Materials Map

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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Jelitto, Hans

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Hamburg University of Technology

in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (32/32 displayed)

  • 2024Impact of thermal shock on the R-curve and subcritical damage behaviour of flame-sprayed alumina compoundscitations
  • 2023On the fracture behaviour of niobium–alumina castables2citations
  • 2020Crack propagation behaviour of carbon free and carbon bonded alumina based filter materials7citations
  • 2020Strong Macroscale Supercrystalline Structures by 3D Printing Combined with Self‐Assembly of Ceramic Functionalized Nanoparticles20citations
  • 2020Strong Macroscale Supercrystalline Structures by 3D Printing Combined with Self‐Assembly of Ceramic Functionalized Nanoparticles20citations
  • 2020Extended cubic fracture model for porous materials and the dependence of the fracture toughness on the pore size5citations
  • 2019Stable crack propagation in free standing thermal sprayed Al2O3 and Al2O3ZrO2TiO2 coatings22citations
  • 2019Stable crack propagation in free standing thermal sprayed Al 2 O 3 and Al 2 O 3 —ZrO 2 —TiO 2 coatings22citations
  • 2019Room temperature R-curve and stable crack growth behaviour of ZrB2–SiC ceramic composites6citations
  • 2018Comparative study of static and cyclic fatigue of ZrB2-SiC ceramic composites7citations
  • 2018R-curve behavior and flexural strength of zirconia-toughened alumina and partially stabilized zirconia composite laminates11citations
  • 2015Nanoporous-gold-based composites: toward tensile ductility61citations
  • 2015Intergranular Nanostructure Effects on Strength and Toughness of Si3 N426citations
  • 2015Tough Alumina/Polymer Layered Composites with High Ceramic Content39citations
  • 2015Nanoporous-gold-based composites : toward tensile ductilitycitations
  • 2014Fracture toughness and corrosion behaviour of infiltrated Al2O3|P – Steel composites17citations
  • 2013Effective permittivity of air-filled cracks in piezoelectric ceramics due to crack bridging8citations
  • 2013Automated Control of Stable Crack Growth for R-Curve Measurements in Brittle Materials18citations
  • 2012Experimental Crack Front Investigation of Unpoled Soft Lead Zirconate Titanate (PZT) Using the Single Edge V-Notched Beam (SEVNB) Method4citations
  • 2011What Do We Know About Surface Charges on Cracks in Ferroelectric Ceramics?2citations
  • 2010What do we know about surface charges on cracks in ferroelectric ceramics?citations
  • 2010R-Curves from Compliance and Optical Crack-Length Measurements29citations
  • 2009Bridging stresses from R-curves of silicon nitrides19citations
  • 2009Interfacial fracture of piezoelectric multilayer actuators under mechanical and electrical loading19citations
  • 2009Determination of the crack-tip toughness in silicon nitride ceramics14citations
  • 2008Fracture criterion for a conducting crack in poled PZT-PIC 151 investigated by stable crack growth9citations
  • 2008R-Curve Determination for the Initial Stage of Crack Extension in Si3N432citations
  • 2007Fracture in Piezoelectric Ceramics and PZT/Electrode Interfacescitations
  • 2007Stable crack growth in piezoelectric ceramics and PZT/electrode interfacescitations
  • 2007Structural micro-layered ceramics with surfaces under tension and compression with increasing apparent fracture toughness4citations
  • 2005Zur Bestimmung bruchmechanischer Kennwerte am Piezo-Aktorcitations
  • 2004R-Curve Measurement Instrumentation – Development and Application of a Novel System for Advanced Ceramicscitations

