Výsledky vyhledávání - "Couque Hervé"

Akademický článek

Numerical modelling strategies using implicit and explicit methods to simulate quasi-static and dynamic three-points bend fracture tests of a ductile steel

Autor: Nozères Frédéric, Couque Hervé, Boulanger Rémi, Quirion Yann, Bailly Patrice, Limido Jérôme

Publikováno v: EPJ Web of Conferences, Vol 250, p 02033 (2021)

Three-point bend fracture tests have been conducted at different loading rates with a quadratic martensitic steel. The failure energy has been found to increase with loading rate. To get insights in this increase a numerical investigation has been un

Externí odkaz: https://doaj.org/article/5e085b37fda544c3a1b37810433c1c82

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Akademický článek

Influence of strain rate on the mechanical response of nanostructured coppers elaborated by SPD and SPS

Autor: Couque Hervé, Khoptiar Yuri, Bernard Frédéric, Gutman Itamar, Bussiere Florian, Naimi Foad, Boulanger Rémi, Barthélémy François

Publikováno v: EPJ Web of Conferences, Vol 250, p 03014 (2021)

The influence of strain rate on the mechanical response of two different nanostructured pure coppers was investigated under uniaxial compression. The first nanostructured copper was elaborated by powder metallurgy using the Spark Plasma Sintering (SP

Externí odkaz: https://doaj.org/article/d968e8f978144ee3b899e855fa7a107f

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Akademický článek

Analysis of Dynamic Plastic Deformation process on an Electrolytic Tough - Pitch copper (Cu-ETP): From material characterization to models improvement

Autor: Mespoulet Jérôme, Beucia Bermane, Tingaud David, Hereil Pierre-Louis, Couque Hervé, Dirras Guy

Publikováno v: EPJ Web of Conferences, Vol 183, p 03023 (2018)

This paper presents a comprehensive study of a direct impact compression loading on an Electrolytic Tough-Pitch copper (Cu-ETP). The aim of the study is to provide reliable experimental data in this dynamic loading using high-speed video camera recor

Externí odkaz: https://doaj.org/article/f365312bb3874b6a8e0cd3d76b075d11

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Akademický článek

Experimental and numerical analyses of the dynamic failure processes of symmetric Taylor impact specimens

Autor: Couque Hervé

Publikováno v: EPJ Web of Conferences, Vol 183, p 01043 (2018)

Failure processes encountered in the Taylor impact specimen are of two kinds, Mode II cracks initiating within adiabatic shear bands and tensile cracks. Because friction occurring with the single Taylor configuration influences the failure processes,

Externí odkaz: https://doaj.org/article/d6e98ead662944148c7c33c762fc8a76

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Akademický článek

On the importance of recrystallization to reproduce the Taylor impact specimen shape of a pure nickel

Autor: Couque Hervé

Publikováno v: EPJ Web of Conferences, Vol 94, p 02024 (2015)

Taylor tests are a mean to investigate the dynamic plastic and failure behaviour of metals under compression. By taking in account the strengthening occurring at high strain rates, the Taylor final diameter of a pure nickel impacted at 453 m/s have b

Externí odkaz: https://doaj.org/article/5c3d47770b7747b3a69f599c1f131287

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Akademický článek

Foreword

Autor: Couque Hervé

Publikováno v: EPJ Web of Conferences, Vol 26, p 00001 (2012)

The DYMAT International Conference is a “compelling scientific event” for engineers and scientists working in the dynamic behaviour of materials field. Since 1983, DYMAT has been organizing a five days single sessions of oral presentations and po

Externí odkaz: https://doaj.org/article/70505a8dc77240b78ea5a3512a9a4d0c

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