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Frequency-Dependent Neutron Emissions During Fatigue Tests on Iron-Rich Natural Rocks

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Acoustic, Electromagnetic, Neutron Emissions from Fracture and Earthquakes

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Abstract

The results coming from neutron emission measurements during fatigue experiments performed at low (2 Hz), intermediate (200 Hz), and high (20 kHz) frequency are reported. These results confirm that appreciable neutron emissions, greater than the background level, may be observed during damage accumulation in iron-bearing rocks: granite (Fe oxides ~1.5 %), basalt (Fe oxides ~15 %), and magnetite (Fe oxides ~75 %). The neutron detection, together with temperature measurements obtained by infrared revelation, lead to the conclusion that fatigue tests performed at 200 Hz represent the condition for which the neutron emission is the highest. This evidence seems to be particularly important considering recent results from seismological observation of the Jacinto fault in the Southern California and the neutron emissions detected during seismic activity.

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Authors and Affiliations

  1. Department of Structural, Geotechnical and Building Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Torino, Italy

    Alberto Carpinteri, Amedeo Manuello, Oscar Borla & Giuseppe Lacidogna

  2. Department of Mechanical And Aerospace Engineering, Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129, Torino, Italy

    Francesca Maria Curà & Raffaella Sesana

Authors
  1. Alberto Carpinteri
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  2. Francesca Maria Curà
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  3. Raffaella Sesana
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  4. Amedeo Manuello
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  5. Oscar Borla
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  6. Giuseppe Lacidogna
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Correspondence to Alberto Carpinteri .

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Editors and Affiliations

  1. Department of Structural, Geotechnical and Bulding Engineering, Politecnico di Torino, Torino, Italy

    Alberto Carpinteri

  2. Department of Structural, Geotechnical and Building Engineering, Politecnico di Torino, Torino, Italy

    Giuseppe Lacidogna

  3. Department of Structural, Geotechnics and Building Engineering, Politecnico di Torino, Torino, Italy

    Amedeo Manuello

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Carpinteri, A., Curà, F.M., Sesana, R., Manuello, A., Borla, O., Lacidogna, G. (2015). Frequency-Dependent Neutron Emissions During Fatigue Tests on Iron-Rich Natural Rocks. In: Carpinteri, A., Lacidogna, G., Manuello, A. (eds) Acoustic, Electromagnetic, Neutron Emissions from Fracture and Earthquakes. Springer, Cham. https://doi.org/10.1007/978-3-319-16955-2_4

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  • DOI: https://doi.org/10.1007/978-3-319-16955-2_4

  • Publisher Name: Springer, Cham

  • Print ISBN: 978-3-319-16954-5

  • Online ISBN: 978-3-319-16955-2

  • eBook Packages: EngineeringEngineering (R0)

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