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Generation, Analysis and Characteriz...

Trifale, Ninad T.

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Generation, Analysis and Characterization of Anisotropic Engineered Meta Materials.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Generation, Analysis and Characterization of Anisotropic Engineered Meta Materials./
Author:	Trifale, Ninad T.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2017,
Description:	128 p.
Notes:	Source: Dissertation Abstracts International, Volume: 79-03(E), Section: B.
Contained By:	Dissertation Abstracts International79-03B(E).
Subject:	Mechanical engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10599263
ISBN:	9780355257113

Generation, Analysis and Characterization of Anisotropic Engineered Meta Materials.
Trifale, Ninad T.

Generation, Analysis and Characterization of Anisotropic Engineered Meta Materials. - Ann Arbor : ProQuest Dissertations & Theses, 2017 - 128 p.

Source: Dissertation Abstracts International, Volume: 79-03(E), Section: B.

Thesis (Ph.D.)--Purdue University, 2017.

A methodology for a systematic generation of highly anisotropic micro-lattice structures was investigated. Multiple algorithms for generation and validation of engineered structures are developed and evaluated. Set of all possible permutations of structures for an 8-node cubic unit cell were considered and the degree of anisotropy of meta-properties in heat transport and mechanical elasticity were evaluated. Feasibility checks were performed to ensure that the generated unit cell network was repeatable and a continuous lattice structure. Four different strategies for generating permutations of the structures are discussed. Analytical models were developed to predict effective thermal, mechanical and permeability characteristics of these cellular structures.Experimentation and numerical modeling techniques were used to validate the models that are developed.

ISBN: 9780355257113Subjects--Topical Terms:

649730
Mechanical engineering.

Generation, Analysis and Characterization of Anisotropic Engineered Meta Materials.
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100 1 $a Trifale, Ninad T. $3 3342078
245 1 0 $a Generation, Analysis and Characterization of Anisotropic Engineered Meta Materials.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2017
300 $a 128 p.
500 $a Source: Dissertation Abstracts International, Volume: 79-03(E), Section: B.
500 $a Advisers: Eric A. Nauman; Kazuaki Yazawa.
502 $a Thesis (Ph.D.)--Purdue University, 2017.
520 $a A methodology for a systematic generation of highly anisotropic micro-lattice structures was investigated. Multiple algorithms for generation and validation of engineered structures are developed and evaluated. Set of all possible permutations of structures for an 8-node cubic unit cell were considered and the degree of anisotropy of meta-properties in heat transport and mechanical elasticity were evaluated. Feasibility checks were performed to ensure that the generated unit cell network was repeatable and a continuous lattice structure. Four different strategies for generating permutations of the structures are discussed. Analytical models were developed to predict effective thermal, mechanical and permeability characteristics of these cellular structures.Experimentation and numerical modeling techniques were used to validate the models that are developed.
520 $a A self-consistent mechanical elasticity model was developed which connects the meso-scale properties to stiffness of individual struts. A three dimensional thermal resistance network analogy was used to evaluate the effective thermal conductivity of the structures. The struts were modeled as a network of one dimensional thermal resistive elements and effective conductivity evaluated. Models were validated against numerical simulations and experimental measurements on 3D printed samples. Model was developed to predict effective permeability of these engineered structures based on Darcy's law. Drag coefficients were evaluated for individual connections in transverse and longitudinal directions and an interaction term was calibrated from the experimental data in literature in order to predict permeability.
520 $a Generic optimization framework coupled to finite element solver is developed for analyzing any application involving use of porous structures. An objective functions were generated structure to address frequently observed trade-off between the stiffness, thermal conductivity, permeability and porosity. Three application were analyzed for potential use of engineered materials. Heat spreader application involving thermal and mechanical constraints, artificial bone grafts application involving mechanical and permeability constraints and structural materials applications involving mechanical, thermal and porosity constraints is analyzed. Recommendations for optimum topologies for specific operating conditions are provided.
590 $a School code: 0183.
650 4 $a Mechanical engineering. $3 649730
650 4 $a Materials science. $3 543314
650 4 $a Mechanics. $3 525881
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710 2 $a Purdue University. $b Mechanical Engineering. $3 1019124
773 0 $t Dissertation Abstracts International $g 79-03B(E).
790 $a 0183
791 $a Ph.D.
792 $a 2017
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10599263