Deliverables
The S-N curves and fatigue limit for specimens with an as built AM surface will be compared to that of specimens with different post processing histories. The results will be analyzed and reported.
Several different post processing methods will be investigated and their effect on fatigue performance of EBM and SLM surfaces will be determined.
A report that links critical metal powder bed AM process parameters and post-processing options to the designer’s geometrical specifications. The report will suggest how these interrelated parameters could be controlled in a CAE-assisted design environment to improve the designer’s ability to predict the performance of components built by powder bed AM.
The mechanical properties of AM components will be dependent of the building orientation. There are several different reasons for this but the main source of anisotropy comes from; (1) non-random grain orientation due columnar grain growth during the building process, (2) the impact of the high surface roughness for thin structures elongated in one direction, (3) non-random orientation or clustering of defects along a certain direction caused by either lack of fusion or hot cracking between columnar grains during solidification and cooling. Mechanical testing will be will be performed on samples with different geometries, processing histories and orientations. The results will be analyzed and reported.
The final update and publication of the dissemination and exploitation plan
One of the key objectives of the project is to maximise the impact of the project results by dissemination and exploitation activities including communication. Further, dissemination and exploitation of project results are an obligation for every Horizon 2020 project. Therefore, the project will set up a dissemination and exploitation plan at the beginning of the project which will be then carried on and updated throughout the project's lifespan.
A computer implementation which makes it possible for a geometry description in CATIA to be used by a mesh generator, giving input to the FE program TRINITAS.
A computer implementation of the deterministic approach to uncertainties that considers residual stresses and uncertain material properties.
A computer implementation of TO, based on the SIMP approach, taking into account (1) anisotropic material properties, (2) the built direction of the AM process, (3) graded material, and (4) stress constraints modeling experimentally determined yield and strength properties.
The purpose of this deliverable is to to develop the project website and to create the dissemination materials to promote and communicate the project at local, national and European level.
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Publications
Author(s): Henrik Alm Grundström
Published in: Report, Issue ISRN: LIU-IEI-WP--18/00009—SE, 2018
Author(s): N. Cruchley
Published in: Clean Sky 2 event, 2019
Author(s): Henrik Alm Grundström
Published in: 2018, Page(s) 13
Author(s): D. Gilbert, D. Basu, B. Smith
Published in: 2018 ASPE and euspen Summer Topical Meeting on Advancing Precision in Additive Manufacturing, 2018, Page(s) 292
Author(s): S. Suresh, S.B. Lindström, C.-J. Thore, B. Torstenfelt, A. Klarbring
Published in: Issue Swedish Mechanics Days (SMD) 2019, 2019
Author(s): S. Suresh, S.B. Lindström, C-J. Thore, B. Torstenfelt and A. Klarbring
Published in: 2019
Author(s): S. Suresh, C-J. Thore, A. Klarbring
Published in: 2019
Author(s): M. Kahlin, H. Ansell and J. Moverare
Published in: 2019
Author(s): S. Stekovic, J. Moverare, A. Klarbring, S. Lindström, C-J. Thore, J. Ölvander, A. Wiberg, B. Smith, A. Triantaphyllou, A. Kiely, A. Kerwin, S. Samanthula, M. Kahlin, N. Eriksson
Published in: Aerospace Technology Congress 2019, 2019
Author(s): Henrik Alm Grundström
Published in: Independent thesis Advanced level, Issue ISRN: LIU-IEI-TEK-A--17/02790—SE, 2017
Author(s): N. Axelsson and M. Brantemo
Published in: 2019
Author(s): Anton Wiberg
Published in: 2019
Author(s): Anton Wiberg, Johan Persson and Johan Ölvander
Published in: Proceedings of the Tools and Methods of Competitive Engineering (TMCE) 2018 Symposia edited by I. Horváth and J.P. Suárez, Issue 7-11 May, 2018, Las Palmas de Gran Canaria, Spain, 2018, Page(s) 533-542
Author(s): Anton Wiberg, Johan Persson, Johan Ölvander
Published in: Volume 2A: 45th Design Automation Conference, 2019
DOI: 10.1115/detc2019-97915
Author(s): Johan A. Persson, Anton Wiberg
Published in: AIAA Scitech 2020 Forum, 2020
DOI: 10.2514/6.2020-0547
Author(s): Anton Wiberg, Johan Persson, Johan Ölvander
Published in: Rapid Prototyping Journal, Issue ahead-of-print/ahead-of-print, 2019, ISSN 1355-2546
DOI: 10.1108/rpj-10-2018-0262
Author(s): M. Kahlin, H. Ansell, D. Basu, A. Kerwin, L. Newton, B. Smith, J.J. Moverare
Published in: International Journal of Fatigue, Issue 134, 2020, Page(s) 105497, ISSN 0142-1123
DOI: 10.1016/j.ijfatigue.2020.105497
Author(s): Shyam Suresh, Stefan B. Lindström, Carl-Johan Thore, Bo Torstenfelt, Anders Klarbring
Published in: Structural and Multidisciplinary Optimization, Issue 61/3, 2020, Page(s) 1011-1025, ISSN 1615-147X
DOI: 10.1007/s00158-019-02400-w
Author(s): C.-J. Thore, H. Alm Grundström, B. Torstenfelt, A. Klarbring
Published in: Structural and Multidisciplinary Optimization, Issue 60/1, 2019, Page(s) 59-67, ISSN 1615-147X
DOI: 10.1007/s00158-019-02194-x
Author(s): M. Kahlin, H. Ansell, D. Basu, A. Kerwin, L. Newton, B. Smith and J.J. Moverare
Published in: International Journal of Fatigue, Issue Volume 134, May 2020, 105497, 2020, ISSN 1879-3452
Author(s): Shyam Suresh, Stefan B. Lindström, Carl-Johan Thore, Bo Torstenfelt, Anders Klarbring
Published in: EngOpt 2018 Proceedings of the 6th International Conference on Engineering Optimization, 2019, Page(s) 844-854
DOI: 10.1007/978-3-319-97773-7_73
