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Numerical and Dimensional Analysis for Prediction of Line Heating Residual Deformations(PDF)

《船舶与海洋工程学报》[ISSN:1002-2848/CN:61-1400/f]

期数:
2010年01
页码:
14-21
栏目:
出版日期:
2010-02-25

文章信息/Info

Title:
Numerical and Dimensional Analysis for Prediction of Line Heating Residual Deformations
作者:
Pankaj Biswas;  Nisith Ranjan Mandal;  Om Prakash Sha
Department of Ocean Engineering and Naval Architecture, IIT, Kharagpur 721302, India
Author(s):
Pankaj Biswas*;  Nisith Ranjan Mandal ; Om Prakash Sha
Department of Ocean Engineering and Naval Architecture, IIT, Kharagpur 721302, India
关键词:
dimensional analysis;  3-D finite element analysis;  elasto-plastic analysis;  residual deformations;  multiple regression analysis;  oxy-acetylene gas flame
分类号:
-
DOI:
-
文献标识码:
A
摘要:
Abstract: Line heating process is a very complex phenomenon as a variety of factors affects the amount of residual deformations. Numerical thermal and mechanical analysis of line heating for prediction of residual deformation is time consuming. In the present work dimensional analysis has been presented to obtain a new relationship between input parameters and resulting residual deformations during line heating process. The temperature distribution and residual deformations for 6 mm, 8 mm, 10 mm and 12 mm thick steel plates were numerically estimated and compared with experimental and published results. Extensive data generated through a validated FE model were used to find co-relationship between the input parameters and the resulting residual deformation by multiple regression analysis. The results obtained from the deformation equations developed in this work compared well with those of the FE analysis with a drop in the computation time in the order of 100 (computational time required for FE analysis is around 7 200 second to 9 000 seconds and where the time required for getting the residual deformation by developed equations is only 60 to 90 seconds).

参考文献/References

Bansal RK (2007). Fluid mechanics and hydraulic machines. Laxmi Publications (P) Ltd., New Delhi, India.

Biswas P, Mandal NR, Sha OP (2007). Three dimensional finite element prediction of transient thermal history and residual deformation due to line heating. Journal of Engineering for the Maritime Environment, Part M, 221(1), 17-30.

Biswas P, Mandal NR, Sha OP (2009). 3-D FEM and ANN prediction of thermal history and residual deformation of line heating by oxy acetylene gas flame. Journal of Mechanical Behavior of Materials, 19(1), 83-104.

Clausen HB (1999). Three-dimensional numerical simulation of plate forming by line heating. 10th International Conference on Computer Applications in Shipbuilding (ICCAS), Cambridge, USA, 387-398.

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Ueda K, Murakawa H, Rashwan AM, Okumoto Y, Kamichika, R (1994). Development of computer-aided process planning system for plate bending by line heating (report 1)–relation between final form of plate and inherent strain. Journal of Ship Production, 10(1), 59-67.

Ueda Y, Murakawa H, Rashwan AM, Kamichika R, Ishiyama M, Ogama J (1993). Development of computer-aided process planning system for plate bending by line heating (report 4)-decision making on heating conditions, location, and direction. Journal of Welding Research Institute, 22(2), 305-313.

Yu G, Anderson RJ, Maekawa T, Patrikalakis NM (2001). Efficient simulation of shell forming by line heating. Journal of Mechanical Sciences, 43, 2349-2370.

备注/Memo

备注/Memo:
-
更新日期/Last Update: 2010-03-10