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In addition to research papers, the Design Society is developing several valuable resources for those interested in the study of design. These include a repository of PhD theses, a library of case studies and transcripts of design activities, and an archive of our newsletters. Please note that these resources are accessible exclusively to Design Society members.

Mechanical performance of generative design structures for material extrusion: solid vs shells across mass targets

Eikevåg, Sindre W.; Martinsen, Håvard Revheim; Elverum, Christer W.

Type:
Papers
DS 145: Proceedings of the DESIGN2026 19th International Design Conference
Year:
2026
Editor:
Štorga, M.; Škec, S.; Martinec, T.; Marjanović, D.; Pavković, N.
Author:
Eikevåg, Sindre W.; Martinsen, Håvard Revheim; Elverum, Christer W.
Series:
DESIGN
Institution:
Norwegian University of Science and Technology, Norway
Page(s):
1891-1900
DOI number:
10.1017/pds.2026.10547
ISSN:
2732-527X (Online)
Abstract:
This study compares solid and shell generatively designed PLA components for material extrusion (MEX) at matched mass targets (100, 150, 200 g). Geometries were generated Generative Design (GD) and manufactured by MEX, then tested in a 30° quasi-static compression rig representing prosthetic heel strike. Solid designs achieved up to 92% higher peak load, but failed abruptly, whereas shells exhibited lower strength but progressive, energy-dissipating failure. Results show that simple shelling of GD outcomes cannot replace iterative GD refinement for weight-critical, load-bearing parts.
Keywords:
additive manufacturing, generative design, 3D printing, rapid prototyping
DESIGN2026 - The 19th International Design Conference
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