Comparative Study on Mechanical Properties in Single and Dual-Material FDM 3D-Printed Specimens

DOI

10.2991/978-94-6239-750-7_79How to use a DOI?

Keywords

Additive Manufacturing; FDM Dual-Material Fabrication method; Mechanical Properties; Auxetic structures

Abstract

This work presents experimental testing of the mechanical performance of components produced by additive manufacturing, particularly fused deposition modelling (FDM). The research focused on comparative studies related single-material and dual-material constructions. Four categories of specimens were used and investigated: rectangular specimens with hexagonal honeycomb cavity networks in both single (PLA) and dual (PLA/ABS) configurations, cylindrical specimens (PLA), hollow hexagonal structures (PETG), and rectangular geometries. The mechanical characterization includes uniaxial compression tests using a Universal Testing Machine (UTM) and impact assessment by the unnotched Charpy method. Test results presented compressive strengths of (21.8 ± 2.3) MPa for single-material PLA honeycomb specimens, improving by (44% to 31.5 ± 2.7) MPa after adding ABS reinforcement layers. Impact energy absorption determined from the Charpy test 3.2 ± 0.4 kJ/m² for single material configurations and (8.7 ± 0.6 kJ/m²) for the two-material configurations. Cylindrical specimens presented non-uniform strength distribution with in geometric sections, consistent with stress concentration theory. Results shows that material selection, geometric optimization through auxetic structures, and multi-material construction effectively enhances FDM-method component mechanical strength.

Copyright

© 2026 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - Sahil Khan
AU  - Abhimanyu Anand
AU  - Mohammad Nadir
AU  - Salman Khursheed Ahmad
AU  - Pawan Kumar Mall
PY  - 2026
DA  - 2026/08/31
TI  - Comparative Study on Mechanical Properties in Single and Dual-Material FDM 3D-Printed Specimens
BT  - Proceedings of the International Conference on Advanced Design, Manufacturing, and Sustainable Energy Systems (ICADMSES 2026)
PB  - Atlantis Press
SP  - 1096
EP  - 1110
SN  - 2589-4943
UR  - https://doi.org/10.2991/978-94-6239-750-7_79
DO  - 10.2991/978-94-6239-750-7_79
ID  - Khan2026
ER  -