Modelling of heat transfer at the solid to solid interface
PBN-AR
Instytucja
Wydział Inżynierii Metali i Informatyki Przemysłowej (Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie)
Informacje podstawowe
Główny język publikacji
EN
Czasopismo
ARCHIVES OF METALLURGY AND MATERIALS
ISSN
1733-3490
EISSN
Wydawca
POLISH ACAD SCIENCES COMMITTEE METALLURGY and INSTITUTE OF METALLURGY AND MATERIALS SCIENCE
DOI
Rok publikacji
2016
Numer zeszytu
1
Strony od-do
341--346
Numer tomu
61
Link do pełnego tekstu
Identyfikator DOI
Liczba arkuszy
0.42
Słowa kluczowe
EN
heat transfer
inverse method
solid - solid interface
Streszczenia
Język
EN
Treść
In technological process of steel industry heat transfer is a very important factor. Heat transfer plays an essential role especially in rolling and forging processes. Heat flux between a tool and work piece is a function of temperature, pressure and time. A methodology for the determination of the heat transfer at solid to solid interface has been developed. It involves physical experiment and numerical methods. The first one requires measurements of the temperature variations at specified points in the two samples brought into contact. Samples made of C45 and NC6 steels have been employed in physical experiment. One of the samples was heated to an initial temperature of: 800°C, 1000°C and 1100°C. The second sample has been kept at room temperature. The numerical part makes use of the inverse method for calculating the heat flux and at the interface. The method involves the temperature field simulation in the axially symmetrical samples. The objective function is bulled up as a dimensionless error norm between measured and computed temperatures. The variable metric method is employed in the objective function minimization. The heat transfer coefficient variation in time at the boundary surface is approximated by cubic spline functions. The influence of pressure and temperature on the heat flux has been analysed. The problem has been solved by applying the inverse procedure and finite element method for the temperature field simulations. The self-developed software has been used. The simulation results, along with their analysis, have been presented.
Cechy publikacji
original article
peer-reviewed
Inne
System-identifier
idp:096803
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