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Case-Study Inverse Thermal Analyses of Al2198 Laser Welds

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Abstract

In this article, case-study inverse thermal analyses of Al2198 laser welds are presented. These analyses employ a numerical methodology, that is, in terms of analytic and numerical basis functions for inverse thermal analysis of steady-state energy deposition in plate structures. The results of the case studies presented provide parametric representations of weld temperature histories that can be adopted as input data to various types of computational procedures, such as those for prediction of solid-state phase transformations and their associated software implementations. In addition, these weld temperature histories can be used for construction of numerical basis functions that can be adopted for inverse analysis of welds corresponding to other process parameters or welding processes whose process conditions are within similar regimes.

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Acknowledgments

The authors (ADZ and GNH) would like to thank the German Research Foundation DFG for the support of the depicted research within the Cluster of Excellence “Integrative Production Technology for High-Wage Countries” at RWTH Aachen University. Also ADZ acknowledges the support of Dr. Alexander Drenker of Fraunhofer-Institut für Lasertechnik during the experimental research. One of the authors (SGL) acknowledges the support by the Naval Research Laboratory (NRL) internal core program and active scientific collaboration with the University of Thessaly.

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Authors and Affiliations

  1. Department of Mechanical Engineering, University of Thessaly, 38334, Volos, Greece

    A. D. Zervaki, G. N. Haidemenopoulos & D. P. Vriami

  2. Center for Computational Materials, Code 6390, Materials Science and Technology Division, Naval Research Laboratory, Washington, DC, USA

    S. G. Lambrakos

Authors
  1. A. D. Zervaki
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  2. G. N. Haidemenopoulos
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  3. D. P. Vriami
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  4. S. G. Lambrakos
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Correspondence to S. G. Lambrakos.

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Zervaki, A.D., Haidemenopoulos, G.N., Vriami, D.P. et al. Case-Study Inverse Thermal Analyses of Al2198 Laser Welds. J. of Materi Eng and Perform 21, 471–480 (2012). https://doi.org/10.1007/s11665-011-9967-3

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  • DOI: https://doi.org/10.1007/s11665-011-9967-3

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