Volume 24, Issue 3 (March 2024)
Modares Mechanical Engineering 2024, 24(3): 141-151 |
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dolatshahi A, toozandehjani H, farrokhabadi A. Prediction of Mechanical Properties and Failure of Honeycomb and DNA Inspired Mesh Structure under Tensile Load. Modares Mechanical Engineering 2024; 24 (3) :141-151
URL: http://mme.modares.ac.ir/article-15-73845-en.html
URL: http://mme.modares.ac.ir/article-15-73845-en.html
1- Tarbiat Modares University
2- Tarbiat Modares University ,amin-farrokh@modares.ac.ir
2- Tarbiat Modares University ,
Abstract: (539 Views)
This study introduces a novel lattice structure, whose unit cell design draws inspiration from the fusion of honeycomb patterns and the DNA found at the core of cells, constructed from PLA material. This structure underwent tensile testing along the X and Y axes. Additionally, the paper presents a new analytical-numerical approach that combines Timoshenko beam theory, mechanics of materials principles, and finite element analysis to determine the mechanical properties and forecast failure in cellular structures. This method was corroborated using the ABAQUS commercial software. Research indicated that a closer ratio of thickness to unit cell length, specifically 1/10, leads to more precise predictions for the mechanical behavior of the cellular structure under tension along the X axis. The findings showed that, in comparison to the Y axis, the X direction exhibited a 7% increase in load-bearing capacity and an 8% increase in maximum yield stress, yet the equivalent stiffness was 75% lower
Keywords: Cellular Structure, Lattice Structure, Failure Prediction, Finite Element, Experimental Method, Numerical Method
Article Type: Original Research |
Subject:
Aerospace Structures
Received: 2024/02/13 | Accepted: 2024/06/9 | Published: 2024/02/29
Received: 2024/02/13 | Accepted: 2024/06/9 | Published: 2024/02/29
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