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Properties of Equivalent Source Distributions Useful for Inverse Thermal Analysis

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Abstract

A general approach for inverse thermal analysis of heat deposition processes is parametric modeling of such processes using effective or equivalent source distributions (ESDs). ESDs can be adjusted conveniently for calculation of temperature fields, which are constrained according to boundary and temperature constraint conditions. This study applies properties of ESDs useful for parametric modeling of heat deposition processes. Inverse thermal analysis of a friction stir weld is presented, which is prototypical of processes tending to be complex with respect to energy deposition morphology. This analysis demonstrates properties of ESDs providing relatively optimal parametric modeling of energy deposition processes.

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Acknowledgments

This work was supported by a Naval Research Laboratory (NRL) internal core program.

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

    S. G. Lambrakos

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  1. S. G. Lambrakos
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Correspondence to S. G. Lambrakos.

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Lambrakos, S.G. Properties of Equivalent Source Distributions Useful for Inverse Thermal Analysis. J. of Materi Eng and Perform 28, 4894–4902 (2019). https://doi.org/10.1007/s11665-019-04241-6

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  • DOI: https://doi.org/10.1007/s11665-019-04241-6

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