Effects of print orientation on the design of additively manufactured bio-based flexible lattice structures
(2022) NordDesign 2022- Abstract
- In upholstery applications, it is common to use polyurethane (PUR) foam when flexibility is desired. However, as PUR is a carbon-based material produced using toxic isocyanates, it is environmentally beneficial to replace PUR with bio-based alternatives. The challenge, however, lies in finding suitable bio-based replacement materials, capable of mimicking the foam-like functionality of PUR since many are stiff and brittle. Therefore, instead of relying on the inherent material property, this paper explores the possibility of producing flexible foam-like structures from bio-based materials with additive manufacturing (AM) employed as the manufacturing technique. As one of the key design constraints associated with AM is the intrinsic... (More)
- In upholstery applications, it is common to use polyurethane (PUR) foam when flexibility is desired. However, as PUR is a carbon-based material produced using toxic isocyanates, it is environmentally beneficial to replace PUR with bio-based alternatives. The challenge, however, lies in finding suitable bio-based replacement materials, capable of mimicking the foam-like functionality of PUR since many are stiff and brittle. Therefore, instead of relying on the inherent material property, this paper explores the possibility of producing flexible foam-like structures from bio-based materials with additive manufacturing (AM) employed as the manufacturing technique. As one of the key design constraints associated with AM is the intrinsic material anisotropy in the build direction, this paper focuses on the effects of print orientation on the compressive behaviour of structure which is indicative of flexibility. Three open-celled strut-based lattice structures are chosen for this purpose and the effect of these cell topologies on the compressive behaviour of structures is studied. The scope of this work includes structures printed using selective laser sintering (SLS) in a bio-based polyamide material (PA 1101). The results show that material failure and deformation behaviour are affected by print orientation, while the amount of plastic deformation is more influenced by the lattice cell topology. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/8b1fe1d0-89b3-4f4c-8bdc-f71106091e7a
- author
- Dash, Satabdee LU and Nordin, Axel LU
- organization
- publishing date
- 2022
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- keywords
- Design for Additive Manufacturing (DfAM), Lattice structure, Anisotropy, flexible structures, biobased polymers
- host publication
- DS 118: Proceedings of NordDesign 2022, Copenhagen, Denmark, 16th - 18th August 2022 : How product and manufacturing design enable sustainable companies and societies - How product and manufacturing design enable sustainable companies and societies
- article number
- 184292
- pages
- 12 pages
- publisher
- Design Society
- conference name
- NordDesign 2022
- conference location
- Copenhagen, Denmark
- conference dates
- 2022-08-16 - 2022-08-18
- external identifiers
-
- scopus:85142877047
- ISBN
- 9781912254170
- DOI
- 10.35199/NORDDESIGN2022.13
- language
- English
- LU publication?
- yes
- id
- 8b1fe1d0-89b3-4f4c-8bdc-f71106091e7a
- date added to LUP
- 2022-08-16 14:51:34
- date last changed
- 2023-12-20 03:50:44
@inproceedings{8b1fe1d0-89b3-4f4c-8bdc-f71106091e7a,
abstract = {{In upholstery applications, it is common to use polyurethane (PUR) foam when flexibility is desired. However, as PUR is a carbon-based material produced using toxic isocyanates, it is environmentally beneficial to replace PUR with bio-based alternatives. The challenge, however, lies in finding suitable bio-based replacement materials, capable of mimicking the foam-like functionality of PUR since many are stiff and brittle. Therefore, instead of relying on the inherent material property, this paper explores the possibility of producing flexible foam-like structures from bio-based materials with additive manufacturing (AM) employed as the manufacturing technique. As one of the key design constraints associated with AM is the intrinsic material anisotropy in the build direction, this paper focuses on the effects of print orientation on the compressive behaviour of structure which is indicative of flexibility. Three open-celled strut-based lattice structures are chosen for this purpose and the effect of these cell topologies on the compressive behaviour of structures is studied. The scope of this work includes structures printed using selective laser sintering (SLS) in a bio-based polyamide material (PA 1101). The results show that material failure and deformation behaviour are affected by print orientation, while the amount of plastic deformation is more influenced by the lattice cell topology.}},
author = {{Dash, Satabdee and Nordin, Axel}},
booktitle = {{DS 118: Proceedings of NordDesign 2022, Copenhagen, Denmark, 16th - 18th August 2022 : How product and manufacturing design enable sustainable companies and societies}},
isbn = {{9781912254170}},
keywords = {{Design for Additive Manufacturing (DfAM); Lattice structure; Anisotropy; flexible structures; biobased polymers}},
language = {{eng}},
publisher = {{Design Society}},
title = {{Effects of print orientation on the design of additively manufactured bio-based flexible lattice structures}},
url = {{http://dx.doi.org/10.35199/NORDDESIGN2022.13}},
doi = {{10.35199/NORDDESIGN2022.13}},
year = {{2022}},
}