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Optimal Heat Transfer Coefficient Distributions during the Controlled Cooling Process of an H-Shape Steel Beam
Joint Authors
Source
Advances in Materials Science and Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-09-27
Country of Publication
Egypt
No. of Pages
15
Abstract EN
Three-dimensional thermal-mechanical models for the prediction of heat transfer coefficient distributions with different size beams are investigated.
H300 × 300, H250 × 250, and H200 × 200 H-shape steel beams are investigated in a controlled cooling process to obtain the design requirements for maximum uniform temperature distributions and minimal residual stress after controlled cooling.
An algorithm developed with the conjugated-gradient method is used to optimize the heat transfer coefficient distribution.
In a comparison with the three group results, the numerical results indicate that, with the same model and under the same initial temperature (T=850°C) and final temperature (T=550±10°C), the heat transfer coefficients obtained with the conjugated-gradient method can produce more uniform temperature distribution and smaller residual web stress, with objective functions of the final average temperature Tave±ΔT and maximum temperature difference to minimum minΔTmax(x,y).
The maximum temperature difference is decreased by 57°C, 74°C, and 75°C for Case 1, Case 2, and Case 3, respectively, the surface maximum temperature difference is decreased by 60~80°C for three cases, and the residual stress at the web can be reduced by 20~40 MPa for three cases.
American Psychological Association (APA)
Gan, Yu-Feng& Jang, Jiin Yuh. 2017. Optimal Heat Transfer Coefficient Distributions during the Controlled Cooling Process of an H-Shape Steel Beam. Advances in Materials Science and Engineering،Vol. 2017, no. 2017, pp.1-15.
https://search.emarefa.net/detail/BIM-1125186
Modern Language Association (MLA)
Gan, Yu-Feng& Jang, Jiin Yuh. Optimal Heat Transfer Coefficient Distributions during the Controlled Cooling Process of an H-Shape Steel Beam. Advances in Materials Science and Engineering No. 2017 (2017), pp.1-15.
https://search.emarefa.net/detail/BIM-1125186
American Medical Association (AMA)
Gan, Yu-Feng& Jang, Jiin Yuh. Optimal Heat Transfer Coefficient Distributions during the Controlled Cooling Process of an H-Shape Steel Beam. Advances in Materials Science and Engineering. 2017. Vol. 2017, no. 2017, pp.1-15.
https://search.emarefa.net/detail/BIM-1125186
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1125186