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Author : C. Tsai
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (137 download)
Download or read book An effective finite element procedure for residual stress predictions in multi-pass welds, EWI MR9509 written by C. Tsai and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of Finite Element Modelling of Multipass Welds written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The initial objective was to develop a finite element model to predict weldresidual stress, with special emphasis on multipass weldments. Asubsequent objective was to investigate how weld passes interact in a multi-pass weld. A simplified but reliable analysis procedure for theprediction of the final residual stress state in a multi-pass weld wassought The use of a commercial finite element package called ABAQUS [1.1]was examined. The package was modified to meet the needs of the study.
Author : A. Yaghi
Publisher :
ISBN 13 :
Total Pages : 34 pages
Book Rating : 4.E/5 ( download)
Download or read book State of the Art Review written by A. Yaghi and published by . This book was released on 2005 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kittichai Sojiphan
Publisher :
ISBN 13 :
Total Pages : 258 pages
Book Rating : 4.:/5 (495 download)
Download or read book Finite Element Modeling of Residual Stress Formation in Polycarbonate Welds written by Kittichai Sojiphan and published by . This book was released on 2008 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: Abstract: Formation of residual stresses during hot plate welding and other plastic welding processes can have detrimental effects on the joint quality under static and dynamic loading as well as reduce the corrosion resistance of the joints. Therefore, it is important to measure and predict residual stress level to prevent premature failures. Uncoupled finite element thermal analysis and viscoelastic stress-strain analysis were used to calculate the temperature distribution and history in the parts and thermal and residual stress formation during welding. Thermal properties and viscoelastic relaxation modulus of polycarbonate were compiled from the literature to build the material model for the finite element simulation. Residual stress levels in hot plate polycarbonate welds were computed for different hot plate temperatures and heating times. It was found that shorter heating times resulted in faster cooling rates and higher residual stress. The model was also used to calculate residual stresses in through transmission infrared and vibration welding of polycarbonate. The predicted residual stress levels and distributions were in good agreement with published experimental results for hot plate and through transmission infrared welding. Thus, finite element modeling is an effective way for predicting residual stress for a wide range of plastic welding method.
