Thermomechanical Simulation of the Selective Laser Melting Process for PA12 including Volumetric Shrinkage

Riedlbauer, D., Steinmann, P. and Mergheim, J. (2014) Thermomechanical Simulation of the Selective Laser Melting Process for PA12 including Volumetric Shrinkage. In: 30th International Conference of the Polymer Processing Society, PPS 2014, Cleveland, US, 6-12 Jun 2014, (doi: 10.1063/1.4918512)

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Abstract

The present contribution is concerned with the finite element simulation of the thermomechanical material behavior in the selective laser melting process for PA12. In the process shrinkage of the powder material is observed when becoming melt, as the porous character of the powder vanishes due to the phase transition. A nonlinear thermomechanical finite element model is developed, which captures the shrinkage of the material and includes temperature dependent material parameters. The model is used to simulate the shrinkage of the material in the process, where an adaptive mesh refinement is applied for increasing the accuracy of the simulation. The results are qualitatively compared with experimental data and show a good agreement.

Item Type:Conference Proceedings
Additional Information:Published in: AIP Conference Proceedings, volume 1664, 22 May 2015, article number 1600051.
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Steinmann, Professor Paul
Authors: Riedlbauer, D., Steinmann, P., and Mergheim, J.
College/School:College of Science and Engineering > School of Engineering > Infrastructure and Environment
Journal Name:AIP Conference Proceedings
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