Giró-Paloma, J.; Roa, JJ.; Díez-Pascual, AM.; Rayón Encinas, E.; Flores, A.; Martínez, M.; Chimenos, JM.... (2013). Depth-sensing indentation applied to polymers: A comparison between standard methods of analysis in relation to the nature of the materials. European Polymer Journal. 49(12):4047-4053. https://doi.org/10.1016/j.eurpolymj.2013.09.010
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/51242
Title:
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Depth-sensing indentation applied to polymers: A comparison between standard methods of analysis in relation to the nature of the materials
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Author:
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Giró-Paloma, J.
Roa, J. J.
Díez-Pascual, A. M.
Rayón Encinas, Emilio
Flores, A.
Martínez, M.
Chimenos, J. M.
Fernández, A. I.
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UPV Unit:
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Universitat Politècnica de València. Departamento de Ingeniería Mecánica y de Materiales - Departament d'Enginyeria Mecànica i de Materials
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Issued date:
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Abstract:
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Mechanical data (hardness and elastic modulus) from instrumented indentation testing are often extracted assuming linear elasticity in the initial portion of the unloading. The method is nowadays widely accepted as a ...[+]
Mechanical data (hardness and elastic modulus) from instrumented indentation testing are often extracted assuming linear elasticity in the initial portion of the unloading. The method is nowadays widely accepted as a convenient tool to interpret depth-sensing data, however it is a matter of controversy when applied to polymer materials due to their time-dependent behavior. More recently, Loubet and co-workers applied continuous stiffness measurements (CSM), consisting of superimposing a small oscillation to the quasi-static component of loading, to the study of the mechanical properties of polymers and proposed a new model to account for the apparent increase in the contact area detected at the first stages of contact. The present work offers a comparative study between the Loubet's model using CSM and the procedure yielding a single reading from the onset of unloading. A wide range of thermoplastic polymer materials including glassy and semicrystalline polymers have been investigated. The most important equations employed for each method are summarized and the advantages and disadvantages of employing one procedure or the other are discussed. The differences found between the results obtained from both approaches are discussed in relation to the nature of the polymer material. A comparison between mechanical data extracted from indentation measurements and from classical dynamic mechanical analysis is offered. (C) 2013 Elsevier Ltd. All rights reserved.
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Subjects:
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Nanoindentation
,
CSM
,
Hardness
,
Elastic modulus
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Copyrigths:
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Cerrado |
Source:
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European Polymer Journal. (issn:
0014-3057
) (eissn:
1873-1945
)
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DOI:
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10.1016/j.eurpolymj.2013.09.010
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Publisher:
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Elsevier
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Publisher version:
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http://dx.doi.org/10.1016/j.eurpolymj.2013.09.010
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Project ID:
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info:eu-repo/grantAgreement/MICINN//FIS2010-18069/ES/PROPIEDADES VISCOELASTICAS DE SISTEMAS POLIMERICOS NANOESTRUCTURADOS MEDIANTE NANOINDENTACION/
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Thanks:
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The authors would like to thank C. Ferrer and M.D. Salvador of the Universidad Politecnica de Valencia, the European Union (COST Action TU0802), and the Catalan Government for the quality accreditation given to research ...[+]
The authors would like to thank C. Ferrer and M.D. Salvador of the Universidad Politecnica de Valencia, the European Union (COST Action TU0802), and the Catalan Government for the quality accreditation given to research group DIOPMA (2009 SGR 645). One of us (AF) thanks the MICINN (Ministerio de Ciencia e Innovacion), Spain, for financial support under the grant FIS2010-18069. We would like to thank the Linguistic Services at the Universitat de Barcelona for linguistic and stylistic advice.
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Type:
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Artículo
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