NDLI: Development of a new combined heat source model for welding based on a polynomial curve fit of the experimental fusion line

Content Provider	Springer Nature Link
Author	Wang, Junqiang Han, Jianmin Domblesky, Joseph P. Yang, Zhiyong Zhao, Yingxin Zhang, Qiang
Copyright Year	2016
Abstract	To improve the accuracy of finite element (FE) models used to simulate electric arc and beam-based fusion welding processes, a combined heat source model is proposed. The combined model, termed the polynomial heat source, is based on a Gaussian heat density distribution and employs a disc source to account for surface heating effects while a polynomial equation is used to define the volumetric heat power source. This provides an improved capability for matching the heat source power distribution to fusion zones having variable curvature and also results in a simplified process for defining heat source parameters as only three numerical values need to be determined. To validate the heat source model, fusion zone cross sections, thermal cycles, angular distortion, and residual stresses obtained using SYSWELD were compared to measurements taken from gas metal arc (GMA) welds made on 10-mm-thick high-strength low-alloy (HSLA) plates. Predictions obtained from SYSWELD using double ellipsoid and conical heat source models were also compared. An analysis of the FE predictions obtained from each of the three heat source models showed that the best agreement between simulated and experimental values was achieved using the polynomial model. This is attributed to the fact that heat power distribution can be adjusted at the top and bottom of the fusion zone and results in an improved level of bead cross section matching. It is expected that the proposed heat source model will be applicable for simulating both shallow and deep penetration welding processes where the fusion zone is symmetric about its centerline.
Starting Page	1985
Ending Page	1997
Page Count	13
File Format	PDF
ISSN	02683768
Journal	The International Journal of Advanced Manufacturing Technology
Volume Number	87
Issue Number	5-8
e-ISSN	14333015
Language	English
Publisher	Springer London
Publisher Date	2016-03-15
Publisher Place	London
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Gaussian heat source Finite element modeling Welding distortion Residual stress GMA welding Industrial and Production Engineering Production Mechanical Engineering Computer-Aided Engineering (CAD, CAE) and Design
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Mechanical Engineering Computer Science Applications Software

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Effect of welding sequence on temperature distribution, distortions, and residual stress on stiffened plates

Predicting residual stresses and distortion during multisequence welding of large size structures using FEM

Procedure to predict residual stress pattern in spray transfer multipass welding

Influence of self-protective atmosphere in fiber laser welding of austenitic stainless steel

Effect of clamping area and welding speed on the friction stir welding-induced residual stresses

“Finite element modeling of the effect of heat input on residual stresses in dissimilar joints”

Mathematical modeling of moving heat source shape for submerged arc welding process

Prediction of welding distortion in multipass girth-butt welded pipes of different wall thickness

Analysis of arc interference and welding stability in twin wire GMA welding

Development of a new combined heat source model for welding based on a polynomial curve fit of the experimental fusion line

Similar Documents

Effect of welding sequence on temperature distribution, distortions, and residual stress on stiffened plates

Predicting residual stresses and distortion during multisequence welding of large size structures using FEM

Procedure to predict residual stress pattern in spray transfer multipass welding

Influence of self-protective atmosphere in fiber laser welding of austenitic stainless steel

Effect of clamping area and welding speed on the friction stir welding-induced residual stresses

“Finite element modeling of the effect of heat input on residual stresses in dissimilar joints”

Mathematical modeling of moving heat source shape for submerged arc welding process

Prediction of welding distortion in multipass girth-butt welded pipes of different wall thickness

Analysis of arc interference and welding stability in twin wire GMA welding

Development of a new combined heat source model for welding based on a polynomial curve fit of the experimental fusion line