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José M. Martínez-Esnaola

Researcher at University of Navarra

Publications -  91
Citations -  1376

José M. Martínez-Esnaola is an academic researcher from University of Navarra. The author has contributed to research in topics: Fracture mechanics & Nanoindentation. The author has an hindex of 19, co-authored 89 publications receiving 1220 citations. Previous affiliations of José M. Martínez-Esnaola include Centro de Estudios e Investigaciones Técnicas de Gipuzkoa.

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Absence of one-to-one correspondence between elastoplastic properties and sharp-indentation load penetration data

TL;DR: In this article, it was shown that it is not possible to measure uniquely these mechanical properties of a sample in that way, and that even hardness is not a readily measurable magnitude since the real contact area depends on both the elastic and plastic properties of the sample.
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Critical examination of strain-rate sensitivity measurement by nanoindentation methods: Application to severely deformed niobium

TL;DR: In this paper, two different techniques for measuring the strain-rate sensitivity exponent, m, of the power law relating the equivalent flow stress and the equivalent plastic strain rate are analyzed, paying special attention to the errors induced by the thermal drift rate and by the indentation-size effect.
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Modelling the effect of oxidation on the creep behaviour of fibre-reinforced ceramic matrix composites

TL;DR: In this article, the effects of interface and matrix oxidation, creep of the fibres and degradation of fiber strength with time were investigated for continuous fiber-reinforced ceramic matrix composites at high temperature.
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Fatigue crack propagation in complex stress fields: Experiments and numerical simulations using the Extended Finite Element Method (XFEM)

TL;DR: In this article, the authors presented the numerical simulation and validation of a fatigue propagation test of a semi-elliptical crack located at the side of the rectangular section of a beam subjected to four-point bending.