کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4629300 1340577 2013 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analysis of coupled transport phenomena in concrete at elevated temperatures
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
پیش نمایش صفحه اول مقاله
Analysis of coupled transport phenomena in concrete at elevated temperatures
چکیده انگلیسی

In this paper, we study a non-linear numerical scheme arising from the implicit time discretization of the Bažant–Thonguthai model for hygro-thermal behavior of concrete at high temperatures. Existence of the time-discrete solution in two dimensions is established using the theory of pseudomonotone operators in Banach spaces. Next, the spatial discretization is accomplished by the conforming finite element method. An illustrative numerical example shows that the model reproduces well the rapid increase of pore pressure in wet concrete due to extreme heating. Such phenomenon is of particular interest for the safety assessment of concrete structures prone to thermally-induced spalling.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematics and Computation - Volume 219, Issue 13, 1 March 2013, Pages 7262–7274
نویسندگان
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