ENG  Vol.6 No.13 , December 2014
An ICME Approach for Optimizing Thin-Welded Structure Design
Abstract: Integrated computational materials engineering (ICME) is an emerging discipline that can speed up product development by unifying material, design, fabrication, and computational power in a virtual environment. Developing and adapting ICME in industries is a grand challenge technically and culturally. To help develop a strategy for development of this new technology area, an ICME approach was proposed and implemented in optimizing thin welded structure design. The key component in this approach is a database which includes material properties, static strength, impact strength, and failure parameters for a weld. The heat source models, microstructure model, and thermo-mechanical model involved in ICME for welding simulation were discussed. The shell elements representing method for a fusion weld were introduced in details for a butt joint, lap joint, and a Tee joint. Using one or multiple solid elements representing a spot weld in a shell model was also discussed. Database building methods for resistance spot welding and fusion welding have been developed.
Cite this paper: Gou, G. , Yang, Y. and Chen, H. (2014) An ICME Approach for Optimizing Thin-Welded Structure Design. Engineering, 6, 936-947. doi: 10.4236/eng.2014.613085.

[1]   Allison, J., Li, M., Wolverton, C. and Su, X.M., (2006) Virtual Aluminum Castings: An Industrial Application of ICME. JOM, 58, 28-35.

[2]   Schafrik, B. (2012) ICME-Promise and Future Directions. TMS Annual Meeting, Orlando, 14 March 2012.

[3]   Kuehmann, C.J. and Olson, G.B. (2009) Computational Materials Design and Engineering. Materials Science and Technology, 25, 472-478.

[4]   Spanos, G., Allison, J., Cowles, B., Deloach, J. and Pollock, T. (2013) Integrated Computational Materials Engineering (ICME): Implementing ICME in the Aerospace, Automotive, and Maritime Industries, the Minerals, Metals, and Materials Society (TMS).

[5]   Cowles, B.A., Backman, D.G. and Dutton, R.E. (2011) The Development and Implementation of Integrated Computational Materials Engineering (ICME) for Aerospace Applications. Proceedings of Materials Science & Technology 2010 Conference (MS & T 2010), Houston, 17-21 October 2010, 44-60.

[6]   Yang, Y.P., Babu, S.S., Orth, F. and Peterson, W. (2008) Integrated Computational Model to Predict Mechanical Behavior of Spot Weld. Science and Technology of Welding and Joining, 13, 232-239.

[7]   Yang, Y.P., Gould, J., Peterson, W., Orth, F., Zelenak, P. and Al-Fakir, W. (2013) Development of Spot Weld Failure Parameters for Full Vehicle Crash Modeling. Science and Technology of Welding and Joining, 18, 222-231.

[8]   Yang, Y.P. and Babu, S.S. (2010) An Integrated Model to Simulate Laser Cladding Manufacturing Process for Engine Repair Applications. Welding in the World, 54, r298-r307.

[9]   Yang, Y.P., George, W.R. and David, R.S. (2011) Finite Element Analyses of Composite-to-Steel Adhesive Joints. Advanced Materials and Processes, 169, 24-28.

[10]   Goldak, J., Charkravarti, A. and Bibby, M. (1984) New Finite Element Model for Welding Heat Sources. Metallurgical Transactions B, 15B, 300-305.

[11]   Ion, J.C., Easterling, K.E. and Ashby, M.F. (1984) A Second Report on Diagrams of Microstructure and Hardness for Heat-Affected Zones in Welds. Acta Metallurgica, 32, 1949-1955.

[12]   Bhadeshia, H.K.D.H. and Svensson, L.E. (1993) Modelling the Evolution of Microstructure. In: Cerjak, H. and Easterling, K.E., Eds., Steel Weld Metal, Mathematical Modelling of Weld Phenomena, Institute of Materials, London, 109-182.

[13]   Gould, J.E., Khurana, S. and Li, T. (2006) Predictions of Microstructures When Welding Automotive Advanced High-Strength Steels. Welding Journal, 85, 111-s-116-s.

[14]   Zhang, W. and Yang, Y.P. (2009) Development and Application of On-Line Weld Modeling Tool. Welding in the World, 53, 67-75.

[15]   England, G. (2014) Vickers Hardness Scale and Tensile Strength Comparison.

[16]   Wilkins, M.L. (1999) Computer Simulation of Dynamic Phenomena. Springer Publication, Berlin.

[17]   Robin, V., Pyttel, T., Christlein, J. and Strating A. (2014) Fracture Analyses of Welded Components.

[18]   Yang, Y.P., Brust, F.W., Fzelio, A. and McPherson, N. (2004) Weld Modeling of Thin Structures with VFT Software. Proceeding of ASME Pressure Vessels and Piping Conference, San Diego, 25-29 July 2004, 99-107.

[19]   Yang, Y.P., Cao, Z., Zhang, J., Brust, F.W., Fisher, A., Broman, R. and Thakkar, R. (2000) Weld Simulation Technology Development on Automotive Thin Gauge Structure. Presented at 81st American Welding Society Annual Meeting, Chicago, 25-27 April 2000.

[20]   Seeger, F., Feucht, M., Frank, Th., Keding, B. and Haufe, A. (2005) An Investigation on Spot Weld Modeling for Crash Simulation with LS-Dyna. LS-Dyna Anwenderforum, Bamberg.

[21]   Malcom, S. and O’Hara, B. (2009) Application of Spot Weld and Sheet Metal Failure Prediction to Non-Linear Transient Finite Element Analysis of Automotive Structures. SAE Int. J. Mater.Manf., 2, 172-177.