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Chart of shared publication
Aneziris, Christos G.
2 / 21 shared
Hubálková, Jana
1 / 3 shared
Kerber, Florian
1 / 2 shared
Gehre, Patrick
2 / 3 shared
Neumann, Marc
2 / 2 shared
Focke, Oliver
1 / 1 shared
Zegarra Berodt, Eduardo
1 / 1 shared
Tan, Alvin T. L.
1 / 1 shared
Schneider, Gerold A.
5 / 43 shared
Mueller, Martin
1 / 10 shared
Cem Tasan, C.
1 / 1 shared
Cann, Jaclyn
1 / 1 shared
Colombi Ciacchi, Lucio
1 / 2 shared
Blankenburg, Malte
1 / 26 shared
Furlan, Kaline P.
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John Hart, A.
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Domènech, Berta
1 / 15 shared
Kuebler, Jakob
2 / 53 shared
Dadivanyan, Natalia
1 / 1 shared
Weissmüller, Jörg
1 / 19 shared
Wang, Ke
1 / 18 shared
Kübel, Christian
1 / 44 shared
Kobler, Aaron
1 / 3 shared
Felten, Frank
1 / 1 shared
Engert, Andrea Raphaela
1 / 1 shared
Dobedoe, Richard
1 / 1 shared
Blugan, Gurdial
1 / 52 shared
Schneider, G. A.
1 / 11 shared
Vinzelberg, S.
1 / 1 shared
Köpke, U.
1 / 1 shared
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Co-Authors (by relevance)

  • Aneziris, Christos G.
  • Hubálková, Jana
  • Kerber, Florian
  • Gehre, Patrick
  • Neumann, Marc
  • Focke, Oliver
  • Zegarra Berodt, Eduardo
  • Tan, Alvin T. L.
  • Schneider, Gerold A.
  • Mueller, Martin
  • Cem Tasan, C.
  • Cann, Jaclyn
  • Colombi Ciacchi, Lucio
  • Blankenburg, Malte
  • Furlan, Kaline P.
  • John Hart, A.
  • Domènech, Berta
  • Kuebler, Jakob
  • Dadivanyan, Natalia
  • Weissmüller, Jörg
  • Wang, Ke
  • Kübel, Christian
  • Kobler, Aaron
  • Felten, Frank
  • Engert, Andrea Raphaela
  • Dobedoe, Richard
  • Blugan, Gurdial
  • Schneider, G. A.
  • Vinzelberg, S.
  • Köpke, U.
OrganizationsLocationPeople

document

Zur Bestimmung bruchmechanischer Kennwerte am Piezo-Aktor

  • Jelitto, Hans
Abstract

Risse an oder in dünnen Metallelektroden stellen eine Ausfallursache für Piezo-Aktoren dar. Von Interesse sind daher die das stabile Risswachstum bestimmenden bruchmechanischen Parameter für den Piezokeramik-Elektroden-Grenzflächenriss. Die bruchmechanischen Parameter werden theoretisch und experimentell bestimmt. Die Messung der zu einem Rissfortschritt führenden elektrischen und mechanischen Lasten erfolgt an 4-Punkt Biegeproben. Mit Hilfe der theoretischen Lösung für das Rissspitzenfeld des verallgemeinerten ebenen elektro-mechanischen Problems werden die K-Faktoren definiert. Die Bestimmung der kritischen K-Faktoren erfolgt mittels numerisch berechneter Geometriefunktionen für die 4-Punkt Biegeprobe. Aus dem Rissschließintegral ergibt sich der Zusammenhang zwischen den K-Faktoren und der Energiefreisetzungsrate.Cracks at thin electrodes are a known failure mode of piezoelectric actuators. For that reason the fracture mechanical parameters determining the stable crack grow for such interfacial cracks are of interest. The fracture mechanical parameters will be determined theoretical and experimental. The measurement of the critical loads leading to crack grow are performed at 4-point bending specimens. Using the theoretical solution for the near tip crack field of the generalized two dimensional problem the intensity factors will be defined. The determination of the critical intensity factors results from numerical calculated shape functions for the 4-point bending specimen. The crack closure integral gives the connection between the intensity parameters and the energy release rate.

Topics
  • crack
  • interfacial
  • additive manufacturing
  • discrete element method