess smooth and notched metallic structural components subjected to different fatigue
loading conditions and fatigue regimes. The results obtained through this criterion are
compared with some experimental results related to relevant data reported in the literature.
Bio:
Sabrina Vantadori is associate professor in Structural Mechanics at the Department of
Engineering and Architecture of the University of Parma. Her area of expertise is
fatigue and fracture mechanics of traditional and innovative materials. She received 5
Scientific International Award. She was the chairperson of 1 International
Conference, member of International Scientific Advisory Committees of several
International Conferences, and keynote speakers of 4 International Conferences. She
was editor of 4 Special Issue of International Journals. She is committee member of 2
international journals with peer-review. She is author of more then 60 publications on
international peer-reviewed journal with impact factor.

Structural integrity assessment of metallic components undermultiaxial fatigue: the Carpinteri criterion and its evolutionSynopsis:Engineering metallic structural components may be subjected to a large spectrum of timevaryingfatigue loadings, such as non-proportional (out-of-phase) cyclic loading,asynchronous cyclic loading, complex loading paths, mean stresses, varying stressamplitudes and random loading. Real in-service time-varying loadings are often multiaxialin nature, but the life of metallic structures is commonly evaluated by employing uniaxialfatigue test parameters, because multiaxial fatigue experimental tests are complex andexpensive. Therefore, several criteria available in the literature to assess finite life fatiguestrength as well as (conventional) fatigue limit reduce a given multiaxial stress state to anequivalent uniaxial stress condition. Nevertheless, an approach that is fully accepted bythe entire scientific community is still missing.The present presentation discusses the evolution of a critical plane-based multiaxialfatigue criterion, originally proposed by Carpinteri et al.. By appropriate changes to theoriginal formulation, the extended versions of the aforementioned criterion are able toassess smooth and notched metallic structural components subjected to different fatigueloading conditions and fatigue regimes. The results obtained through this criterion arecompared with some experimental results related to relevant data reported in the literature.Bio:Sabrina Vantadori is associate professor in Structural Mechanics at the Department ofEngineering and Architecture of the University of Parma. Her area of expertise isfatigue and fracture mechanics of traditional and innovative materials. She received 5Scientific International Award. She was the chairperson of 1 InternationalConference, member of International Scientific Advisory Committees of severalInternational Conferences, and keynote speakers of 4 International Conferences. Shewas editor of 4 Special Issue of International Journals. She is committee member of 2international journals with peer-review. She is author of more then 60 publications oninternational peer-reviewed journal with impact factor.