کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1473723 991057 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Thermo-mechanical modelling of rock-like materials at very high temperature: Application to ceramic refractories
ترجمه فارسی عنوان
مدل سازی حرارتی مکانیکی از مواد سنگ مانند در دمای بسیار بالا: کاربردی برای نسوز سرامیک
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی

Rock-like materials like ceramic refractories, in working conditions may be subject to large temperature variations. To simulate practical applications, bespoke constitutive modelling is required. In this work a general, thermodynamically consistent framework, able to incorporate key micromechanical features of the material behaviour, and applicable to a wide range of geomaterials, is formulated and validated. Different thermodynamic potentials are proposed to deal with both reversibility and irreversibility. A key advantage of this approach is the ability to freely choose the thermal dependency interpolation functions. Extensive model validation is provided by correctly reproducing both reversible and irreversible experimental trends of different materials under different loading conditions. It is found that even for simple materials, if a sample is subject to a large stress level, its thermal and mechanical responses become unexpectedly coupled. The proposed modelling framework is not limited to refractories and can be easily adapted to different types of rock-like materials.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 36, Issue 9, August 2016, Pages 2193–2204
نویسندگان
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