Parametric tools for the analysis of micro-architectured thin structures
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Insinööritieteiden korkeakoulu |
Master's thesis
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Date
2019-08-19
Department
Major/Subject
Mcode
Degree programme
Master's Programme in Building Technology (CIV)
Language
en
Pages
55+3
Series
Abstract
The present work is devoted to a tool for generating lattice structure geometries. A review on lattice structures is performed passing through their definition, history and actual fields of applicability. An overview of software that is currently available for lattice geometries generation and their finite elements analysis is also accomplished, including the software pros and cons in the context of the research purposes of the present work. Based on the review, a scripted tool is developed and implemented boosting user customization and future FEA integration as a software prototype. An explanation of the generalized idea, structure and organization is given. The validation of the tool has been executed through a banch of examples. The applicational potential of the tool in modelling and analysis of different lattice structures made of the different RVEs is demonstrated including the simulation of possible imperfections arising due to manufacturing defects. In addition, it is shown how the tool can help in homogenization of the artificial micro-architectural lattice materials accomplished with the aid of the gradient elasticity theory.Description
Supervisor
Niiranen, JarkkoThesis advisor
Balobanov, ViacheslavKeywords
lattice structures, micro-architectured material, strain gradient elasticity, finite element analysis, lightweight structures, cellular structures