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An Electroplastic Internal State Var...

Dimitrov, Nikolay Krasimirov.

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An Electroplastic Internal State Variable Model for Nonferromagnetic Ductile Metals.

Record Type:	Electronic resources : Monograph/item
Title/Author:	An Electroplastic Internal State Variable Model for Nonferromagnetic Ductile Metals./
Author:	Dimitrov, Nikolay Krasimirov.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
Description:	105 p.
Notes:	Source: Dissertations Abstracts International, Volume: 80-12, Section: B.
Contained By:	Dissertations Abstracts International80-12B.
Subject:	Mechanical engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13815229
ISBN:	9781392172636

An Electroplastic Internal State Variable Model for Nonferromagnetic Ductile Metals.
Dimitrov, Nikolay Krasimirov.

An Electroplastic Internal State Variable Model for Nonferromagnetic Ductile Metals. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 105 p.

Source: Dissertations Abstracts International, Volume: 80-12, Section: B.

Thesis (Ph.D.)--Mississippi State University, 2019.

This item must not be sold to any third party vendors.

A multi-physics Internal State Variable (ISV) theory that couples the thermo-elasto-visco-plastic-damage model of Bammann with electricity-related electromagnetic phenomena was formulated with internally consistent kinematics, thermodynamics, and kinetics. An innovative methodology to experimentally distinguish the ElectroPlastic (EP) effect from the thermal expansion was developed and applied to experimentally validate the proposed theoretical electro-mechanical model. Three series of quasi-static uniaxial tension experiments with titanium, copper, and zinc were conducted and a quadratic dependence of the EP stress drop on the electric current density was observed. This study experimentally confirmed the existence of EP as an electron-dislocation interaction phenomenon. The significance of the non-EP effects in the electromechanical coupling problems was estimated. The experimental procedure limitations were thoroughly discussed as well as the sensitivity and uncertainty, associated with each of the model parameters. Conclusions and suggestions for future work supplement the study. This piloting work on electro-mechanical coupling opened new horizons for modeling and experimental observation of the electroplastic effect.

ISBN: 9781392172636Subjects--Topical Terms:

649730
Mechanical engineering.

An Electroplastic Internal State Variable Model for Nonferromagnetic Ductile Metals.
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020 $a 9781392172636
035 $a (MiAaPQ)AAI13815229
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100 1 $a Dimitrov, Nikolay Krasimirov. $3 3540082
245 1 3 $a An Electroplastic Internal State Variable Model for Nonferromagnetic Ductile Metals.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2019
300 $a 105 p.
500 $a Source: Dissertations Abstracts International, Volume: 80-12, Section: B.
500 $a Publisher info.: Dissertation/Thesis.
500 $a Advisor: Liu, Yucheng;Horstemeyer, Mark F.
502 $a Thesis (Ph.D.)--Mississippi State University, 2019.
506 $a This item must not be sold to any third party vendors.
520 $a A multi-physics Internal State Variable (ISV) theory that couples the thermo-elasto-visco-plastic-damage model of Bammann with electricity-related electromagnetic phenomena was formulated with internally consistent kinematics, thermodynamics, and kinetics. An innovative methodology to experimentally distinguish the ElectroPlastic (EP) effect from the thermal expansion was developed and applied to experimentally validate the proposed theoretical electro-mechanical model. Three series of quasi-static uniaxial tension experiments with titanium, copper, and zinc were conducted and a quadratic dependence of the EP stress drop on the electric current density was observed. This study experimentally confirmed the existence of EP as an electron-dislocation interaction phenomenon. The significance of the non-EP effects in the electromechanical coupling problems was estimated. The experimental procedure limitations were thoroughly discussed as well as the sensitivity and uncertainty, associated with each of the model parameters. Conclusions and suggestions for future work supplement the study. This piloting work on electro-mechanical coupling opened new horizons for modeling and experimental observation of the electroplastic effect.
590 $a School code: 0132.
650 4 $a Mechanical engineering. $3 649730
650 4 $a Electromagnetics. $3 3173223
650 4 $a Materials science. $3 543314
690 $a 0548
690 $a 0607
690 $a 0794
710 2 $a Mississippi State University. $b Mechanical Engineering. $3 1058083
773 0 $t Dissertations Abstracts International $g 80-12B.
790 $a 0132
791 $a Ph.D.
792 $a 2019
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13815229