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Nanofiber-crack interaction in a car...

Gawandi, Anis A.

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Nanofiber-crack interaction in a carbon nanofiber reinforced composite.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Nanofiber-crack interaction in a carbon nanofiber reinforced composite./
作者:	Gawandi, Anis A.
面頁冊數:	133 p.
附註:	Source: Dissertation Abstracts International, Volume: 66-10, Section: B, page: 5486.
Contained By:	Dissertation Abstracts International66-10B.
標題:	Applied Mechanics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3193396
ISBN:	9780542381454

Nanofiber-crack interaction in a carbon nanofiber reinforced composite.
Gawandi, Anis A.

Nanofiber-crack interaction in a carbon nanofiber reinforced composite. - 133 p.

Source: Dissertation Abstracts International, Volume: 66-10, Section: B, page: 5486.

Thesis (Ph.D.)--University of Dayton, 2005.

The fracture behavior of a nanocomposite reinforced with carbon nanofibers is characterized by considering the interactions between a propagating matrix crack and nanofibers. The nanofibers considered in the study have a hollow structure and transversely isotropic elastic properties. The nanoscale dimensions of these fibers render the experimental measurement of elastic properties very difficult. At the same time, the elastic properties are likely to show a significant variation with a lack of controllability. The nanofiber wall thickness is not constant and instead shows a range of values. The fracture characterization of nanofiber-reinforced composites needs to account for the influence of nanofiber hollow geometry and the interphase between the nanofiber and matrix. However, research work reported to date has been mostly empirical. Analytical studies that consider nanofiber hollow geometry in conjunction with fracture behavior have not been reported.

ISBN: 9780542381454Subjects--Topical Terms:

1018410
Applied Mechanics.

Nanofiber-crack interaction in a carbon nanofiber reinforced composite.
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245 1 0 $a Nanofiber-crack interaction in a carbon nanofiber reinforced composite.
300 $a 133 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-10, Section: B, page: 5486.
500 $a Adviser: James M. Whitney.
502 $a Thesis (Ph.D.)--University of Dayton, 2005.
520 $a The fracture behavior of a nanocomposite reinforced with carbon nanofibers is characterized by considering the interactions between a propagating matrix crack and nanofibers. The nanofibers considered in the study have a hollow structure and transversely isotropic elastic properties. The nanoscale dimensions of these fibers render the experimental measurement of elastic properties very difficult. At the same time, the elastic properties are likely to show a significant variation with a lack of controllability. The nanofiber wall thickness is not constant and instead shows a range of values. The fracture characterization of nanofiber-reinforced composites needs to account for the influence of nanofiber hollow geometry and the interphase between the nanofiber and matrix. However, research work reported to date has been mostly empirical. Analytical studies that consider nanofiber hollow geometry in conjunction with fracture behavior have not been reported.
520 $a In the present work, an insight is gained into the energetics of a matrix crack propagating towards a nanofiber using an analytical approach. Two-dimensional and three-dimensional studies are performed to compute energy release rates. Mixed mode configurations are also incorporated to evaluate mode II behavior. Additionally, secondary failure mechanisms are investigated by computing the maximum values of interface tractions and their locations. The results of the investigation indicate that the nanofiber wall thickness can have a significant influence on crack energetics. Also, the presence of an interphase between a nanofiber and matrix alters the crack energetics considerably.
590 $a School code: 0327.
650 4 $a Applied Mechanics. $3 1018410
650 4 $a Engineering, Materials Science. $3 1017759
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710 2 0 $a University of Dayton. $3 1021969
773 0 $t Dissertation Abstracts International $g 66-10B.
790 1 0 $a Whitney, James M., $e advisor
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791 $a Ph.D.
792 $a 2005
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