The Indentation Size Effect on the Micro-Hardness of Sea Mollusc Shell Structures
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Tomislav Filetin
Abstract
The Vickers micro-hardness of three different sea mollusc shell structures has been determined as a function of the indentation load. The following shells from the Adriatic Sea have been investigated: abalone (Haliotis tuberculata), smooth clam (Callista chione), and warty venus (Venus verrucosa). The results show that the measured micro-hardness depends on the load for all of the investigated seashell structures, which indicates the influence of the indentation size effect (ISE). The load dependence of micro-hardness has been analyzed by using the known Meyer's Law, the proportional specimen resistance model (PSR), and the modified proportional specimen resistance model. The best correlation between measured values and used models has been achieved by using the modified PSR model.
Kurzfassung
Für den vorliegenden Beitrag wurde die Vickers-Härte von drei verschiedenen Seemuschelstrukturen als Funktion der Eindringlast bestimmt. Hierzu wurden die folgenden Muscheln des Adriatischen Meeres untersucht: Seeohr (Haliotis tuberculata), Weiche Venusmuschel (Callista chione) und Warzige Venusmuschel (Venus verrucosa). Die Ergebnisse zeigen, dass die gemessene Mikrohärte bei allen untersuchten Muschelstrukturen von der aufgebrachten Last abhängt, was auf einen Einfluss der Indentorgröße (Indentation Size Effect — ISE) hinweist. Die Lastabhänigkeit der Mikrohärte wurde mittels des bekannten Meyer'schen Gesetzes, des proportionalen Probenwiderstandsmodells und dem modifizierten proprotionalen Probenwiderstandmodells analysiert. Die beste Korrelation zwischen den gemessenen Werten und den Modellierungen ergab sich für das modifizierte proportionale Probenwiderstandsmodell.
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© 2011, Carl Hanser Verlag, München
Artikel in diesem Heft
- Inhalt/Contents
- Inhalt
- Fachbeiträge/Technical Contributions
- Mechanische Charakterisierung ultraschallgeschweißter Aluminium/CFK-Verbunde bei automobilrelevanten Temperaturen und Prüfgeschwindigkeiten
- Pressure Resistance of Glass Capillaries for Hydrogen Storage
- Investigations on Joining Surface Hardened Steels by Friction Welding
- In-Situ Crack Detection Using Thermo Elastic Stimulated Lock-In Thermography
- Enhanced Grain Orientation in Pb(Zr,Ti)O3 Powder-Modified SrBi2Ta2O9 Ferroelectric Ceramics
- Effects of Binder and Water Contents on Extrusion Behavior of Zeolite
- Temperature Distribution of Multipass TIG Welded AISI 304L Stainless Steel
- The Indentation Size Effect on the Micro-Hardness of Sea Mollusc Shell Structures
- Fabrication and Characterization of SiC Preforms for Metal Matrix Composites
- Prediction of Fiber/Matrix Debonding Kinetics in Glass Fibre Reinforced Polyoximethylene under Creep
- Vorschau/Preview
- Vorschau
Artikel in diesem Heft
- Inhalt/Contents
- Inhalt
- Fachbeiträge/Technical Contributions
- Mechanische Charakterisierung ultraschallgeschweißter Aluminium/CFK-Verbunde bei automobilrelevanten Temperaturen und Prüfgeschwindigkeiten
- Pressure Resistance of Glass Capillaries for Hydrogen Storage
- Investigations on Joining Surface Hardened Steels by Friction Welding
- In-Situ Crack Detection Using Thermo Elastic Stimulated Lock-In Thermography
- Enhanced Grain Orientation in Pb(Zr,Ti)O3 Powder-Modified SrBi2Ta2O9 Ferroelectric Ceramics
- Effects of Binder and Water Contents on Extrusion Behavior of Zeolite
- Temperature Distribution of Multipass TIG Welded AISI 304L Stainless Steel
- The Indentation Size Effect on the Micro-Hardness of Sea Mollusc Shell Structures
- Fabrication and Characterization of SiC Preforms for Metal Matrix Composites
- Prediction of Fiber/Matrix Debonding Kinetics in Glass Fibre Reinforced Polyoximethylene under Creep
- Vorschau/Preview
- Vorschau