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Mechanical properties of particle sy...

Andia, Pedro C.

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Mechanical properties of particle systems using a molecular dynamics approach inspired by continuum homogenization.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Mechanical properties of particle systems using a molecular dynamics approach inspired by continuum homogenization./
作者:	Andia, Pedro C.
面頁冊數:	147 p.
附註:	Source: Dissertation Abstracts International, Volume: 66-05, Section: B, page: 2666.
Contained By:	Dissertation Abstracts International66-05B.
標題:	Applied Mechanics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3173776
ISBN:	0542115700

Mechanical properties of particle systems using a molecular dynamics approach inspired by continuum homogenization.
Andia, Pedro C.

Mechanical properties of particle systems using a molecular dynamics approach inspired by continuum homogenization. - 147 p.

Source: Dissertation Abstracts International, Volume: 66-05, Section: B, page: 2666.

Thesis (Ph.D.)--The Pennsylvania State University, 2005.

The topic of this dissertation is the study of the mechanical properties of solid material systems at the nanoscale. At such length scales, materials can be viewed as particle systems, and molecular dynamics (MD) simulations help one understand their behavior as well as quantify their properties. However, mechanical concepts such as strain, stress and moduli were originally developed in continuum models, which are typically applied in space scales that range from the microscopic to the macroscopic. For this reason, a careful translation of ideas from continuum scales to the nanoscale is necessary.

ISBN: 0542115700Subjects--Topical Terms:

1018410
Applied Mechanics.

Mechanical properties of particle systems using a molecular dynamics approach inspired by continuum homogenization.
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245 1 0 $a Mechanical properties of particle systems using a molecular dynamics approach inspired by continuum homogenization.
300 $a 147 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-05, Section: B, page: 2666.
500 $a Adviser: Francesco Costanzo.
502 $a Thesis (Ph.D.)--The Pennsylvania State University, 2005.
520 $a The topic of this dissertation is the study of the mechanical properties of solid material systems at the nanoscale. At such length scales, materials can be viewed as particle systems, and molecular dynamics (MD) simulations help one understand their behavior as well as quantify their properties. However, mechanical concepts such as strain, stress and moduli were originally developed in continuum models, which are typically applied in space scales that range from the microscopic to the macroscopic. For this reason, a careful translation of ideas from continuum scales to the nanoscale is necessary.
520 $a In essence, this thesis reviews and refines the continuum notions of average mechanical properties, such as stress and strain, and the meaning of such notions when MD is used to compute them. A Lagrangian-based approach is utilized for the purpose of determining the stress-deformation behavior of continua as well as of particle systems. At the continuum level, the mentioned Lagrangian-based approach is applied within homogenization theory for developing a nonlinear continuum homogenization model, which includes a novel constitutive relation for the stress. At the nanoscale, an MD method is presented as the extension of the continuum homogenization model. This MD method is able to simulate the behavior of particle systems under a given type of deformation as well as to generate stress-strain curves. In the process of developing the MD method, some concepts and techniques commonly used in MD, such as the virial stress and the Parrinello-Rahman method, are clarified.
590 $a School code: 0176.
650 4 $a Applied Mechanics. $3 1018410
650 4 $a Engineering, Materials Science. $3 1017759
650 4 $a Physics, Molecular. $3 1018648
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710 2 0 $a The Pennsylvania State University. $3 699896
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