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Influence of strut angle and radius on the energy absorption and failure mechanisms in 3-strut, 4-strut and 6-strut lattice structures
Date
2024-01-01
Author
Ture, Mustafa Okan
Evis, Zafer
Metadata
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3D-printed truss structures have remarkable potential in the aerospace and weight-critical technologies fields. However, design parameters need to be carefully considered. A low overhang angle or diameter can result in discrepancies. This research presents an approach by examining the effect of strut overhang angle and radius on the mechanical properties of 3-, 4- and 6-strut lattice structures under compressive loading. 1.6- and 2.4-mm diameter struts were designed with 45°, 50°, 55° and 60° overhang angle strut lattices. Experiments were simulated and compared with test results for each parameter. Even if joint regions have little effect on specimens' density, it has a remarkable effect on mechanical properties of the specimen. To simulate this, many studies were investigated to simulate joint regions. The study's goal is to deepen the understanding of how design variations in strut lattice structures influence their energy-absorbing characteristic and mechanical behavior, using a combination of static tests and finite element analysis for validation. This insight is crucial for optimizing lattice design to balance weight, strength, and energy-absorbing capacity effectively. The experimental test result and numerical result showed rather good agreement. It is observed that joint regions, overhang angle, and diameters were the main parameters affecting specimens' mechanical behavior.
Subject Keywords
additive manufacturing
,
compressive behavior
,
lattice structure
,
overhang angle
,
strut lattices
URI
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85203404078&origin=inward
https://hdl.handle.net/11511/111136
Journal
Materialpruefung/Materials Testing
DOI
https://doi.org/10.1515/mt-2024-0276
Collections
Department of Engineering Sciences, Article
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BibTeX
M. O. Ture and Z. Evis, “Influence of strut angle and radius on the energy absorption and failure mechanisms in 3-strut, 4-strut and 6-strut lattice structures,”
Materialpruefung/Materials Testing
, pp. 0–0, 2024, Accessed: 00, 2024. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85203404078&origin=inward.