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Rodriguez, M., Molina Aldareguía, Jon M., González Martínez, Carlos Daniel and Llorca Martinez, Francisco Javier (2012). Determination of the mechanical properties of amorphous materials through instrumented nanoindentation. "Acta Materialia", v. 60 (n. 9); pp. 3953-3964. ISSN 1359-6454. https://doi.org/10.1016/j.actamat.2012.03.027.
Title: | Determination of the mechanical properties of amorphous materials through instrumented nanoindentation |
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Author/s: |
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Item Type: | Article |
Título de Revista/Publicación: | Acta Materialia |
Date: | May 2012 |
ISSN: | 1359-6454 |
Volume: | 60 |
Subjects: | |
Faculty: | E.T.S.I. Caminos, Canales y Puertos (UPM) |
Department: | Ciencia de los Materiales |
Creative Commons Licenses: | Recognition - No derivative works - Non commercial |
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A novel methodology based on instrumented indentation is developed to determine the mechanical properties of amorphous materials which present cohesive-frictional behaviour. The approach is based on the concept of a universal hardness equation, which results from the assumption of a characteristic indentation pressure proportional to the hardness. The actual universal hardness equation is obtained from a detailed finite element analysis of the process of sharp indentation for a very wide range of material properties, and the inverse problem (i.e. how to extract the elastic modulus, the compressive yield strength and the friction angle) from instrumented indentation is solved. The applicability and limitations of the novel approach are highlighted. Finally, the model is validated against experimental data in metallic and ceramic glasses as well as polymers, covering a wide range of amorphous materials in terms of elastic modulus, yield strength and friction angle.
Item ID: | 15736 |
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DC Identifier: | https://oa.upm.es/15736/ |
OAI Identifier: | oai:oa.upm.es:15736 |
DOI: | 10.1016/j.actamat.2012.03.027 |
Official URL: | http://www.sciencedirect.com/science/article/pii/S... |
Deposited by: | Memoria Investigacion |
Deposited on: | 22 Oct 2013 09:32 |
Last Modified: | 27 Feb 2023 07:32 |