کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7898258 1510133 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Simulation of thermal shock cracking in ceramics using bond-based peridynamics and FEM
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Simulation of thermal shock cracking in ceramics using bond-based peridynamics and FEM
چکیده انگلیسی
The effects of moderate intensity 'hot' or 'cold' shock in brittle solids have been extensively studied, while much less is known about thermal shock response during large temperature variations. In this study, a combined finite element - peridynamics numerical procedure is proposed for the simulation of cracking in ceramic materials, undergoing severe thermal shock. Initially, Finite Element nonlinear heat transfer analysis is conducted. The effects of surface convection and radiation heat exchange are also included. Subsequently, the interpolated temperature field is used to formulate a varying temperature induced action for a bond-based peridynamics model. The present model, which is weakly coupled, is found to reproduce accurately previous numerical and experimental results regarding the case of a 'cold' shock. Through several numerical experiments it is established that 'cold' and 'hot' shock conditions give rise to different failure modes and that large temperature variations lead to intensified damage evolution.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 38, Issue 8, July 2018, Pages 3037-3048
نویسندگان
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