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Mechanical Performance of a Node-Reinforced Body-Centered Cubic Lattice Structure: An Equal-Strength Concept Design.
- Source :
- Aerospace (MDPI Publishing); Jan2024, Vol. 11 Issue 1, p4, 16p
- Publication Year :
- 2024
-
Abstract
- Lattice structures are characterized by a light weight, high strength, and high stiffness, and have a wide range of applications in the aerospace field. Node stress concentration is a key factor affecting the mechanical performance of lattice structures. In this paper, a new equal-strength body-centered cubic (ES-BCC) lattice structure was additively manufactured using 316L stainless steel via selective laser melting (SLM). The results of a mechanical compression test and finite element analysis revealed that the failure location of the ES-BCC structure changed from the nodes to the center of the struts. At the same density, the energy absorption, elastic modulus, and yield strength of the ES-BCC structure increased by 11.89%, 61.80%, and 53.72% compared to the BCC structure, respectively. Furthermore, the change in angle of the ES-BCC structure achieves significant changes in strength, stiffness, and energy absorption to meet different design requirements and engineering applications. The equal-strength concept design can be applied as a general design method to the design of other lightweight energy-absorbing lattice structures. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 22264310
- Volume :
- 11
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Aerospace (MDPI Publishing)
- Publication Type :
- Academic Journal
- Accession number :
- 175049702
- Full Text :
- https://doi.org/10.3390/aerospace11010004